Asteroids

101955 Bennu help

Last update: 2025-03-16 23:55 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.897

Aphelion (Q)

1.355

Eccentricity (e)

0.204

Inclination (i)

6.0

deg

Orbit period (P)

436.4

Earth MOID

0.00267

U parameter

0.0

A₂

-45.3

10^-15au/days²

Next Earth close approach

Date

2037-02-11

Nominal distance (from Earth center)

0.09871

14767295

Maximum Brightness

18.2

mag

Risk

Object is in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

20.6

mag

Diameter

484

Taxonomic type

Rotation period (T)

4.290

Discovery Information

Discovery Date

1999-09-11

Observatory

Lincoln Laboratory ETS, New Mexico

ORBIT VISUALISATION TOOLS

External links

Proper elements

Epoch

Near present day

Near middle of observation arc

Orbit properties

Epoch
Semimajor Axis
Eccentricity (e)
Inclination (i)
Long. of Ascending Node (Ω)
Arg. of Perihelion (ω)
Mean Anomaly (M)
Perihelion distance
Aphelion distance
Asc. Node-Earth Sep.
Desc. Node-Earth Sep.
MOID
Orbit Period
U parameter

Value

1-sigma variation

Unit

Epoch

Value

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.125990

1-sigma variation

2.041E-10

Unit

Eccentricity (e)

Value

0.203731

1-sigma variation

2.032E-8

Unit

Inclination (i)

Value

6.0329

1-sigma variation

2.580E-6

Unit

Long. of Ascending Node (Ω)

Value

1.9725

1-sigma variation

3.602E-6

Unit

Arg. of Perihelion (ω)

Value

66.3943

1-sigma variation

5.283E-6

Unit

Mean Anomaly (M)

Value

102.50426

1-sigma variation

2.872E-6

Unit

Perihelion distance

Value

0.896591

1-sigma variation

Unit

Aphelion distance

Value

1.355389

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.004792

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.178342

1-sigma variation

Unit

MOID

Value

0.002667

1-sigma variation

Unit

Orbit Period

Value

436.4154

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

A₂

Value

-45.26615

1-sigma variation

0.23669

Unit

10^-15au/days²

Covariance Matrix

	a	e	i	Ω	ω	M	A₂
a	4.16686E-20	2.52469E-18	-3.84744E-16	-1.70069E-17	7.25131E-16	-4.78272E-16	4.17829E-11
e	2.52469E-18	4.12923E-16	-5.12933E-14	3.61351E-14	6.70223E-14	-5.38116E-14	6.41932E-10
i	-3.84744E-16	-5.12933E-14	6.65718E-12	-4.11355E-12	-8.84083E-12	7.01983E-12	-1.86326E-7
Ω	-1.70069E-17	3.61351E-14	-4.11355E-12	1.29760E-11	-7.06025E-12	-1.66688E-12	-2.98535E-7
ω	7.25131E-16	6.70223E-14	-8.84083E-12	-7.06025E-12	2.79146E-11	-1.27557E-11	5.74444E-7
M	-4.78272E-16	-5.38116E-14	7.01983E-12	-1.66688E-12	-1.27557E-11	8.24584E-12	-3.00153E-7
A₂	4.17829E-11	6.41932E-10	-1.86326E-7	-2.98535E-7	5.74444E-7	-3.00153E-7	5.60201E-2

Date of computation: 2025-02-19 15:19 UTC

Note: The ASCII file is in a format suitable for Orbfit input.

Download ASCII file:

Physical properties

Rotation Period
Quality
Amplitude
Rotation Direction
Spinvector L
Spinvector B

Rotational properties

Value

Unit

Source

Rotation Period

Value

4.290

Unit

Source

[4]

Quality

Value

Unit

Source

[4]

Amplitude

Value

0.17

Unit

mag

Source

[4]

Rotation Direction

Value

RETRO

Unit

Source

[1]

Spinvector L

Value

Unit

Source

[1]

Spinvector B

Value

-88

Unit

Source

[1]

Taxonomy
Taxonomy (all)

Taxonomy

Value

Unit

Source

Taxonomy

Value

Unit

Source

[2]

Taxonomy (all)

Value

B,C

Unit

Source

[3]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

20.61

20.19

Unit

mag

Source

[5]

