3103 Eger (1982 BB)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3541833241 ± 2.00e+00
Semi-major axis (a)1.4039472551 AU ± 3.00e+00
Inclination (i)20.93071887° ± 4.00e+00
Long. of Asc. Node (Ω)129.73173744° ± 5.00e+00
Arg. of Perihelion (ω)254.10494834° ± 6.00e+00
Mean Anomaly (M)181.12184640° ± 8.33e-05
Mean Motion (n)0.5924969077°/day ± 1.90e+00
Perihelion dist (q)0.90669255 AU ± 3.41e+00
Aphelion dist (Q)1.90120196 AU ± 4.94e+00
Orbital Period1.66351296 yr ± 5.33e+00
NGA Modelr2
A24.86502687e-06 AU/d²
Physical Parameters
H (abs. magnitude)15.30
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.341″
Uncertainty0
Orbit TypeApollo
MOID0.078006 AU
Observations Used7901
Radar Obs Used4
Gaia Obs Used108
Oppositions14
Arc Total1982-2017
First Observation Used1982-02-02
Last Observation Used2026-04-05
Observations (11858)
Date Type RA Dec Mag Band Observatory
2001-06-19 10:06:05 C 21 06 29.95 +12 19 28.5 15.1 c 704
2001-06-23 08:37:58 C 21 14 07.04 +12 28 48.0 739
2001-06-23 09:02:18 C 21 14 08.96 +12 28 49.1 739
2001-06-23 09:08:53 C 21 14 09.48 +12 28 49.6 739
2001-06-26 16:04:03 C 21 20 58.57 +12 29 12.5 349
2001-06-26 16:05:37 C 21 20 58.67 +12 29 13.0 349
2001-06-26 16:07:21 C 21 20 58.80 +12 29 13.0 349
2001-06-26 16:11:10 C 21 20 59.18 +12 29 12.2 349
2001-06-26 22:43:27 C 21 21 34.64 +12 28 48.0 113
2001-06-26 22:45:27 C 21 21 34.81 +12 28 48.0 113
2001-06-26 22:47:28 C 21 21 34.99 +12 28 47.8 113
2001-06-26 22:49:28 C 21 21 35.17 +12 28 47.9 113
2001-06-26 22:51:28 C 21 21 35.34 +12 28 47.8 113
2001-06-30 02:49:48 C 21 28 42.27 +12 20 35.1 16.2 939
2001-06-30 03:04:54 C 21 28 43.66 +12 20 32.4 16.3 939
2001-06-30 03:19:58 C 21 28 45.06 +12 20 30.1 16.2 939
2001-06-30 06:47:24 C 21 29 06.52 +12 19 49.9 642
2001-06-30 06:52:38 C 21 29 06.99 +12 19 49.4 642
2001-06-30 06:57:33 C 21 29 07.47 +12 19 48.7 642
2001-07-01 03:04:07 C 21 31 06.61 +12 16 01.0 15.0 939
2001-07-01 03:20:32 C 21 31 08.17 +12 15 57.6 15.0 939
2001-07-01 03:34:22 C 21 31 09.50 +12 15 54.3 15.0 939
2001-07-03 17:08:57 C 21 37 37.94 +11 59 22.0 349
2001-07-03 17:10:20 C 21 37 38.09 +11 59 22.1 349
2001-07-03 17:11:42 C 21 37 38.21 +11 59 21.2 349
2001-07-03 17:13:14 C 21 37 38.42 +11 59 21.0 349
2001-07-05 22:39:10 C 21 43 44.46 +11 38 21.0 046
2001-07-05 22:43:01 C 21 43 44.90 +11 38 19.3 046
2001-07-05 22:44:17 C 21 43 45.05 +11 38 18.9 046
2001-07-05 22:45:27 C 21 43 45.19 +11 38 18.3 046
2001-07-05 22:46:33 C 21 43 45.31 +11 38 17.8 046
2001-07-08 00:21:14 C 21 49 52.85 +11 12 34.4 i 212
2001-07-08 00:50:14 C 21 49 56.44 +11 12 16.7 i 212
2001-07-09 23:51:39 C 21 56 15.58 +10 41 00.9 i 212
2001-07-10 00:14:54 C 21 56 18.78 +10 40 44.2 i 212
2001-07-13 16:01:48 C 22 09 43.24 +09 20 45.9 355
2001-07-13 16:03:49 C 22 09 43.57 +09 20 43.6 355
2001-07-13 16:05:38 C 22 09 43.84 +09 20 41.7 355
2001-07-13 16:07:41 C 22 09 44.17 +09 20 39.5 355
2001-07-15 02:26:29 C 22 15 40.60 +08 40 02.5 i 212
2001-07-15 02:50:39 C 22 15 44.75 +08 39 32.0 i 212
2001-07-16 07:56:33 C 22 21 10.90 +08 00 10.3 13.8 c 704
2001-07-16 08:10:43 C 22 21 13.49 +07 59 50.2 14.1 c 704
2001-07-16 08:25:03 C 22 21 16.12 +07 59 29.6 14.0 c 704
2001-07-16 08:39:15 C 22 21 18.73 +07 59 09.2 14.0 c 704
2001-07-20 07:00:32 C 22 41 48.43 +05 13 10.7 c 699
2001-07-20 07:30:05 C 22 41 55.43 +05 12 08.5 c 699
2001-07-20 08:11:37 C 22 42 05.23 +05 10 40.7 c 699
2001-07-20 08:53:10 C 22 42 15.02 +05 09 12.8 c 699
2001-07-26 00:37:23 C 23 22 43.67 -01 11 02.5 c 113
Radar Observations (8)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1986-07-18 07:50:00 202602 6 Hz 2380 -1 -1
1986-07-18.326389 20260200 600 Hz 2380 251 251
1996-07-29 09:10:00 469654 5 Hz 8510 -14 -14
1996-07-29 13:00:00 133166634 10 us 8510 -14 -14
1996-07-29.381944 46965400 500 Hz 8510 253 253
1996-07-29.541667 13316663400 10000 us 8510 253 253
1996-07-30 10:50:00 410012.2 5 Hz 8510 -14 -14
1996-07-30.451389 41001220 500 Hz 8510 253 253
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)