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
2017-01-31 14:44:31 C 10 48 46.507 +19 27 59.50 L F51
2017-02-01 08:03:07 C 10 47 41.78 +19 59 02.8 q 703
2017-02-01 08:09:38 C 10 47 41.35 +19 59 14.4 q 703
2017-02-01 08:16:09 C 10 47 40.89 +19 59 26.7 q 703
2017-02-01 08:22:39 C 10 47 40.45 +19 59 38.1 q 703
2017-02-01 21:08:11 C 10 46 51.34 +20 22 23.2 S 094
2017-02-01 22:38:58 C 10 46 45.12 +20 25 05.7 S 094
2017-02-02 00:20:50 C 10 46 38.06 +20 28 08.1 S 094
2017-02-02 01:52:44 C 10 46 31.73 +20 30 51.0 S 094
2017-02-05 10:33:22 C 10 41 01.71 +22 51 59.8 L T05
2017-02-05 11:19:50 C 10 40 58.18 +22 53 19.6 L T05
2017-02-05 11:32:57 C 10 40 57.19 +22 53 42.2 L T05
2017-02-05 11:51:34 C 10 40 55.78 +22 54 14.0 L T05
2017-02-05 19:36:08 C 10 40 23.31 +23 07 14.6 u 557
2017-02-05 20:19:25 C 10 40 20.16 +23 08 28.9 u 557
2017-02-05 20:59:36 C 10 40 17.22 +23 09 37.7 u 557
2017-02-06 06:51:28 C 10 39 34.41 +23 26 25.4 q H15
2017-02-06 07:05:19 C 10 39 33.36 +23 26 49.0 q H15
2017-02-06 07:19:08 C 10 39 32.30 +23 27 12.4 q H15
2017-02-08 05:30:52 C 10 36 09.16 +24 43 46.2 q 703
2017-02-08 05:37:33 C 10 36 08.63 +24 43 58.0 q 703
2017-02-08 05:44:09 C 10 36 08.14 +24 44 08.8 q 703
2017-02-08 05:50:51 C 10 36 07.68 +24 44 18.7 q 703
2017-02-08 10:41:00 C 10 35 44.62 +24 52 12.4 q G96
2017-02-08 10:47:08 C 10 35 44.14 +24 52 22.2 q G96
2017-02-08 10:54:23 C 10 35 43.57 +24 52 33.9 q G96
2017-02-08 11:01:41 C 10 35 43.00 +24 52 45.6 q G96
2017-02-09 09:56:13 C 10 34 00.57 +25 29 34.9 L T05
2017-02-09 10:36:40 C 10 33 57.32 +25 30 39.9 L T05
2017-02-09 10:43:19 C 10 33 56.77 +25 30 50.2 L T05
2017-02-09 10:59:30 C 10 33 55.47 +25 31 16.0 L T05
2017-02-09 11:28:20 C 10 33 53.14 +25 32 02.0 L T05
2017-02-10 05:32:00 C 10 32 30.98 +26 00 20.6 u H21
2017-02-10 05:33:57 C 10 32 30.82 +26 00 23.7 u H21
2017-02-10 05:35:55 C 10 32 30.67 +26 00 26.9 u H21
2017-02-10 05:37:52 C 10 32 30.50 +26 00 29.7 u H21
2017-02-10 05:39:50 C 10 32 30.35 +26 00 33.0 u H21
2017-02-10 05:41:47 C 10 32 30.20 +26 00 36.0 u H21
2017-02-10 05:43:45 C 10 32 30.02 +26 00 38.9 u H21
2017-02-10 05:45:43 C 10 32 29.88 +26 00 42.1 u H21
2017-02-10 05:47:40 C 10 32 29.72 +26 00 45.1 u H21
2017-02-10 05:49:38 C 10 32 29.57 +26 00 48.2 u H21
2017-02-10 05:51:35 C 10 32 29.41 +26 00 51.3 u H21
2017-02-10 05:53:32 C 10 32 29.25 +26 00 54.2 u H21
2017-02-13 06:25:29 C 10 26 52.63 +27 49 43.2 u H21
2017-02-13 06:27:26 C 10 26 52.48 +27 49 46.2 u H21
2017-02-13 06:29:24 C 10 26 52.33 +27 49 49.0 u H21
2017-02-13 06:31:22 C 10 26 52.17 +27 49 51.9 u H21
2017-02-13 06:33:19 C 10 26 52.00 +27 49 54.7 u H21
2017-02-13 06:35:17 C 10 26 51.85 +27 49 57.5 u H21
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)