[6]

Slope Parameter (G)

Value

-0.08

0.15**

Unit

mag

Source

[7]

[5]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.046

Unit

Source

[9]

Diameter

Value

484

Unit

Source

[8]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

0.16

0.36

0.64

Unit

U-B

V-R

B-V

Source

[10]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Visual S

Radar R

Unit

Source

[11]

[12]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) Nolan, M.C. et al. (2013) Icarus 226, 629-640. (Shape Model and Surface Properties of the OSIRIS-REx Target Asteroid (101955) Bennu from Radar and Lightcurve Observations) 2.) Mueller, T.G. et al. (2012) Astron. Astrophys. 548, A36. (Physical Properties of OSIRIS-REx Target Asteroid (101955) 1999 RQ36)
[2]	EARN	1.) Clark. B.E. et al. (2011) Icarus 216, 462-475. (Asteroid (101955) 1999 RQ36: Spectroscopy from 0.4 to 2.4um and Meteorite Analogs)
[3]	EARN	1.) Clark. B.E. et al. (2011) Icarus 216, 462-475. (Asteroid (101955) 1999 RQ36: Spectroscopy from 0.4 to 2.4um and Meteorite Analogs) 2.) Davies, J.K. et al. (2007) Icarus 186,111-125. (Near-infrared spectra of 12 near-Earth objects) (1627,4179, 5381,5587,6489,11405,14402,25143,25330,52760,66391,101955) 3.) Clark, B.E. et al. (2010) DPS 42, 6006. (abstract) (Asteroid (101955) 1999 RQ36: Spectroscopy from 0.4 to 2.5 microns and Meteorite Analogs)
[4]	EARN	1.) Hergenrother, C.W. et al. Icarus 226, 663-670. (Lightcurve, Color and Phase Function Photometry of the OSIRIS-REx Target Asteroid (101955) Bennu) 2.) Hergenrother, C.W. et al. (2012) LPSC 43, 2219. (LIGHTCURVE AND PHASE FUNCTION PHOTOMETRY OF THE OSIRIS-REx TARGET (101955) 1999 RQ36) 3.) Nolan, M.C. et al. (2007) DPS 39, 13.06. (The Shape and Spin of 101955 (1999 RQ36) from Arecibo and Goldstone Radar Imaging) 4.) Krugly, Yu.N. et al. (2002) Icarus 158, 294-304. (The Near-Earth Objects Follow-up Program. IV. CCD Photometry in 1996-1999). 5.) Petr Pravec's Ondrejov NEO Photometric Program Webpage "Prepublished Periods"
[5]	ESA Aegis	ESA orbit determination and impact monitoring system
[6]	EARN	1.) Hergenrother, C.W. et al. Icarus 226, 663-670. (Lightcurve, Color and Phase Function Photometry of the OSIRIS-REx Target Asteroid (101955) Bennu) 2.) Hergenrother, C.W. et al. (2012) LPSC 43, 2219. (LIGHTCURVE AND PHASE FUNCTION PHOTOMETRY OF THE OSIRIS-REx TARGET (101955) 1999 RQ36) 3.) Krugly, Yu.N. et al. (2002) Icarus 158, 294-304. (The Near-Earth Objects Follow-up Program. IV. CCD Photometry in 1996-1999).
[7]	EARN	1.) Hergenrother, C.W. et al. Icarus 226, 663-670. (Lightcurve, Color and Phase Function Photometry of the OSIRIS-REx Target Asteroid (101955) Bennu) 2.) Hergenrother, C.W. et al. (2012) LPSC 43, 2219. (LIGHTCURVE AND PHASE FUNCTION PHOTOMETRY OF THE OSIRIS-REx TARGET (101955) 1999 RQ36)
