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
2007-02-11 03:13:25 C 10 06 34.26 +26 48 09.4 14.4 r 084
2007-02-12 19:17:39 C 10 03 25.03 +27 48 06.2 r 168
2007-02-12 20:45:48 C 10 03 17.80 +27 50 14.5 r 168
2007-02-12 20:47:26 C 10 03 17.67 +27 50 17.1 r 168
2007-02-12 20:52:45 C 10 03 17.22 +27 50 24.7 r 168
2007-02-12 21:33:08 C 10 03 13.94 +27 51 23.5 r 168
2007-02-12 21:40:20 C 10 03 13.35 +27 51 33.6 r 168
2007-02-12 21:42:23 C 10 03 13.18 +27 51 36.6 r 168
2007-02-12 22:04:08 C 10 03 11.40 +27 52 08.1 r 168
2007-02-12 22:52:45 C 10 03 07.45 +27 53 18.0 r 168
2007-02-12 22:55:40 C 10 03 07.22 +27 53 22.3 r 168
2007-02-13 12:52:06 C 10 02 02.45 +28 13 27.7 r 379
2007-02-13 12:54:19 C 10 02 02.27 +28 13 30.6 r 379
2007-02-13 12:58:43 C 10 02 01.89 +28 13 37.0 r 379
2007-02-13 13:03:06 C 10 02 01.55 +28 13 43.5 r 379
2007-02-13 16:50:07 C 10 01 43.69 +28 18 57.7 r 168
2007-02-13 16:53:15 C 10 01 43.45 +28 19 02.1 r 168
2007-02-14 00:12:43 C 10 01 08.38 +28 29 24.0 c A24
2007-02-14 00:14:10 C 10 01 08.25 +28 29 26.2 c A24
2007-02-15 22:39:24 C 09 57 32.38 +29 32 03.6 c A24
2007-02-15 22:40:52 C 09 57 32.31 +29 32 04.7 c A24
2007-02-15 23:02:13 C 09 57 30.56 +29 32 32.8 c A24
2007-02-15 23:32:16 C 09 57 28.14 +29 33 12.2 c A24
2007-02-15 23:33:43 C 09 57 28.02 +29 33 14.0 c A24
2007-02-15 23:50:39 C 09 57 26.67 +29 33 35.9 c A24
2007-02-16 23:06:45 C 09 55 40.19 +30 03 14.4 c A24
2007-02-16 23:08:13 C 09 55 40.08 +30 03 16.2 c A24
2007-02-16 23:16:03 C 09 55 39.45 +30 03 25.9 c A24
2007-02-17 00:01:53 C 09 55 35.78 +30 04 23.1 c A24
2007-02-17 00:03:20 C 09 55 35.66 +30 04 24.9 c A24
2007-02-17 00:10:44 C 09 55 35.08 +30 04 34.0 c A24
2007-02-17 00:38:26 C 09 55 32.87 +30 05 08.4 c A24
2007-02-17 00:55:16 C 09 55 31.54 +30 05 29.3 c A24
2007-02-17 00:56:44 C 09 55 31.42 +30 05 31.1 c A24
2007-02-17 01:04:09 C 09 55 30.84 +30 05 40.2 c A24
2007-02-18 21:33:22 C 09 52 12.21 +30 58 59.4 c A24
2007-02-18 21:34:54 C 09 52 12.11 +30 59 01.1 c A24
2007-02-18 22:14:17 C 09 52 09.08 +30 59 46.6 c A24
2007-02-18 22:33:13 C 09 52 07.61 +31 00 08.6 c A24
2007-02-18 22:34:44 C 09 52 07.50 +31 00 10.4 c A24
2007-02-18 22:42:34 C 09 52 06.89 +31 00 19.3 c A24
2007-02-18 23:07:26 C 09 52 04.97 +31 00 47.8 c A24
2007-02-19 13:34:03 C 09 51 01.92 +31 17 12.2 r 379
2007-02-19 13:38:15 C 09 51 01.61 +31 17 17.0 r 379
2007-02-19 13:42:28 C 09 51 01.29 +31 17 22.1 r 379
2007-02-19 13:46:41 C 09 51 00.97 +31 17 26.5 r 379
2007-02-19 21:39:16 C 09 50 26.89 +31 26 08.9 c A24
2007-02-19 22:24:29 C 09 50 23.48 +31 26 58.5 c A24
2007-02-19 22:45:35 C 09 50 21.89 +31 27 21.6 c A24
2007-02-19 22:54:48 C 09 50 21.20 +31 27 30.7 15.4 o B24
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)