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
2012-03-05 19:15:14 C 09 39 36.57 +35 55 24.5 u C73
2012-03-05 19:16:26 C 09 39 36.52 +35 55 25.0 u C73
2012-03-05 19:17:37 C 09 39 36.47 +35 55 25.8 u C73
2012-03-05 19:19:56 C 09 39 36.34 +35 55 26.7 u C73
2012-03-05 19:21:08 C 09 39 36.28 +35 55 27.4 u C73
2012-03-05 19:23:27 C 09 39 36.17 +35 55 28.5 u C73
2012-03-05 19:24:37 C 09 39 36.10 +35 55 29.1 u C73
2012-03-13 22:54:10 C 09 32 40.50 +37 03 23.5 c A24
2012-03-13 22:55:12 C 09 32 40.47 +37 03 23.8 c A24
2012-03-14 00:01:13 C 09 32 38.63 +37 03 37.8 c A24
2012-03-14 00:02:16 C 09 32 38.58 +37 03 38.3 c A24
2012-03-14 22:30:53 C 09 32 06.35 +37 08 23.0 c A24
2012-03-14 22:31:55 C 09 32 06.33 +37 08 23.1 c A24
2012-03-14 23:40:40 C 09 32 04.57 +37 08 36.0 c A24
2012-03-14 23:41:42 C 09 32 04.55 +37 08 36.2 c A24
2012-03-19 22:22:24 C 09 30 04.63 +37 24 44.1 16.9 o C60
2012-03-19 22:25:56 C 09 30 04.60 +37 24 44.7 16.9 o C60
2012-03-19 22:30:54 C 09 30 04.52 +37 24 45.1 16.8 o C60
2012-03-19 22:34:21 C 09 30 04.43 +37 24 45.1 16.8 o C60
2012-03-19 22:37:49 C 09 30 04.46 +37 24 45.7 17.0 o C60
2012-03-19 22:44:17 C 09 30 04.34 +37 24 46.4 17.1 o C60
2012-03-19 22:51:12 C 09 30 04.26 +37 24 46.6 16.8 o C60
2012-03-19 22:54:40 C 09 30 04.22 +37 24 47.0 17.1 o C60
2012-03-19 22:58:07 C 09 30 04.16 +37 24 47.0 17.1 o C60
2012-03-19 23:01:33 C 09 30 04.11 +37 24 47.3 16.8 o C60
2012-03-19 23:05:01 C 09 30 04.11 +37 24 47.8 17.1 o C60
2012-03-19 23:08:28 C 09 30 04.04 +37 24 48.0 16.8 o C60
2012-03-19 23:15:24 C 09 30 03.93 +37 24 48.3 17.1 o C60
2012-03-21 23:02:18 C 09 29 39.09 +37 27 33.1 c A24
2012-03-21 23:03:22 C 09 29 39.09 +37 27 33.2 c A24
2012-03-26 20:38:01 C 09 29 31.78 +37 26 30.5 c A24
2012-03-26 20:39:03 C 09 29 31.83 +37 26 30.6 c A24
2012-03-26 21:45:01 C 09 29 31.92 +37 26 26.9 c A24
2012-03-26 21:46:03 C 09 29 31.92 +37 26 26.9 c A24
2012-04-09 00:00:57 C 09 34 36.60 +36 41 44.8 c J19
2012-04-09 00:10:22 C 09 34 36.87 +36 41 43.1 c J19
2012-04-09 00:19:45 C 09 34 37.13 +36 41 41.2 c J19
2012-04-09 00:29:10 C 09 34 37.32 +36 41 38.9 c J19
2012-04-09 00:38:34 C 09 34 37.56 +36 41 35.9 c J19
2012-04-09 00:47:58 C 09 34 37.85 +36 41 33.8 c J19
2012-04-09 00:57:23 C 09 34 38.05 +36 41 32.6 c J19
2012-04-09 01:06:48 C 09 34 38.36 +36 41 29.6 c J19
2012-04-09 01:16:11 C 09 34 38.58 +36 41 28.3 c J19
2012-04-11 04:14:05 C 09 36 05.53 +36 29 53.6 17.6 c 704
2012-04-11 05:04:20 C 09 36 06.92 +36 29 41.1 19.2 c 704
2012-04-11 05:20:53 C 09 36 07.36 +36 29 37.1 18.4 c 704
2012-04-15 06:34:53 C 09 39 16.996 +36 04 42.79 L F51
2012-04-15 06:52:06 C 09 39 17.555 +36 04 38.13 L F51
2012-04-20 22:50:04 C 09 44 29.05 +35 24 28.1 c A24
2012-04-20 22:51:06 C 09 44 29.06 +35 24 28.2 c A24
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)