[8]	EARN	1.) Emery, J.P. et al. (2014) Icarus 234, 17-35. (Thermal Infrared Observations and Thermophysical Characterization of OSIRIS-REx Target Asteroid (101955) Bennu) 2.) Nolan, M.C. et al. (2013) Icarus 226, 629-640. (Shape Model and Surface Properties of the OSIRIS-REx Target Asteroid (101955) Bennu from Radar and Lightcurve Observations) 3.) Mueller, T.G. et al. (2012) Astron. Astrophys. 548, A36. (Physical Properties of OSIRIS-REx Target Asteroid (101955) 1999 RQ36) 4.) Binzel, R.P. et al. (2002) in "Asteroids III" (Eds. W.F.Bottke et al.), Univ.Ariz.Press, Tucson, USA, pp. 255-271. (Physical Properties of NEOs)
[9]	EARN	1.) Emery, J.P. et al. (2014) Icarus 234, 17-35. (Thermal Infrared Observations and Thermophysical Characterization of OSIRIS-REx Target Asteroid (101955) Bennu) 2.) Mueller, T.G. et al. (2012) Astron. Astrophys. 548, A36. (Physical Properties of OSIRIS-REx Target Asteroid (101955) 1999 RQ36) 3.) Binzel, R.P. et al. (2002) in "Asteroids III" (Eds. W.F.Bottke et al.), Univ.Ariz.Press, Tucson, USA, pp. 255-271. (Physical Properties of NEOs)
[10]	EARN	1.) Hergenrother, C.W. et al. Icarus 226, 663-670. (Lightcurve, Color and Phase Function Photometry of the OSIRIS-REx Target Asteroid (101955) Bennu)
[11]	EARN	1.) Davies, J.K. et al. (2007) Icarus 186,111-125. (Near-infrared spectra of 12 near-Earth objects) (1627,4179, 5381,5587,6489,11405,14402,25143,25330,52760,66391,101955) 2.) Binzel, R.P. et al. (2006) LPSC 37, 1491. (The MIT-Hawaii-IRTF joint campaign for NEO spectral reconnaissance.) 3.) Binzel, R.P. et al. href="http://smass.mit.edu/minus.html"> Webpage 4.) Clark, B.E. et al. (2010) DPS 42, 6006. (abstract) (Asteroid (101955) 1999 RQ36: Spectroscopy from 0.4 to 2.5 microns and Meteorite Analogs) 5.) Clark. B.E. et al. (2011) Icarus 216, 462-475. (Asteroid (101955) 1999 RQ36: Spectroscopy from 0.4 to 2.4um and Meteorite Analogs) 6.) Binzel, R.P. et al. (2015) Icarus 256, 22-29. (Spectral Slope Variations for OSIRIS-REx Target Asteroid (101955) Bennu: Possible Evidence for a Fine-Grained Regolith Equatorial Ridge) 7.) Brown, A.J. (2015) DPS47-213.10. (astract) (Spectral bluing on 101955 Bennu and implications for dynamics of sub micron regolith grains on asteroids)
[12]	EARN	1.) href="http://echo.jpl.nasa.gov/asteroids/index.html">JPL's NEO Radar Detection Program Webpage 2.) Hudson, R.S. et al. (2000) B.A.A.S. 32, 1001. (Recent delay-Doppler radar asteroid modelling results: 1999 RQ36 and craters on toutatis) 3.) Nolan, M.C. et al. (2007) DPS 39, 13.06. (The Shape and Spin of 101955 (1999 RQ36) from Arecibo and Goldstone Radar Imaging) 4.) Nolan, M.C. et al. (2012) ACM2012, 6345. (THE SHAPE OF OSIRIS-REX MISSION TARGET 1999 RQ36 FROM RADAR AND LIGHTCURVE DATA) 5.) Nolan, M.C. et al. (2012) DPS 44 110-02. (abstract) (The Shape of OSIRIS-REx Mission Target 1999 RQ36 from RADAR and Lightcurve Data)

