Asteroids

2002MN help

Last update: 2024-04-27 23:53 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.909

Aphelion (Q)

2.721

Eccentricity (e)

0.499

Inclination (i)

1.0

deg

Orbit period (P)

892.9

Earth MOID

0.00040

U parameter

7.4

Next Earth close approach

Date

2024-06-23

Nominal distance (from Earth center)

0.07207

10781708

Maximum Brightness

20.5

mag

Risk

Object is in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

23.6

mag

Diameter

50 - 110*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2002-06-17

Observatory

Lincoln Laboratory ETS, New Mexico

Orbit Visualiser

Click the button to start Orbit Visualiser

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

60400.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.814692

1-sigma variation

0.000531

Unit

Eccentricity (e)

Value

0.499363

1-sigma variation

0.000160

Unit

Inclination (i)

Value

1.0474

1-sigma variation

0.0015

Unit

Long. of Ascending Node (Ω)

Value

85.2862

1-sigma variation

0.0916

Unit

Arg. of Perihelion (ω)

Value

131.5876

1-sigma variation

0.0971

Unit

Mean Anomaly (M)

Value

342.27484

1-sigma variation

1.43232

Unit

Perihelion distance

Value

0.908501

1-sigma variation

Unit

Aphelion distance

Value

2.720884

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.058775

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.005990

1-sigma variation

Unit

MOID

Value

0.000403

1-sigma variation

Unit

Orbit Period

Value

892.9003

1-sigma variation

Unit

U parameter

Value

7.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.81772E-7	8.47341E-8	-7.99096E-7	-4.86401E-5	5.15550E-5	-7.60305E-4
e	8.47341E-8	2.54836E-8	-2.40313E-7	-1.46267E-5	1.55030E-5	-2.28638E-4
i	-7.99096E-7	-2.40313E-7	2.26666E-6	1.37941E-4	-1.46207E-4	2.15620E-3
Ω	-4.86401E-5	-1.46267E-5	1.37941E-4	8.39640E-3	-8.89960E-3	1.31245E-1
ω	5.15550E-5	1.55030E-5	-1.46207E-4	-8.89960E-3	9.43298E-3	-1.39111E-1
M	-7.60305E-4	-2.28638E-4	2.15620E-3	1.31245E-1	-1.39111E-1	2.05153E0

Date of computation: 2024-04-23 10:08 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

Unit

Source

[-]

Quality

Value

Unit

Source

[-]

Amplitude

Value

Unit

mag

Source

[-]

Rotation Direction

Value

Unit

Source

[-]

Spinvector L

Value

Unit

Source

[-]

Spinvector B

Value

Unit

Source

[-]

Taxonomy
Taxonomy (all)

Taxonomy

Value

Unit

Source

Taxonomy

Value

Unit

Source

[-]

Taxonomy (all)

Value

Unit

Source

[-]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

23.625

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

50 - 110*

Unit

Source

[2]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

Unit

mag

Source

[-]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Unit

Source

[-]

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Sources

No.	Name	Additional
[1]	ESA ODIM	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

Source

[1]

Unobserved

Value

7933

Unit

Source

[1]

Normalized RMS of residuals

Value

0.532537

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2002-06-17.37897

Unit

Source

[2]

Last Observation

Value

2002-08-09.45951

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

90 (3)

Unit

Source

[1]

Radar Summary

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

Radar

Value

Unit

Source

First Observation

Value

Unit

Source

[3]

Last Observation

Value

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[1]

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

Sources

No.	Name	Additional
[1]	ESA ODIM	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 2002MN from 1950 to 2124

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	1961-03-28 07:53	> 1 w	0.0444822	0.0021443	0.0504533
EARTH	1979-03-01 17:32	> 1 d	0.1855848	0.0099624	0.0586015
EARTH	2002-06-14 02:01	< 1 min	0.0008022	0.0008015	0.0000002
MARS	2014-10-31 17:07	> 1 d	0.0328292	0.0265416	0.0170140
EARTH	2024-06-23 09:03	> 1 d	0.0720713	0.0000287	0.0579151
EARTH	2029-02-27 03:15	> 1 d	0.1763177	0.0527989	0.0417247
EARTH	2051-03-12 03:17	> 1 w	0.0368355	0.0181584	0.0522741
EARTH	2068-07-01 08:27	> 1 w	0.1664493	0.0019089	0.1191452
EARTH	2073-03-04 05:33	> 1 w	0.1225038	0.0182778	0.1538365
MARS	2088-03-08 06:16	> 1 w	0.0318943	0.0264431	0.0916820
EARTH	2090-06-27 13:46	> 1 w	0.1078736	0.0009317	0.1886216
EARTH	2095-02-28 03:21	> 1 w	0.1852121	0.0185342	0.1638833
EARTH	2112-06-20 00:12	> 1 d	0.0209321	0.0009961	0.0126372
EARTH	2117-03-01 21:51	1149.0	0.1718878	0.1312778	0.0135650

Download as:

2002MN

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS
2070-06-15.962	77277.962	-1.343	1.44 ± 0.001	1.11E6	8.23E-8	1.22E-6	-6.29
2071-06-15.657	77642.657	-0.982	1.33 ± 0.003	5.38E5	1.19E-6	1.77E-5	-5.14
2071-06-16.049	77643.049	-1.129	0.44 ± 0.000	6.10E6	9.68E-8	1.44E-6	-6.23
2071-06-16.847	77643.847	-1.153	1.40 ± 0.002	2.79E6	5.90E-8	8.88E-7	-6.44
2074-06-16.685	78739.685	-1.173	1.07 ± 0.002	9.18E5	6.35E-7	9.54E-6	-5.44
2078-06-16.280	80200.280	-1.147	0.41 ± 0.000	1.02E8	5.69E-9	8.54E-8	-7.52
2097-06-15.072	87139.072	-1.852	1.47 ± 0.004	1.52E5	1.79E-7	2.63E-6	-6.16
2100-06-16.398	88235.398	3.610	1.05 ± 0.001	3.70E4	4.67E-8	6.98E-7	-6.75
2101-06-16.824	88600.824	-1.038	0.25 ± 0.001	3.08E6	2.19E-7	3.24E-6	-6.09
2107-06-17.475	90792.475	-1.067	0.83 ± 0.000	5.32E6	1.03E-7	1.53E-6	-6.45
2107-06-17.497	90792.497	-1.753	1.20 ± 0.001	2.68E6	5.49E-8	8.12E-7	-6.72
2109-06-15.881	91521.881	-1.300	0.90 ± 0.002	5.40E5	7.72E-7	1.14E-5	-5.58
2120-06-16.236	95540.236	-0.880	0.18 ± 0.038	8.54E5	9.30E-7	1.37E-5	-5.56
2121-06-16.503	95905.503	-1.044	0.11 ± 0.000	4.08E6	1.67E-7	2.46E-6	-6.31
2122-06-17.415	96271.415	-0.471	1.21 ± 0.002	1.75E5	4.66E-6	6.94E-5	-4.86


Based on 90 optical observations (of which 3 are rejected as outliers) from 2002/06/17.379 to 2002/08/09.460.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.46 and 1.46 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
AstOD software version= 4.0, Date of computation=20240110 090430.477 UTC.

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