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
2002-04-03 05:56:32 C 09 21 41.69 +36 55 04.7 17.9 c 704
2002-04-03 06:18:23 C 09 21 42.25 +36 55 00.9 18.1 c 704
2002-04-14 22:20:28 C 09 30 37.32 +35 57 06.4 c 198
2002-04-18 03:20:03 C 09 33 47.10 +35 36 12.9 18.8 c 704
2002-04-18 03:20:38 C 09 33 47.04 +35 36 13.6 c 699
2002-04-18 03:39:34 C 09 33 47.77 +35 36 07.8 19.1 c 704
2002-04-18 03:44:57 C 09 33 48.01 +35 36 06.5 c 699
2002-04-18 03:59:05 C 09 33 48.61 +35 36 02.2 19.5 c 704
2002-04-18 04:09:14 C 09 33 49.03 +35 35 59.6 c 699
2002-04-18 04:33:31 C 09 33 49.95 +35 35 52.7 c 699
2002-05-04 03:30:39 C 09 52 47.90 +33 28 15.0 18.1 c 704
2002-05-04 03:48:23 C 09 52 48.84 +33 28 08.5 18.1 c 704
2002-05-04 04:06:02 C 09 52 49.77 +33 28 01.7 18.1 c 704
2002-05-04 04:23:40 C 09 52 50.72 +33 27 55.0 18.5 c 704
2002-05-04 04:41:23 C 09 52 51.68 +33 27 47.8 18.6 c 704
2004-01-29 10:56:48 C 14 45 08.00 +05 44 41.4 18.8 c 704
2004-01-29 11:14:12 C 14 45 09.06 +05 44 47.5 18.8 c 704
2004-01-29 11:31:29 C 14 45 09.93 +05 44 53.4 18.5 c 704
2004-01-29 11:49:02 C 14 45 10.90 +05 44 59.0 18.7 c 704
2004-01-29 12:06:40 C 14 45 11.84 +05 45 05.3 18.4 c 704
2004-02-18 11:07:51 C 15 07 30.28 +09 23 31.5 18.3 c 704
2004-02-18 11:30:40 C 15 07 31.11 +09 23 44.6 18.1 c 704
2004-02-18 11:47:38 C 15 07 31.62 +09 23 54.3 18.2 c 704
2004-02-18 12:06:20 C 15 07 32.29 +09 24 05.2 18.1 c 704
2004-02-21 10:11:40 C 15 09 54.26 +10 05 28.7 r H41
2004-02-21 10:17:13 C 15 09 54.46 +10 05 31.5 r H41
2004-02-21 10:21:30 C 15 09 54.67 +10 05 34.8 r H41
2004-02-27 09:58:20 C 15 13 53.62 +11 37 41.0 r H41
2004-02-27 10:02:02 C 15 13 53.71 +11 37 42.0 r H41
2004-02-27 10:04:36 C 15 13 53.77 +11 37 45.0 r H41
2004-02-27 10:08:12 C 15 13 53.83 +11 37 46.9 r H41
2004-03-01 09:23:55 C 15 15 24.85 +12 26 57.4 17.7 c 704
2004-03-01 09:40:09 C 15 15 25.16 +12 27 09.0 17.9 c 704
2004-03-01 09:56:23 C 15 15 25.46 +12 27 20.9 18.0 c 704
2004-03-07 08:37:50 C 15 17 27.42 +14 12 02.0 c H41
2004-03-07 08:44:24 C 15 17 27.61 +14 12 07.1 c H41
2004-03-08 09:11:45 C 15 17 40.08 +14 30 49.8 r H41
2004-03-08 09:18:46 C 15 17 40.07 +14 30 53.9 r H41
2004-03-08 09:21:27 C 15 17 40.02 +14 30 56.8 r H41
2004-03-15 08:43:29 C 15 17 54.95 +16 43 55.1 c H41
2004-03-15 08:46:48 C 15 17 54.86 +16 43 58.8 c H41
2004-03-16 09:30:09 C 15 17 46.03 +17 04 14.1 r H41
2004-03-16 09:34:26 C 15 17 45.92 +17 04 16.5 r H41
2004-03-16 09:38:45 C 15 17 45.92 +17 04 19.7 r H41
2004-03-16 09:41:45 C 15 17 45.75 +17 04 21.3 r H41
2004-03-19 11:53:14 C 15 17 01.82 +18 05 44.2 17.4 c 644
2004-03-19 12:05:50 C 15 17 01.64 +18 05 54.8 17.8 c 644
2004-03-19 12:18:31 C 15 17 01.45 +18 06 05.2 17.4 c 644
2004-03-20 08:41:03 C 15 16 44.83 +18 23 03.0 c H41
2004-03-20 08:44:07 C 15 16 44.77 +18 23 05.3 c H41
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)