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

9270

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.417532

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

1999-09-11.40624

Unit

Source

[2]

Last Observation

Value

2025-01-27.12997

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

597 (10)

Unit

Source

[1]

Radar Summary

First Observation
Last Observation
Delay (Discarded)
Doppler (Discarded)
Total Optical Observations (Discarded)

Radar

Value

Unit

Source

First Observation

Value

1999-09-21

Unit

Source

[3]

Last Observation

Value

2011-09-29

Unit

Source

[3]

Delay (Discarded)

Value

22 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

7 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

29 (0)

Unit

Source

[1]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

* - these fields are required

Close Approaches for 101955 Bennu from 1950 to 2125

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1964-09-16 05:42	< 1 min	0.0834904	0.0834620	0.0000095
EARTH	1970-09-27 02:35	< 1 min	0.0214029	0.0213984	0.0000015
EARTH	1977-02-04 09:53	< 1 s	0.0979319	0.0979293	0.0000009
EARTH	1999-09-22 18:19	< 1 s	0.0146864	0.0146863	0.0000000
EARTH	2005-09-20 10:40	< 1 s	0.0331304	0.0331302	0.0000001
EARTH	2011-09-11 00:53	< 1 s	0.1765931	0.1765931	0.0000000
EARTH	2037-02-11 13:27	< 1 min	0.0987133	0.0987107	0.0000008
EARTH	2043-02-09 18:15	< 1 min	0.0966267	0.0966234	0.0000011
EARTH	2048-11-14 21:24	2.3	0.1204475	0.1204449	0.0000009
EARTH	2049-03-07 19:36	1.7	0.1829628	0.1829577	0.0000017
EARTH	2054-09-30 00:59	< 1 min	0.0392992	0.0392903	0.0000030
EARTH	2060-09-23 00:35	< 1 min	0.0050081	0.0050008	0.0000024
EARTH	2068-02-15 03:20	3.4	0.0704716	0.0704324	0.0000151
EARTH	2080-09-22 00:39	162.8	0.0155151	0.0119112	0.0012033
EARTH	2087-10-01 23:34	> 1 d	0.0523418	0.0057428	0.0199198
EARTH	2094-11-25 20:18	> 1 w	0.1326748	0.1242210	0.0030909
EARTH	2095-03-13 16:18	> 1 d	0.1740978	0.1472915	0.0094331
EARTH	2102-02-17 10:06	127.0	0.0802675	0.0728155	0.0028771
EARTH	2109-02-19 11:56	11.1	0.1125569	0.1079408	0.0015546

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
302.87003937	259.46349045	0.00266720	MINIMUM
61.30537878	37.88519180	0.07546310	MINIMUM
6.93977719	335.01754727	0.12923717	SADDLE
181.37349816	146.75403987	0.36022344	SADDLE
357.63195473	143.72501046	1.90771613	SADDLE
177.54742343	323.61007419	2.33935037	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out

