Asteroids

163243 2002FB3 help

Last update: 2026-02-05 12:45 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.303

Aphelion (Q)

1.220

Eccentricity (e)

0.602

Inclination (i)

20.3

deg

Orbit period (P)

242.8

Earth MOID

0.00394

U parameter

0.5

Next Earth close approach

Date

2058-04-07

Nominal distance (from Earth center)

0.19289

28856507

Maximum Brightness

14.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

16.5

mag

Diameter

1620

Taxonomic type

Rotation period (T)

6.231

Discovery Information

Discovery Date

2002-03-18

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.761575

1-sigma variation

1.898E-9

Unit

Eccentricity (e)

Value

0.601623

1-sigma variation

3.214E-7

Unit

Inclination (i)

Value

20.2828

1-sigma variation

2.298E-5

Unit

Long. of Ascending Node (Ω)

Value

203.5622

1-sigma variation

4.381E-5

Unit

Arg. of Perihelion (ω)

Value

148.3334

1-sigma variation

3.678E-5

Unit

Mean Anomaly (M)

Value

342.60806

1-sigma variation

0.00003

Unit

Perihelion distance

Value

0.303394

1-sigma variation

Unit

Aphelion distance

Value

1.219756

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.008445

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.675522

1-sigma variation

Unit

MOID

Value

0.003941

1-sigma variation

Unit

Orbit Period

Value

242.7548

1-sigma variation

Unit

U parameter

Value

0.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.60421E-18	-3.96311E-16	-2.77849E-14	4.94925E-14	-3.94991E-14	2.32776E-14
e	-3.96311E-16	1.03298E-13	6.12979E-12	-1.09693E-11	8.54559E-12	-9.17515E-12
i	-2.77849E-14	6.12979E-12	5.28039E-10	-9.65190E-10	7.66144E-10	-4.57897E-10
Ω	4.94925E-14	-1.09693E-11	-9.65190E-10	1.91906E-9	-1.57021E-9	8.55021E-10
ω	-3.94991E-14	8.54559E-12	7.66144E-10	-1.57021E-9	1.35307E-9	-7.72348E-10
M	2.32776E-14	-9.17515E-12	-4.57897E-10	8.55021E-10	-7.72348E-10	1.17645E-9

Date of computation: 2026-02-05 12:45 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

6.231

Unit

Source

[4]

Quality

Value

Unit

Source

[4]

Amplitude

Value

0.19

Unit

mag

Source

[4]

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

[1]

[2]

Taxonomy (all)

Value

Sq/Q

Unit

Source

[3]

[2]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

16.529

Unit

mag

Source

[5]

Slope Parameter (G)

Value

0.15**

Unit

Source

[5]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.18

Unit

Source

[6]

Diameter

Value

1620

Unit

Source

[6]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

0.0042

0.5722

0.1796

0.3926

-0.175

0.3968

Unit

r-z

g-i

r-i

g-r

i-z

g-z

Source

[1]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Visual S

Unit

Source

[2]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) A. V. Sergeyev, B. Carry et al A&A, 658 (2022) A109
[2]	EARN	1.) Thomas, C.A. et al. (2014) Icarus 228, 217-246. (Physical characterization of Warm Spitzer-observed near-Earth objects)
[3]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[4]	EARN	1.) Monteiro, F. et al. (2017) MPB 44, 20-22. (LIGHTCURVE ANALYSIS FOR TEN NEAR-EARTH ASTEROIDS)
[5]	ESA Aegis	ESA orbit determination and impact monitoring system
[6]	EARN	1.) Mainzer, A. et al. (2011) ApJ 743, 156. (NEOWISE Observations of Near-Earth Objects: Preliminary Results) (albedo and diameters of 428 NEOs) 2.) Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; et al. (2011) Astrophys. J. 741, A90. See also Grav 2012b and Masiero 2012. 3.) Masiero, J.R. et al. (2018) Astron. J. 154_168(10pp). (NEOWISE Reactivation Mission Year Three: Asteroid Diameters and Albedos) (170NEOs, 6110MBAs)

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

8724

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.49945

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2002-03-18.1112

Unit

Source

[2]

Last Observation

Value

2026-02-04.283319

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

1474 (18)

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

[-]

Last Observation

Value

Unit

Source

[-]

Delay (Discarded)

Value

0 (0)

Unit

Source

[-]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[-]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[-]

