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
2022-02-09 23:23:52 s 1 -192411.58 0 +46694.800 8450.0 C57
2022-02-09 23:33:52 S 10 49 23.035 +25 13 47.28 V C57
2022-02-09 23:33:52 s 1 -192182.44 0 +45859.215 3980.0 C57
2022-02-09 23:43:52 S 10 49 22.150 +25 14 02.65 V C57
2022-02-09 23:43:52 s 1 -191950.54 7 +45022.974 7140.0 C57
2022-02-09 23:53:52 S 10 49 21.317 +25 14 18.96 V C57
2022-02-09 23:53:52 s 1 -191715.88 7 +44186.083 7900.0 C57
2022-02-10 00:03:52 S 10 49 20.438 +25 14 33.07 V C57
2022-02-10 00:03:52 s 1 -191478.44 7 +43348.552 6180.0 C57
2022-02-10 00:13:52 S 10 49 19.627 +25 14 49.13 V C57
2022-02-10 00:13:52 s 1 -191238.21 3 +42510.389 1940.0 C57
2022-02-10 00:23:52 S 10 49 18.802 +25 15 04.64 V C57
2022-02-10 00:23:52 s 1 -190995.17 1 +41671.601 5110.0 C57
2022-02-10 00:33:52 S 10 49 17.873 +25 15 20.16 V C57
2022-02-10 00:33:52 s 1 -190749.30 8 +40832.198 5640.0 C57
2022-02-10 00:43:52 S 10 49 17.038 +25 15 35.68 V C57
2022-02-10 00:43:52 s 1 -190500.60 9 +39992.188 3480.0 C57
2022-02-10 00:53:52 S 10 49 16.159 +25 15 50.72 V C57
2022-02-10 00:53:52 s 1 -190249.06 1 +39151.580 8560.0 C57
2022-02-10 01:03:52 S 10 49 15.293 +25 16 06.24 V C57
2022-02-10 01:03:52 s 1 -189994.65 0 +38310.383 820.0 C57
2022-02-10 01:13:52 S 10 49 14.489 +25 16 22.19 V C57
2022-02-10 01:13:52 s 1 -189737.36 2 +37468.606 210.0 C57
2022-02-10 01:23:52 S 10 49 13.642 +25 16 37.63 V C57
2022-02-10 01:23:52 s 1 -189477.18 2 +36626.259 6670.0 C57
2022-02-10 01:33:52 S 10 49 12.778 +25 16 53.08 V C57
2022-02-10 01:33:52 s 1 -189214.09 7 +35783.350 140.0 C57
2022-02-10 01:43:52 S 10 49 11.916 +25 17 08.02 V C57
2022-02-10 01:43:52 s 1 -188948.09 2 +34939.889 560.0 C57
2022-02-10 01:53:52 S 10 49 11.050 +25 17 24.25 V C57
2022-02-10 01:53:52 s 1 -188679.15 3 +34095.885 7880.0 C57
2022-02-10 02:03:52 S 10 49 10.159 +25 17 39.34 V C57
2022-02-10 02:03:52 s 1 -188407.26 5 +33251.349 2020.0 C57
2022-02-10 02:13:52 S 10 49 09.266 +25 17 56.18 V C57
2022-02-10 02:13:52 s 1 -188132.41 4 +32406.290 2940.0 C57
2022-02-10 02:23:52 S 10 49 08.443 +25 18 10.98 V C57
2022-02-10 02:23:52 s 1 -187854.58 5 +31560.719 570.0 C57
2022-02-10 02:33:52 S 10 49 07.603 +25 18 26.68 V C57
2022-02-10 02:33:52 s 1 -187573.76 5 +30714.645 4850.0 C57
2022-02-10 02:43:52 S 10 49 06.737 +25 18 41.47 V C57
2022-02-10 02:43:52 s 1 -187289.93 7 +29868.080 5720.0 C57
2022-02-10 02:53:52 S 10 49 05.894 +25 18 55.98 V C57
2022-02-10 02:53:52 s 1 -187003.08 7 +29021.032 3120.0 C57
2022-02-10 03:03:52 S 10 49 05.040 +25 19 12.47 V C57
2022-02-10 03:03:52 s 1 -186713.20 1 +28173.514 6990.0 C57
2022-02-10 03:13:52 S 10 49 04.171 +25 19 27.98 V C57
2022-02-10 03:13:52 s 1 -186420.26 4 +27325.536 7270.0 C57
2022-02-10 03:23:52 S 10 49 03.252 +25 19 43.68 V C57
2022-02-10 03:23:52 s 1 -186124.26 0 +26477.108 3890.0 C57
2022-02-10 03:33:52 S 10 49 02.395 +25 19 58.94 V C57
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)