Level lines of the squared distance function

101955 Bennu

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS	TS
2178-09-24.690	116824.690	1.504	n/a	n/a ± n/a	n/a	4.00E-7	5.68E-4	-4.55	n/a
2179-09-25.050	117190.050	0.816	n/a	n/a ± n/a	n/a	8.00E-7	1.14E-3	-4.25	n/a
2181-09-24.500	117920.500	0.904	n/a	n/a ± n/a	n/a	6.00E-7	8.52E-4	-4.38	n/a
2181-09-24.520	117920.520	1.331	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.86	n/a
2182-09-24.850	118285.850	0.909	n/a	n/a ± n/a	n/a	3.70E-4	5.25E-1	-1.59	n/a
2184-09-24.190	119016.190	2.187	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.87	n/a
2184-09-24.220	119016.220	1.836	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.87	n/a
2184-09-24.300	119016.300	1.393	n/a	n/a ± n/a	n/a	2.00E-6	2.84E-3	-3.87	n/a
2185-09-24.330	119381.330	2.555	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.17	n/a
2185-09-24.450	119381.450	1.728	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.87	n/a
2185-09-24.460	119381.460	1.994	n/a	n/a ± n/a	n/a	3.00E-7	4.26E-4	-4.69	n/a
2185-09-24.470	119381.470	2.048	n/a	n/a ± n/a	n/a	1.10E-6	1.56E-3	-4.13	n/a
2185-09-24.490	119381.490	1.391	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.87	n/a
2185-09-24.510	119381.510	1.663	n/a	n/a ± n/a	n/a	3.00E-7	4.26E-4	-4.69	n/a
2185-09-24.550	119381.550	0.966	n/a	n/a ± n/a	n/a	5.00E-7	7.10E-4	-4.47	n/a
2186-09-24.570	119746.570	2.951	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.17	n/a
2186-09-24.670	119746.670	1.540	n/a	n/a ± n/a	n/a	3.00E-7	4.26E-4	-4.70	n/a
2186-09-24.710	119746.710	1.316	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.17	n/a
2187-09-24.860	120111.860	2.743	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.17	n/a
2187-09-24.920	120111.920	1.832	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.18	n/a
2187-09-24.930	120111.930	1.499	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.17	n/a
2187-09-24.960	120111.960	1.367	n/a	n/a ± n/a	n/a	8.00E-7	1.14E-3	-4.27	n/a
2187-09-24.970	120111.970	1.290	n/a	n/a ± n/a	n/a	7.00E-7	9.94E-4	-4.33	n/a
2187-09-24.970	120111.970	2.286	n/a	n/a ± n/a	n/a	3.00E-7	4.26E-4	-4.70	n/a
2187-09-24.990	120111.990	1.861	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.87	n/a
2187-09-24.990	120111.990	1.042	n/a	n/a ± n/a	n/a	1.40E-5	1.99E-2	-3.03	n/a
2187-09-25.060	120112.060	0.456	n/a	n/a ± n/a	n/a	7.10E-5	1.01E-1	-2.32	n/a
2188-09-24.170	120477.170	3.568	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.18	n/a
2188-09-24.210	120477.210	3.341	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.18	n/a
2188-09-24.260	120477.260	1.421	n/a	n/a ± n/a	n/a	3.00E-7	4.26E-4	-4.70	n/a
2189-09-24.320	120842.320	2.803	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.18	n/a
2189-09-24.400	120842.400	1.842	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.18	n/a
2189-09-24.470	120842.470	3.031	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.18	n/a
2189-09-24.480	120842.480	2.684	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.88	n/a
2189-09-24.500	120842.500	1.077	n/a	n/a ± n/a	n/a	7.00E-7	9.94E-4	-4.34	n/a
2189-09-24.570	120842.570	2.809	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.88	n/a
2190-09-24.640	121207.640	2.158	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.88	n/a
2190-09-24.680	121207.680	2.801	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.18	n/a
2190-09-24.700	121207.700	2.605	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.88	n/a
2190-09-24.700	121207.700	1.878	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.18	n/a
2190-09-24.730	121207.730	1.121	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.18	n/a
2190-09-24.740	121207.740	2.001	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.88	n/a
2190-09-24.780	121207.780	0.836	n/a	n/a ± n/a	n/a	2.50E-6	3.55E-3	-3.78	n/a
2191-09-24.830	121572.830	0.704	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.88	n/a
2191-09-24.910	121572.910	2.519	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.19	n/a
2191-09-24.940	121572.940	1.253	n/a	n/a ± n/a	n/a	6.00E-7	8.52E-4	-4.41	n/a
2191-09-24.980	121572.980	2.204	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.19	n/a
2191-09-25.010	121573.010	1.953	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.19	n/a
2191-09-25.020	121573.020	1.308	n/a	n/a ± n/a	n/a	1.60E-6	2.27E-3	-3.98	n/a
2192-09-24.180	121938.180	0.920	n/a	n/a ± n/a	n/a	3.20E-6	4.54E-3	-3.68	n/a
2192-09-24.180	121938.180	0.862	n/a	n/a ± n/a	n/a	8.00E-7	1.14E-3	-4.28	n/a
2192-09-24.310	121938.310	0.509	n/a	n/a ± n/a	n/a	3.90E-5	5.54E-2	-2.60	n/a
2193-09-24.400	122303.400	1.926	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.19	n/a
2193-09-24.440	122303.440	1.661	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.19	n/a
2193-09-24.480	122303.480	1.236	n/a	n/a ± n/a	n/a	5.00E-7	7.10E-4	-4.49	n/a
