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
2007-04-11 22:46:54 C 09 30 54.10 +36 22 07.6 c A24
2007-04-11 23:03:49 C 09 30 54.62 +36 22 03.5 c A24
2007-04-11 23:05:17 C 09 30 54.68 +36 22 03.0 c A24
2007-04-11 23:24:11 C 09 30 55.28 +36 21 58.4 c A24
2007-04-11 23:44:32 C 09 30 55.97 +36 21 53.5 c A24
2007-04-12 00:03:27 C 09 30 56.57 +36 21 48.4 c A24
2007-04-12 00:04:53 C 09 30 56.65 +36 21 48.6 c A24
2007-04-14 21:28:25 C 09 33 23.19 +36 04 36.7 c A24
2007-04-14 21:29:51 C 09 33 23.23 +36 04 35.2 c A24
2007-04-16 05:10:08 C 09 34 34.67 +35 56 11.8 r H45
2007-04-16 05:11:49 C 09 34 34.74 +35 56 11.2 r H45
2007-04-16 05:13:05 C 09 34 34.77 +35 56 11.2 r H45
2007-04-16 05:14:21 C 09 34 34.79 +35 56 10.6 r H45
2007-04-16 05:16:33 C 09 34 34.87 +35 56 10.1 r H45
2007-04-19 04:03:27 C 09 37 25.24 +35 36 13.5 r 703
2007-04-19 04:12:43 C 09 37 25.60 +35 36 10.1 r 703
2007-04-19 04:22:04 C 09 37 25.96 +35 36 07.8 r 703
2007-04-19 04:31:22 C 09 37 26.36 +35 36 04.7 r 703
2007-04-20 04:15:34 C 09 38 26.36 +35 29 02.4 18.2 c 704
2007-04-20 04:28:05 C 09 38 26.94 +35 28 58.7 18.3 c 704
2007-04-20 04:40:35 C 09 38 27.46 +35 28 55.0 18.5 c 704
2007-04-20 04:53:20 C 09 38 28.04 +35 28 50.4 18.0 c 704
2007-04-27 03:58:33 C 09 46 08.68 +34 34 56.4 18.6 c 704
2007-04-27 04:10:48 C 09 46 09.19 +34 34 52.3 19.0 c 704
2007-04-27 04:23:05 C 09 46 09.69 +34 34 48.5 18.6 c 704
2007-04-27 04:35:24 C 09 46 10.22 +34 34 44.3 18.0 c 704
2007-04-27 04:47:40 C 09 46 10.83 +34 34 40.3 17.9 c 704
2007-05-07 03:45:21 C 09 58 42.59 +33 06 26.7 19.0 c 704
2007-05-07 03:58:20 C 09 58 43.22 +33 06 21.4 18.7 c 704
2007-05-07 04:10:51 C 09 58 43.98 +33 06 17.2 18.8 c 704
2007-06-07 04:32:51 C 10 44 55.14 +27 31 42.7 r 703
2007-06-07 04:41:22 C 10 44 55.57 +27 31 37.5 r 703
2007-06-07 04:49:50 C 10 44 56.22 +27 31 33.4 r 703
2007-06-07 04:58:22 C 10 44 56.83 +27 31 28.7 r 703
2007-06-24 04:14:40 C 11 12 43.45 +24 02 03.4 r 703
2007-06-24 04:23:57 C 11 12 44.10 +24 01 57.6 r 703
2007-06-24 04:33:12 C 11 12 44.78 +24 01 53.4 r 703
2007-06-24 04:42:29 C 11 12 45.43 +24 01 50.0 r 703
2008-12-07 12:43:56 C 13 16 17.79 +03 46 09.8 r 703
2008-12-07 12:50:15 C 13 16 18.30 +03 46 11.2 r 703
2008-12-07 12:59:55 C 13 16 19.09 +03 46 07.6 r 703
2008-12-07 13:06:10 C 13 16 19.56 +03 46 08.4 r 703
2008-12-31 12:37:46 C 14 01 56.82 +03 28 18.0 r 703
2008-12-31 12:49:46 C 14 01 57.57 +03 28 20.8 r 703
2008-12-31 13:01:36 C 14 01 58.51 +03 28 20.7 r 703
2008-12-31 13:13:27 C 14 01 59.37 +03 28 21.9 r 703
2009-03-01 10:31:24 C 15 17 30.39 +12 09 52.4 17.5 c 704
2009-03-01 10:47:52 C 15 17 30.63 +12 10 03.3 17.9 c 704
2009-03-01 11:04:57 C 15 17 31.01 +12 10 14.6 18.1 c 704
2009-03-01 11:49:29 C 15 17 31.77 +12 10 46.2 r 703
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)