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
1996-06-15 01:28:13 C 20 58 29.13 +12 04 53.4 z 118
1996-06-15 01:30:46 C 20 58 29.30 +12 04 54.0 z 118
1996-07-14 06:06:00 22 11 57.30 +09 01 28.0 z 710
1996-07-14 07:55:16 C 22 12 14.32 +08 59 18.0 z 801
1996-07-14 07:58:59 C 22 12 14.93 +08 59 13.5 z 801
1996-07-14 22:37:54 C 22 14 51.10 +08 40 53.3 z 117
1996-07-14 22:44:23 C 22 14 52.22 +08 40 44.9 z 117
1996-07-15 05:29:30 22 16 05.55 +08 32 02.8 z 710
1996-07-16 21:59:00 C 22 23 48.53 +07 33 32.8 z 117
1996-07-16 22:09:03 C 22 23 50.48 +07 33 17.1 z 117
1996-07-18 06:31:30 C 22 30 33.76 +06 39 06.4 z 801
1996-07-18 06:33:36 C 22 30 34.21 +06 39 03.0 z 801
1996-07-18 22:14:31 C 22 34 03.28 +06 09 59.2 z 117
1996-07-18 22:20:57 C 22 34 04.72 +06 09 47.0 z 117
1996-07-19 20:14:57 C 22 39 10.06 +05 26 10.2 z 094
1996-07-19 20:32:57 C 22 39 14.25 +05 25 33.0 z 094
1996-07-19 21:40:14 C 22 39 30.43 +05 23 09.6 z 117
1996-07-19 21:50:04 C 22 39 32.71 +05 22 48.9 z 117
1996-07-20 00:57:08 C 22 40 15.68 +05 16 19.0 z 094
1996-07-20 01:12:07 C 22 40 19.19 +05 15 47.0 z 094
1996-07-20 21:30:42 C 22 45 24.88 +04 30 47.0 z 117
1996-07-20 21:36:39 C 22 45 26.38 +04 30 33.5 z 117
1996-07-21 10:02:09 C 22 48 38.25 +04 01 26.5 i 711
1996-07-21 10:06:09 C 22 48 39.27 +04 01 16.9 i 711
1996-07-21 20:50:34 C 22 51 34.86 +03 34 30.3 z 117
1996-07-21 20:58:07 C 22 51 36.88 +03 34 11.7 z 117
1996-07-22 00:51:00 C 22 52 39.48 +03 24 19.9 z 611
1996-07-22 01:04:00 C 22 52 42.95 +03 23 46.9 z 611
1996-07-25 00:38:45 C 23 14 40.14 -00 07 17.5 z 967
1996-07-25 01:20:50 C 23 14 54.07 -00 09 38.9 z 967
1996-07-25 01:26:07 C 23 14 55.86 -00 09 57.0 z 967
1996-07-25 01:33:31 C 23 14 58.32 -00 10 22.1 z 967
1996-07-25 01:44:11 C 23 15 01.84 -00 10 57.9 z 967
1996-07-26 23:12:08 C 23 31 39.11 -02 57 10.5 z 557
1996-07-26 23:37:26 C 23 31 48.77 -02 58 50.7 z 557
1996-07-27 00:01:27 C 23 31 57.96 -03 00 25.8 z 557
1996-07-27 00:09:14 C 23 32 01.18 -03 00 57.7 z 605
1996-07-27 00:13:11 C 23 32 02.66 -03 01 13.2 z 605
1996-07-27 00:21:14 C 23 32 05.77 -03 01 45.3 z 605
1996-07-27 00:26:22 C 23 32 07.72 -03 02 05.7 z 605
1996-07-27 00:44:21 C 23 32 14.37 -03 03 16.3 z 557
1996-07-27 01:58:50 C 23 32 42.84 -03 08 12.4 z 557
1996-07-31 01:17:05 C 00 16 08.91 -10 26 25.0 z 046
1996-07-31 01:18:17 C 00 16 09.52 -10 26 31.2 z 046
1996-07-31 01:20:36 C 00 16 10.69 -10 26 43.2 z 046
1996-07-31 10:07:25 C 00 20 51.58 -11 12 01.8 c 608
1996-08-01 13:14:18 C 00 35 50.86 -13 37 53.8 625
1996-08-01 14:24:29 C 00 36 29.76 -13 44 18.5 625
1996-08-02 10:00:04 C 00 48 08.07 -15 32 44.7 c 608
1996-08-02 10:01:29 C 00 48 08.91 -15 32 52.6 c 608
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)