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
2014-02-06 09:06:57 C 14 59 55.07 +06 41 23.7 u 807
2014-02-06 09:11:30 C 14 59 55.29 +06 41 25.5 u 807
2014-02-11 12:25:37 C 15 05 46.01 +07 36 28.3 N I41
2014-02-11 13:18:33 C 15 05 48.29 +07 36 53.4 N I41
2014-02-12 11:34:24 C 15 06 47.64 +07 47 37.8 N I41
2014-02-12 12:17:05 C 15 06 49.43 +07 47 58.7 N I41
2014-03-15 09:32:09 C 15 24 11.69 +15 54 20.9 u H21
2014-03-15 09:34:53 C 15 24 11.67 +15 54 23.1 u H21
2014-03-15 09:37:37 C 15 24 11.67 +15 54 25.2 u H21
2014-03-15 09:40:22 C 15 24 11.67 +15 54 27.5 u H21
2014-03-15 09:42:42 C 15 24 11.65 +15 54 29.3 u H21
2014-03-15 09:45:35 C 15 24 11.65 +15 54 31.8 u H21
2014-03-18 01:49:49 C 15 23 59.08 +16 45 59.0 q G40
2014-03-18 01:59:27 C 15 23 59.02 +16 46 06.9 q G40
2014-03-18 02:20:58 C 15 23 58.87 +16 46 24.2 q G40
2014-03-18 02:29:25 C 15 23 58.82 +16 46 30.7 q G40
2014-03-21 02:20:04 C 15 23 21.16 +17 45 04.9 q Z81
2014-03-21 03:08:20 C 15 23 20.52 +17 45 44.5 q Z81
2014-03-21 03:32:11 C 15 23 20.18 +17 46 04.4 q Z81
2014-03-21 03:56:40 C 15 23 19.86 +17 46 24.2 q Z81
2014-03-22 02:07:38 C 15 23 03.33 +18 04 37.8 q Z81
2014-03-22 02:31:48 C 15 23 02.96 +18 04 57.7 q Z81
2014-03-22 02:55:38 C 15 23 02.58 +18 05 17.6 q Z81
2014-03-24 23:06:31 C 15 21 55.86 +19 01 30.7 o C41
2014-03-24 23:08:00 C 15 21 55.82 +19 01 31.4 o C41
2014-03-24 23:09:35 C 15 21 55.83 +19 01 33.2 o C41
2014-03-25 21:56:11 C 15 21 28.37 +19 20 19.8 q D00
2014-03-25 22:12:01 C 15 21 28.11 +19 20 34.6 q D00
2014-03-25 22:28:00 C 15 21 27.74 +19 20 47.9 q D00
2014-03-25 22:44:06 C 15 21 27.41 +19 21 01.0 q D00
2014-03-26 01:18:25 C 15 21 23.86 +19 23 08.7 o C41
2014-03-26 01:19:56 C 15 21 23.81 +19 23 10.1 o C41
2014-03-27 12:02:19 C 15 20 36.798 +19 51 49.76 L F51
2014-03-27 12:25:16 C 15 20 36.192 +19 52 08.72 L F51
2014-03-28 08:27:01 C 15 20 06.15 +20 08 35.3 q 703
2014-03-28 08:37:22 C 15 20 05.90 +20 08 44.0 q 703
2014-03-28 08:47:39 C 15 20 05.60 +20 08 52.7 q 703
2014-03-28 08:57:57 C 15 20 05.29 +20 09 01.1 q 703
2014-03-31 09:31:00 C 15 17 59.30 +21 08 12.3 R G45
2014-03-31 09:51:02 C 15 17 58.63 +21 08 28.2 R G45
2014-03-31 10:10:43 C 15 17 57.97 +21 08 44.2 R G45
2014-03-31 10:38:16 C 15 17 57.06 +21 09 06.5 R G45
2014-03-31 10:38:22 C 15 17 57.03 +21 09 06.3 R G45
2014-03-31 11:05:13 C 15 17 56.11 +21 09 28.3 R G45
2014-03-31 11:05:19 C 15 17 56.07 +21 09 28.9 R G45
2014-03-31 11:22:58 C 15 17 55.51 +21 09 42.9 R G45
2014-03-31 11:23:04 C 15 17 55.49 +21 09 43.0 R G45
2014-03-31 11:40:29 C 15 17 54.94 +21 09 56.7 R G45
2014-03-31 11:40:35 C 15 17 54.89 +21 09 57.3 R G45
2014-03-31 11:57:52 C 15 17 54.30 +21 10 11.3 R G45
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)