2193-09-24.480	122303.480	2.506	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.19	n/a
2193-09-24.510	122303.510	1.939	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.89	n/a
2193-09-24.510	122303.510	1.627	n/a	n/a ± n/a	n/a	3.80E-6	5.40E-3	-3.61	n/a
2193-09-24.590	122303.590	3.183	n/a	n/a ± n/a	n/a	1.60E-5	2.27E-2	-2.98	n/a
2194-09-24.470	122668.470	1.895	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.19	n/a
2194-09-24.690	122668.690	1.073	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.19	n/a
2194-09-24.780	122668.780	0.892	n/a	n/a ± n/a	n/a	1.20E-5	1.70E-2	-3.11	n/a
2195-09-24.700	123033.700	1.747	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.20	n/a
2195-09-24.860	123033.860	2.035	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.20	n/a
2195-09-24.890	123033.890	1.995	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.20	n/a
2195-09-24.910	123033.910	2.810	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.20	n/a
2195-09-24.920	123033.920	1.613	n/a	n/a ± n/a	n/a	5.00E-7	7.10E-4	-4.50	n/a
2195-09-24.940	123033.940	1.124	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.89	n/a
2195-09-24.970	123033.970	1.984	n/a	n/a ± n/a	n/a	4.00E-7	5.68E-4	-4.59	n/a
2195-09-24.990	123033.990	1.745	n/a	n/a ± n/a	n/a	6.00E-7	8.52E-4	-4.42	n/a
2196-09-24.030	123399.030	4.055	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.20	n/a
2196-09-24.100	123399.100	1.769	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.20	n/a
2196-09-24.100	123399.100	2.403	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.20	n/a
2196-09-24.100	123399.100	2.687	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.20	n/a
2196-09-24.210	123399.210	1.621	n/a	n/a ± n/a	n/a	5.00E-7	7.10E-4	-4.50	n/a
2196-09-24.220	123399.220	2.018	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.20	n/a
2196-09-24.230	123399.230	3.487	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.20	n/a
2196-09-24.240	123399.240	4.481	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.20	n/a
2197-09-24.270	123764.270	2.159	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.20	n/a
2197-09-24.360	123764.360	1.644	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.20	n/a
2197-09-24.390	123764.390	2.908	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.20	n/a
2197-09-24.410	123764.410	0.838	n/a	n/a ± n/a	n/a	2.70E-6	3.83E-3	-3.77	n/a
2197-09-24.440	123764.440	1.490	n/a	n/a ± n/a	n/a	1.60E-6	2.27E-3	-4.00	n/a
2197-09-24.440	123764.440	2.806	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.90	n/a
2198-09-24.600	124129.600	3.003	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.20	n/a
2198-09-24.700	124129.700	4.534	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.20	n/a
2198-09-24.700	124129.700	0.719	n/a	n/a ± n/a	n/a	3.00E-7	4.26E-4	-4.73	n/a
2198-09-24.700	124129.700	1.856	n/a	n/a ± n/a	n/a	4.00E-7	5.68E-4	-4.60	n/a
2199-09-24.850	124494.850	2.704	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.90	n/a
2199-09-24.870	124494.870	2.139	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.21	n/a
2199-09-24.950	124494.950	3.994	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.21	n/a
2199-09-25.030	124495.030	1.387	n/a	n/a ± n/a	n/a	6.00E-7	8.52E-4	-4.43	n/a
2200-09-25.080	124860.080	2.615	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.21	n/a
2200-09-25.090	124860.090	3.547	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.21	n/a
2200-09-25.140	124860.140	2.793	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.21	n/a
2200-09-25.170	124860.170	3.177	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.21	n/a
2201-09-25.300	125225.300	2.560	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.21	n/a
2201-09-25.320	125225.320	1.316	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.21	n/a
2201-09-25.330	125225.330	3.251	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.21	n/a
2201-09-25.380	125225.380	1.549	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.21	n/a
2201-09-25.410	125225.410	1.482	n/a	n/a ± n/a	n/a	3.00E-7	4.26E-4	-4.73	n/a
2201-09-25.420	125225.420	1.623	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.21	n/a
2202-09-25.560	125590.560	3.044	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.21	n/a
2202-09-25.610	125590.610	1.736	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.91	n/a
2202-09-25.670	125590.670	1.542	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.91	n/a
2202-09-25.680	125590.680	3.982	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.21	n/a
2202-09-25.680	125590.680	1.804	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.91	n/a
2203-09-25.830	125955.830	2.250	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.91	n/a
2203-09-25.830	125955.830	2.387	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.22	n/a
2203-09-25.850	125955.850	4.799	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.21	n/a