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

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 163243 2002FB3 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1951-04-11 00:17	< 1 min	0.1173331	0.1173206	0.0000042
EARTH	1953-04-11 06:45	< 1 min	0.0882112	0.0882006	0.0000035
EARTH	1955-04-12 09:33	< 1 min	0.0601559	0.0601477	0.0000027
EARTH	1957-04-12 08:10	< 1 min	0.0362473	0.0362420	0.0000018
EARTH	1959-04-13 02:19	< 1 min	0.0192330	0.0192312	0.0000006
EARTH	1961-04-12 16:20	< 1 min	0.0126022	0.0125997	0.0000008
EARTH	1963-04-13 02:39	< 1 min	0.0195380	0.0195336	0.0000015
EARTH	1965-04-12 08:39	< 1 min	0.0376978	0.0376934	0.0000015
EARTH	1967-04-12 10:10	< 1 min	0.0619866	0.0619830	0.0000012
EARTH	1969-04-11 07:45	< 1 min	0.0898335	0.0898308	0.0000009
EARTH	1971-04-11 01:40	< 1 s	0.1193230	0.1193210	0.0000007
MERCURY	1971-06-11 11:40	< 1 min	0.0037871	0.0037858	0.0000004
EARTH	1973-04-09 16:59	< 1 s	0.1496343	0.1496323	0.0000007
EARTH	1975-04-09 05:11	< 1 min	0.1817207	0.1817185	0.0000007
MERCURY	1988-01-22 04:26	< 1 min	0.0384367	0.0384345	0.0000007
MERCURY	2007-04-30 10:00	< 1 min	0.0160766	0.0160735	0.0000010
MERCURY	2026-08-07 13:01	< 1 min	0.0450145	0.0450128	0.0000006
MERCURY	2043-03-21 05:14	< 1 min	0.0372697	0.0372674	0.0000008
EARTH	2058-04-07 04:01	< 1 min	0.1928938	0.1928927	0.0000004
EARTH	2060-04-08 10:59	< 1 min	0.1717875	0.1717863	0.0000004
EARTH	2062-04-10 09:47	< 1 min	0.1506906	0.1506894	0.0000004
EARTH	2064-04-11 02:16	< 1 min	0.1288296	0.1288283	0.0000004
EARTH	2066-04-12 12:03	< 1 min	0.1062905	0.1062893	0.0000004
EARTH	2068-04-12 14:10	< 1 min	0.0844669	0.0844656	0.0000004
EARTH	2070-04-13 10:46	< 1 min	0.0646682	0.0646671	0.0000004
EARTH	2072-04-13 03:19	< 1 min	0.0462386	0.0462375	0.0000004
EARTH	2074-04-13 16:50	< 1 min	0.0307837	0.0307828	0.0000003
EARTH	2076-04-13 04:50	< 1 min	0.0208353	0.0208348	0.0000002
EARTH	2078-04-13 16:52	< 1 min	0.0190520	0.0190517	0.0000001
EARTH	2080-04-13 05:08	< 1 min	0.0263331	0.0263325	0.0000002
EARTH	2082-04-13 17:15	< 1 min	0.0393988	0.0393978	0.0000003
MERCURY	2082-06-22 19:53	< 1 min	0.0274018	0.0273969	0.0000016
EARTH	2084-04-13 02:37	< 1 min	0.0567350	0.0567337	0.0000004
EARTH	2086-04-13 07:38	< 1 min	0.0777669	0.0777655	0.0000005
EARTH	2088-04-12 07:49	< 1 min	0.0997654	0.0997638	0.0000005
EARTH	2090-04-12 01:38	< 1 min	0.1217157	0.1217141	0.0000005
EARTH	2092-04-10 11:42	< 1 min	0.1439732	0.1439715	0.0000006
EARTH	2094-04-09 14:58	< 1 min	0.1663279	0.1663262	0.0000006
EARTH	2096-04-07 10:59	< 1 min	0.1874264	0.1874247	0.0000006
MERCURY	2109-03-18 18:06	< 1 min	0.0428473	0.0428421	0.0000018
MERCURY	2115-03-25 23:55	< 1 min	0.0064856	0.0064831	0.0000008
MERCURY	2121-04-01 08:13	< 1 min	0.0285049	0.0284933	0.0000039

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
238.31417810	100.74917071	0.00394091	MINIMUM
125.88406171	42.92673938	0.31006783	MINIMUM
157.72224406	60.44967803	0.32209737	SADDLE
349.17190344	233.53361675	0.71729246	SADDLE
352.52216396	60.36434109	1.29151639	SADDLE
180.87712627	251.83615874	2.21671026	MAXIMUM

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MOID Plots

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