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
1996-08-02 10:02:51 C 00 48 09.72 -15 33 00.5 c 608
1996-08-10 14:23:45 C 03 05 09.53 -31 32 44.1 c 566
1996-08-10 14:37:03 C 03 05 18.81 -31 33 28.6 c 566
1996-08-10 14:49:23 C 03 05 27.43 -31 34 09.9 c 566
1996-08-12 14:22:25 C 03 38 46.94 -33 46 40.2 c 566
1996-08-12 14:35:38 C 03 38 55.60 -33 47 11.8 c 566
1996-08-12 14:47:59 C 03 39 03.70 -33 47 41.1 c 566
1996-11-01 17:59:35 C 09 26 28.03 -21 12 22.5 413
1996-11-01 18:02:20 C 09 26 28.26 -21 12 21.2 413
1996-12-15 04:42:59 C 10 36 45.06 -10 26 56.4 z 046
1996-12-15 04:45:10 C 10 36 45.15 -10 26 54.3 z 046
1996-12-15 04:47:24 C 10 36 45.23 -10 26 52.5 z 046
1996-12-15 04:49:41 C 10 36 45.32 -10 26 50.5 z 046
1996-12-16 03:15:28 C 10 37 37.08 -10 05 49.5 z 118
1996-12-16 03:23:55 C 10 37 37.37 -10 05 41.6 z 118
1997-02-05 22:34:33 C 10 07 13.63 +23 49 26.1 z 962
1997-02-05 22:42:30 C 10 07 12.99 +23 49 39.7 z 962
1997-02-05 22:43:57 C 10 07 12.88 +23 49 42.6 z 962
1997-02-05 22:49:18 C 10 07 12.42 +23 49 51.6 z 962
1997-02-05 22:55:43 C 10 07 11.92 +23 50 03.1 z 962
1997-02-05 23:07:03 C 10 07 10.98 +23 50 22.6 z 962
1997-02-10 21:50:43 C 09 57 45.89 +27 03 14.5 z 962
1997-02-10 22:08:06 C 09 57 44.47 +27 03 40.8 z 962
1997-02-10 22:22:30 C 09 57 43.29 +27 04 03.0 z 962
1997-02-10 22:25:52 C 09 57 42.99 +27 04 08.1 z 962
1997-02-11 12:45:46 C 09 56 33.93 +27 25 38.1 c 608
1997-02-11 12:55:48 C 09 56 33.04 +27 25 51.9 c 608
1997-02-17 21:18:39 C 09 45 00.74 +30 46 26.9 15.5 z 629
1997-02-17 21:20:21 C 09 45 00.54 +30 46 28.6 15.3 z 629
1997-02-17 21:25:35 C 09 45 00.18 +30 46 34.9 15.5 z 629
1997-02-17 21:31:05 C 09 44 59.74 +30 46 41.1 15.7 z 629
1997-02-28 00:13:20 C 09 29 49.89 +34 27 04.9 z 118
1997-02-28 00:17:21 C 09 29 49.68 +34 27 07.6 z 118
1997-03-09 20:05:34 C 09 20 34.93 +36 22 40.2 z 631
1997-03-09 22:11:34 C 09 20 31.18 +36 23 20.9 z 631
1997-03-10 20:30:08 C 09 19 57.60 +36 30 09.7 z 631
1997-03-10 21:40:45 C 09 19 55.69 +36 30 30.9 z 631
1997-03-15 06:50:37 C 09 17 58.17 +36 54 47.8 i 711
1997-03-15 07:09:39 C 09 17 57.88 +36 54 50.7 i 711
1997-03-16 06:04:34 C 09 17 41.63 +36 58 34.5 i 711
1997-03-16 06:21:00 C 09 17 41.40 +36 58 36.8 i 711
1997-05-17 13:38:14 C 10 11 42.41 +31 13 33.0 z 381
1997-05-17 13:41:15 C 10 11 42.58 +31 13 32.0 z 381
1999-02-22 12:28:24 C 15 10 01.59 +10 30 32.5 z 711
1999-02-22 12:42:08 C 15 10 01.97 +10 30 41.0 z 711
1999-03-17 17:53:06 C 15 16 29.43 +17 23 12.4 z 402
1999-03-17 17:55:24 C 15 16 29.41 +17 23 14.2 z 402
1999-03-17 17:57:42 C 15 16 29.41 +17 23 16.1 z 402
1999-04-09 02:40:14 C 15 00 10.68 +24 35 49.6 b 118
1999-04-09 02:47:41 C 15 00 10.31 +24 35 54.8 b 118
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)