2203-09-25.940	125955.940	2.327	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.91	n/a
2203-09-26.030	125956.030	1.298	n/a	n/a ± n/a	n/a	1.00E-6	1.42E-3	-4.21	n/a
2204-09-25.080	126321.080	2.254	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.22	n/a
2204-09-25.160	126321.160	1.819	n/a	n/a ± n/a	n/a	3.00E-7	4.26E-4	-4.74	n/a
2204-09-25.160	126321.160	1.399	n/a	n/a ± n/a	n/a	3.00E-7	4.26E-4	-4.74	n/a
2204-09-25.190	126321.190	3.370	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.22	n/a
2205-09-25.260	126686.260	2.246	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.22	n/a
2205-09-25.280	126686.280	1.325	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.22	n/a
2205-09-25.350	126686.350	1.434	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.22	n/a
2206-09-25.630	127051.630	2.962	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.22	n/a
2206-09-25.640	127051.640	2.774	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.22	n/a
2206-09-25.660	127051.660	2.031	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.92	n/a
2207-09-25.750	127416.750	2.701	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.22	n/a
2207-09-25.860	127416.860	0.782	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.92	n/a
2207-09-25.930	127416.930	1.661	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.22	n/a
2208-09-25.130	127782.130	1.203	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.23	n/a
2208-09-25.250	127782.250	1.014	n/a	n/a ± n/a	n/a	5.00E-7	7.10E-4	-4.53	n/a
2209-09-25.220	128147.220	2.833	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.23	n/a
2209-09-25.300	128147.300	1.671	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.93	n/a
2210-09-25.510	128512.510	2.484	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.23	n/a
2210-09-25.600	128512.600	2.336	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.23	n/a
2210-09-25.640	128512.640	2.884	n/a	n/a ± n/a	n/a	2.00E-7	2.84E-4	-4.93	n/a
2210-09-25.660	128512.660	3.377	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.23	n/a
2210-09-25.690	128512.690	1.519	n/a	n/a ± n/a	n/a	1.40E-6	1.99E-3	-4.09	n/a
2210-09-25.690	128512.690	2.167	n/a	n/a ± n/a	n/a	3.00E-7	4.26E-4	-4.75	n/a
2210-09-25.740	128512.740	1.372	n/a	n/a ± n/a	n/a	1.30E-6	1.85E-3	-4.12	n/a
2210-09-25.750	128512.750	1.726	n/a	n/a ± n/a	n/a	3.00E-7	4.26E-4	-4.75	n/a
2212-09-25.100	129243.100	3.648	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.24	n/a
2213-09-25.170	129608.170	3.159	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.24	n/a
2213-09-25.230	129608.230	1.938	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.24	n/a
2213-09-25.260	129608.260	1.207	n/a	n/a ± n/a	n/a	8.00E-7	1.14E-3	-4.34	n/a
2214-09-25.680	129973.680	2.499	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.24	n/a
2215-09-25.820	130338.820	1.494	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.24	n/a
2218-09-25.490	131434.490	1.803	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.25	n/a
2220-09-25.120	132165.120	2.153	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.25	n/a
2224-09-24.790	133625.790	1.484	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.26	n/a
2224-09-24.910	133625.910	1.923	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.26	n/a
2228-09-24.680	135086.680	3.745	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.27	n/a
2228-09-24.730	135086.730	1.151	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.27	n/a
2231-09-25.590	136182.590	1.418	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.28	n/a
2231-09-25.660	136182.660	2.365	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.28	n/a
2231-09-25.850	136182.850	2.620	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.28	n/a
2254-09-24.850	144582.850	2.744	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.32	n/a
2257-09-24.580	145678.580	1.944	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.33	n/a
2272-09-24.380	151157.380	0.948	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.35	n/a
2281-09-24.570	154444.570	2.053	n/a	n/a ± n/a	n/a	1.00E-7	1.42E-4	-5.37	n/a
2290-09-25.120	157732.120	2.160	n/a	n/a ± n/a	n/a	1.00E-7	1.43E-4	-5.38	n/a


Based on 554 observations from 1999/09/11 to 2020/10/03.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between N/A and N/A Earth radii. Coordinates for LOV = N/A scaled= N/A second= N/A.
AstOD software version= 2.0, Date of computation=20210714 120000.000 UTC.
ADDITIONAL NOTE This risk table has not been computed with the standard AstOD software, but by a Monte Carlo run performed by CNEOS. The complete study performed by the CNEOS team is explained in the paper Farnocchia et al. (2021). Note that the sigma values are referred to the sigma of the Monte Carlo method.

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