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
2002-02-03 11:43:22 C 10 13 36.34 +21 53 08.6 14.5 c 644
2002-02-03 11:58:18 C 10 13 35.14 +21 53 35.7 14.6 c 644
2002-02-03 12:13:13 C 10 13 33.95 +21 54 02.9 14.8 c 644
2002-02-04 08:48:59 C 10 11 59.55 +22 31 32.5 c 699
2002-02-04 09:29:29 C 10 11 56.21 +22 32 45.4 c 699
2002-02-04 10:10:01 C 10 11 52.89 +22 33 58.2 c 699
2002-02-04 10:50:39 C 10 11 49.57 +22 35 10.9 c 699
2002-02-06 07:40:41 C 10 08 19.98 +23 54 24.8 14.8 c 704
2002-02-06 08:02:11 C 10 08 18.18 +23 55 02.2 15.0 c 704
2002-02-06 08:23:49 C 10 08 16.36 +23 55 39.5 15.1 c 704
2002-02-06 08:45:21 C 10 08 14.44 +23 56 16.5 18.3 c 704
2002-02-06 09:07:12 C 10 08 12.74 +23 56 54.5 15.6 c 704
2002-02-06 13:56:46 C 10 07 50.71 +24 05 12.4 379
2002-02-06 14:10:35 C 10 07 49.56 +24 05 36.1 379
2002-02-06 14:15:31 C 10 07 49.13 +24 05 45.1 379
2002-02-06 14:23:02 C 10 07 48.53 +24 05 57.7 379
2002-02-07 13:38:09 C 10 05 58.35 +24 45 28.5 379
2002-02-07 13:45:23 C 10 05 57.77 +24 45 40.2 379
2002-02-07 13:49:07 C 10 05 57.42 +24 45 47.1 379
2002-02-07 13:53:38 C 10 05 57.02 +24 45 54.5 379
2002-02-07 14:02:41 C 10 05 56.28 +24 46 09.9 379
2002-02-07 14:10:52 C 10 05 55.61 +24 46 23.5 379
2002-02-09 13:20:46 C 10 02 10.97 +26 03 27.6 c 379
2002-02-09 13:26:17 C 10 02 10.51 +26 03 36.5 c 379
2002-02-09 13:29:15 C 10 02 10.25 +26 03 41.6 c 379
2002-02-09 13:35:07 C 10 02 09.80 +26 03 50.6 c 379
2002-02-10 07:35:11 C 10 00 43.49 +26 32 09.6 15.7 c 704
2002-02-10 07:55:45 C 10 00 41.76 +26 32 41.5 15.5 c 704
2002-02-10 08:16:20 C 10 00 40.05 +26 33 13.3 15.4 c 704
2002-02-10 08:37:12 C 10 00 38.30 +26 33 45.7 15.4 c 704
2002-02-10 09:01:18 C 10 00 36.28 +26 34 23.2 15.7 c 704
2002-02-10 12:54:21 C 10 00 18.76 +26 40 21.6 379
2002-02-10 12:59:36 C 10 00 18.34 +26 40 30.7 379
2002-02-10 13:08:12 C 10 00 17.63 +26 40 44.1 379
2002-02-10 13:18:07 C 10 00 16.78 +26 40 58.9 379
2002-02-11 07:30:08 C 09 58 49.81 +27 08 45.8 14.9 c 704
2002-02-11 07:51:02 C 09 58 48.03 +27 09 17.4 15.2 c 704
2002-02-11 08:11:53 C 09 58 46.29 +27 09 48.5 15.1 c 704
2002-02-11 08:32:54 C 09 58 44.53 +27 10 19.9 15.5 c 704
2002-02-11 08:53:54 C 09 58 42.79 +27 10 51.5 15.6 c 704
2002-02-11 12:56:13 C 09 58 24.61 +27 16 53.3 379
2002-02-11 13:01:06 C 09 58 24.23 +27 17 00.8 379
2002-02-12 03:03:29 C 09 57 17.81 +27 37 46.9 15.4 i 866
2002-02-12 03:27:30 C 09 57 15.82 +27 38 22.5 15.2 i 866
2002-02-12 03:51:29 C 09 57 13.85 +27 38 57.8 15.1 i 866
2002-02-12 05:41:57 C 09 57 05.21 +27 41 40.9 15.0 c 704
2002-02-12 06:04:05 C 09 57 03.40 +27 42 13.1 14.8 c 704
2002-02-12 06:27:05 C 09 57 01.47 +27 42 47.0 15.1 c 704
2002-02-12 06:48:22 C 09 56 59.70 +27 43 18.2 14.7 c 704
2002-02-12 07:11:31 C 09 56 57.77 +27 43 52.0 15.1 c 704
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)