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
2007-03-17 04:32:47 C 09 23 21.73 +37 08 50.1 r 703
2007-03-17 04:45:27 C 09 23 21.51 +37 08 52.1 r 703
2007-03-21 17:21:27 C 09 22 25.28 +37 19 17.2 r 168
2007-03-21 17:24:40 C 09 22 25.23 +37 19 17.8 r 168
2007-03-21 17:26:15 C 09 22 25.35 +37 19 17.9 r 168
2007-03-21 18:19:16 C 09 22 25.02 +37 19 20.0 r 168
2007-03-21 18:24:40 C 09 22 24.96 +37 19 19.9 r 168
2007-03-21 19:54:50 C 09 22 24.45 +37 19 23.8 r 168
2007-03-21 21:58:51 C 09 22 23.94 +37 19 28.4 r 168
2007-03-21 23:27:11 C 09 22 23.66 +37 19 30.2 r 168
2007-03-25 01:36:24 C 09 22 25.867 +37 20 36.0 r 084
2007-03-25 01:39:32 C 09 22 25.868 +37 20 35.7 r 084
2007-03-26 19:29:34 C 09 22 40.189 +37 19 28.7 r 084
2007-03-26 19:32:43 C 09 22 40.201 +37 19 28.8 r 084
2007-03-29 00:18:06 C 09 23 09.816 +37 16 18.5 r 084
2007-03-29 00:21:15 C 09 23 09.809 +37 16 18.4 r 084
2007-04-01 04:49:03 C 09 24 16.65 +37 08 53.7 o 644
2007-04-01 05:18:42 C 09 24 17.08 +37 08 50.1 o 644
2007-04-01 05:49:40 C 09 24 17.54 +37 08 46.2 o 644
2007-04-02 21:49:07 C 09 25 02.63 +37 03 28.5 o A32
2007-04-02 22:02:39 C 09 25 02.88 +37 03 26.5 o A32
2007-04-02 22:16:11 C 09 25 03.14 +37 03 24.6 o A32
2007-04-05 22:28:01 C 09 26 40.958 +36 51 54.0 r 084
2007-04-05 22:31:10 C 09 26 41.068 +36 51 53.6 r 084
2007-04-06 19:47:54 C 09 27 14.07 +36 48 06.2 c A24
2007-04-06 20:09:42 C 09 27 14.62 +36 48 02.1 c A24
2007-04-06 20:11:09 C 09 27 14.66 +36 48 01.7 c A24
2007-04-06 20:33:27 C 09 27 15.19 +36 47 57.5 c A24
2007-04-06 20:57:13 C 09 27 15.78 +36 47 53.0 c A24
2007-04-06 21:19:32 C 09 27 16.31 +36 47 48.9 c A24
2007-04-06 21:20:59 C 09 27 16.37 +36 47 48.4 c A24
2007-04-06 22:36:43 C 09 27 18.23 +36 47 33.8 c A24
2007-04-06 22:51:29 C 09 27 18.62 +36 47 30.8 c A24
2007-04-06 22:52:58 C 09 27 18.64 +36 47 30.5 c A24
2007-04-06 23:08:09 C 09 27 19.00 +36 47 27.6 c A24
2007-04-06 23:16:50 C 09 27 19.260 +36 47 22.9 r 084
2007-04-06 23:19:59 C 09 27 19.307 +36 47 22.4 r 084
2007-04-08 04:21:19 C 09 28 07.16 +36 41 51.2 18.5 c 704
2007-04-08 04:34:56 C 09 28 07.72 +36 41 50.0 19.1 c 704
2007-04-08 04:48:50 C 09 28 08.04 +36 41 46.3 19.0 c 704
2007-04-08 05:02:32 C 09 28 08.33 +36 41 44.9 19.0 c 704
2007-04-08 05:16:12 C 09 28 08.72 +36 41 40.1 19.2 c 704
2007-04-08 20:25:51 C 09 28 34.93 +36 38 34.2 c A24
2007-04-08 20:27:17 C 09 28 34.94 +36 38 33.7 c A24
2007-04-08 20:48:20 C 09 28 35.53 +36 38 29.5 c A24
2007-04-08 21:10:48 C 09 28 36.13 +36 38 24.8 c A24
2007-04-08 21:31:50 C 09 28 36.71 +36 38 20.6 c A24
2007-04-08 21:33:16 C 09 28 36.76 +36 38 20.2 c A24
2007-04-08 21:53:39 C 09 28 37.32 +36 38 15.4 c A24
2007-04-08 21:55:04 C 09 28 37.45 +36 38 15.7 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)