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
2012-04-20 22:52:08 C 09 44 29.10 +35 24 27.7 c A24
2012-04-20 22:53:11 C 09 44 29.16 +35 24 27.2 c A24
2012-04-21 00:07:37 C 09 44 32.20 +35 24 04.0 c A24
2012-04-21 00:08:40 C 09 44 32.19 +35 24 02.7 c A24
2012-04-21 00:09:42 C 09 44 32.20 +35 24 01.9 c A24
2012-04-21 00:10:44 C 09 44 32.27 +35 24 01.9 c A24
2012-04-27 06:26:10 C 09 51 11.70 +34 33 41.9 r 703
2012-04-27 06:38:24 C 09 51 12.24 +34 33 35.8 r 703
2012-04-27 06:50:41 C 09 51 12.85 +34 33 32.4 r 703
2012-04-27 07:02:59 C 09 51 13.39 +34 33 28.0 r 703
2012-04-27 19:02:28 C 09 51 47.70 +34 29 11.4 089
2012-04-27 19:04:31 C 09 51 47.79 +34 29 10.6 089
2012-04-27 19:06:35 C 09 51 47.85 +34 29 10.1 089
2012-04-27 19:08:39 C 09 51 47.94 +34 29 09.5 089
2012-04-27 19:10:43 C 09 51 48.08 +34 29 08.6 089
2012-04-27 19:12:47 C 09 51 48.17 +34 29 07.9 089
2012-04-27 19:14:51 C 09 51 48.29 +34 29 06.8 089
2012-04-27 19:16:55 C 09 51 48.36 +34 29 07.5 089
2012-04-27 19:21:03 C 09 51 48.52 +34 29 04.5 089
2012-04-27 19:25:11 C 09 51 48.77 +34 29 03.2 089
2012-04-27 19:27:15 C 09 51 48.80 +34 29 02.6 089
2012-04-27 19:31:23 C 09 51 49.03 +34 29 01.0 089
2012-05-02 21:05:22 C 09 57 50.02 +33 44 03.5 c A24
2012-05-02 21:07:26 C 09 57 50.11 +33 44 03.0 c A24
2012-05-02 22:16:00 C 09 57 53.58 +33 43 35.9 c A24
2012-05-02 22:19:06 C 09 57 53.69 +33 43 34.2 c A24
2012-05-03 20:20:19 C 09 59 02.14 +33 35 06.9 c A24
2012-05-03 20:22:24 C 09 59 02.29 +33 35 06.2 c A24
2012-05-03 21:31:15 C 09 59 05.76 +33 34 39.3 c A24
2012-05-03 21:33:19 C 09 59 05.86 +33 34 38.3 c A24
2012-05-18 04:17:04 C 10 18 18.18 +31 11 37.6 r 703
2012-05-18 04:27:42 C 10 18 18.79 +31 11 33.2 r 703
2012-05-18 04:38:28 C 10 18 19.58 +31 11 27.9 r 703
2012-05-18 04:49:09 C 10 18 20.08 +31 11 23.2 r 703
2012-05-28 20:49:45 C 10 34 06.29 +29 13 04.8 c A24
2012-05-28 20:51:50 C 10 34 06.47 +29 13 03.6 c A24
2012-05-28 21:13:09 C 10 34 07.80 +29 12 53.4 c A24
2012-05-28 21:36:22 C 10 34 09.27 +29 12 41.4 c A24
2012-05-28 21:58:22 C 10 34 10.58 +29 12 28.6 c A24
2012-06-19 03:46:03 C 11 07 48.25 +24 55 36.5 r 703
2012-06-19 04:03:33 C 11 07 49.36 +24 55 27.1 r 703
2012-06-19 04:12:19 C 11 07 50.01 +24 55 21.6 r 703
2014-01-07 11:41:28 C 14 15 41.22 +03 35 46.9 R G45
2014-01-07 12:16:50 C 14 15 43.71 +03 35 51.6 R G45
2014-01-07 12:35:02 C 14 15 45.00 +03 35 53.1 R G45
2014-01-07 12:37:27 C 14 15 45.14 +03 35 53.4 R G45
2014-01-07 12:54:06 C 14 15 46.33 +03 35 55.5 R G45
2014-02-06 08:53:16 C 14 59 54.41 +06 41 17.7 u 807
2014-02-06 08:57:39 C 14 59 54.62 +06 41 19.7 u 807
2014-02-06 09:02:24 C 14 59 54.86 +06 41 21.7 u 807
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)