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
2019-03-26 19:36:33 C 15 26 32.11 +18 59 09.4 q D29
2019-03-26 19:56:54 C 15 26 31.68 +18 59 26.1 q D29
2019-03-26 20:17:17 C 15 26 31.24 +18 59 42.6 q D29
2019-03-27 13:08:09 C 15 26 10.79 +19 13 30.6 V T08
2019-03-27 13:16:38 C 15 26 10.59 +19 13 38.0 V T08
2019-03-27 13:31:10 C 15 26 10.26 +19 13 49.8 V T08
2019-03-27 13:44:57 C 15 26 09.94 +19 14 00.5 V T08
2019-03-29 12:24:32 C 15 25 05.54 +19 52 04.5 V T05
2019-03-29 12:45:41 C 15 25 04.96 +19 52 21.8 V T05
2019-03-29 12:50:24 C 15 25 04.84 +19 52 25.4 V T05
2019-03-29 12:59:04 C 15 25 04.59 +19 52 32.4 V T05
2019-03-29 12:59:44 C 15 25 04.59 +19 52 33.1 V T05
2019-03-29 13:13:01 C 15 25 04.22 +19 52 44.0 V T05
2019-03-29 13:13:41 C 15 25 04.20 +19 52 44.6 V T05
2019-03-29 13:25:05 C 15 25 03.89 +19 52 53.7 V T05
2019-03-31 09:58:25 C 15 23 51.94 +20 29 00.3 V 703
2019-03-31 10:06:10 C 15 23 51.71 +20 29 06.9 V 703
2019-03-31 10:13:53 C 15 23 51.46 +20 29 12.9 V 703
2019-03-31 10:21:32 C 15 23 51.21 +20 29 19.0 V 703
2019-03-31 12:38:18 C 15 23 47.38 +20 31 11.2 V T08
2019-03-31 12:39:50 C 15 23 47.31 +20 31 12.4 V T08
2019-03-31 12:56:40 C 15 23 46.80 +20 31 25.9 V T08
2019-03-31 13:00:33 C 15 23 46.70 +20 31 28.8 V T08
2019-03-31 13:16:30 C 15 23 46.14 +20 31 42.1 V T08
2019-03-31 13:29:35 C 15 23 45.73 +20 31 52.4 V T08
2019-03-31 13:30:15 C 15 23 45.72 +20 31 53.5 V T08
2019-04-01 18:50:29 C 15 22 52.50 +20 55 27.6 q D29
2019-04-01 19:10:51 C 15 22 51.82 +20 55 43.9 q D29
2019-04-01 19:31:13 C 15 22 51.13 +20 56 00.3 q D29
2019-04-02 12:47:02 C 15 22 17.87 +21 09 50.0 V T05
2019-04-02 13:03:33 C 15 22 17.29 +21 10 03.4 V T05
2019-04-02 13:22:52 C 15 22 16.60 +21 10 18.6 V T05
2019-04-02 13:34:52 C 15 22 16.17 +21 10 28.3 V T05
2019-04-03 09:41:50 C 15 21 35.43 +21 26 25.8 V G96
2019-04-03 09:49:13 C 15 21 35.16 +21 26 31.5 V G96
2019-04-03 09:56:33 C 15 21 34.89 +21 26 37.4 V G96
2019-04-03 10:03:57 C 15 21 34.62 +21 26 43.3 V G96
2019-04-04 09:41:15 C 15 20 44.13 +21 45 20.7 V 703
2019-04-04 09:48:53 C 15 20 43.82 +21 45 26.9 V 703
2019-04-04 09:56:29 C 15 20 43.53 +21 45 32.6 V 703
2019-04-04 10:04:01 C 15 20 43.24 +21 45 38.6 V 703
2019-04-04 12:32:54 C 15 20 37.85 +21 47 37.2 V T08
2019-04-04 12:46:26 C 15 20 37.32 +21 47 47.5 V T08
2019-04-04 12:56:20 C 15 20 36.91 +21 47 55.6 V T08
2019-04-04 13:16:45 C 15 20 36.13 +21 48 11.5 V T08
2019-04-04 23:50:24 C 15 20 12.53 +21 56 21.3 u A98
2019-04-05 00:02:19 C 15 20 12.11 +21 56 32.4 u A98
2019-04-05 00:04:42 C 15 20 11.95 +21 56 33.7 u A98
2019-04-05 14:40:48 C 15 19 38.136 +22 07 58.92 U F51
2019-04-05 14:51:19 C 15 19 37.703 +22 08 07.03 U F51
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)