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
2007-01-27 09:07:06 C 10 32 40.40 +16 12 01.7 o 699
2007-01-27 09:32:07 C 10 32 38.74 +16 12 51.0 o 699
2007-01-28 01:55:59 C 10 31 36.16 +16 44 56.4 c A24
2007-01-28 01:57:26 C 10 31 36.06 +16 44 59.2 c A24
2007-01-28 21:30:31 C 10 30 20.67 +17 23 08.2 c A24
2007-01-28 21:31:58 C 10 30 20.59 +17 23 10.8 c A24
2007-01-29 04:57:55 C 10 29 49.64 +17 37 34.5 15.0 r 084
2007-01-29 05:00:04 C 10 29 49.50 +17 37 38.6 15.2 r 084
2007-01-29 12:52:50 C 10 29 17.70 +17 53 04.6 r G96
2007-01-29 12:58:28 C 10 29 17.30 +17 53 15.4 r G96
2007-01-29 13:04:11 C 10 29 16.90 +17 53 26.4 r G96
2007-01-29 13:09:47 C 10 29 16.51 +17 53 37.3 r G96
2007-01-29 22:56:08 C 10 28 38.46 +18 12 30.4 c A24
2007-01-29 22:57:36 C 10 28 38.36 +18 12 33.2 c A24
2007-01-29 23:14:17 C 10 28 37.16 +18 13 05.5 c A24
2007-01-29 23:30:59 C 10 28 35.97 +18 13 38.0 c A24
2007-01-29 23:47:40 C 10 28 34.78 +18 14 10.6 c A24
2007-01-29 23:49:08 C 10 28 34.68 +18 14 13.2 c A24
2007-01-31 01:18:24 C 10 26 48.76 +19 03 10.8 15.0 r 084
2007-01-31 01:20:33 C 10 26 48.59 +19 03 15.0 15.0 r 084
2007-01-31 22:54:08 C 10 25 17.80 +19 44 18.8 15.2 r 084
2007-01-31 22:56:18 C 10 25 17.63 +19 44 23.2 15.0 r 084
2007-02-01 01:02:20 C 10 25 08.29 +19 48 21.9 14.8 r 084
2007-02-01 01:04:29 C 10 25 08.12 +19 48 26.0 15.0 r 084
2007-02-02 00:38:37 C 10 23 26.24 +20 32 46.9 15.4 r 084
2007-02-02 00:40:46 C 10 23 26.09 +20 32 51.1 15.5 r 084
2007-02-04 23:02:06 C 10 18 11.48 +22 41 31.3 14.3 o B24
2007-02-04 23:03:31 C 10 18 11.31 +22 41 33.6 14.2 o B24
2007-02-04 23:07:16 C 10 18 10.99 +22 41 41.2 14.9 o B24
2007-02-04 23:11:23 C 10 18 10.75 +22 41 47.1 14.4 o B24
2007-02-04 23:12:04 C 10 18 10.62 +22 41 48.4 14.5 o B24
2007-02-04 23:13:52 C 10 18 10.51 +22 41 52.4 14.5 o B24
2007-02-04 23:18:41 C 10 18 10.14 +22 42 01.0 14.1 o B24
2007-02-05 09:25:36 C 10 17 22.78 +23 00 02.8 r H45
2007-02-05 09:26:12 C 10 17 22.73 +23 00 04.1 r H45
2007-02-05 09:27:49 C 10 17 22.59 +23 00 06.8 r H45
2007-02-05 09:29:35 C 10 17 22.46 +23 00 10.1 r H45
2007-02-05 09:31:24 C 10 17 22.32 +23 00 13.2 r H45
2007-02-08 00:50:02 C 10 12 27.20 +24 48 59.0 14.7 r 084
2007-02-08 00:52:11 C 10 12 27.05 +24 49 02.3 14.7 r 084
2007-02-09 03:07:37 C 10 10 22.64 +25 32 13.5 14.8 r 084
2007-02-09 03:09:46 C 10 10 22.45 +25 32 17.2 14.7 r 084
2007-02-09 06:43:39 C 10 10 06.60 +25 38 12.6 r 703
2007-02-09 06:52:56 C 10 10 05.80 +25 38 27.8 r 703
2007-02-09 07:02:16 C 10 10 05.01 +25 38 42.9 r 703
2007-02-09 07:11:36 C 10 10 04.26 +25 38 58.0 r 703
2007-02-10 00:48:52 C 10 08 40.00 +26 07 01.1 15.1 r 084
2007-02-10 00:51:01 C 10 08 39.83 +26 07 04.7 15.0 r 084
2007-02-10 03:30:05 C 10 08 26.98 +26 11 14.1 15.2 r 084
2007-02-11 03:11:16 C 10 06 34.40 +26 48 06.3 14.2 r 084
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)