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
2022-02-17 03:43:51 S 10 37 30.823 +29 24 06.05 V C57
2022-02-17 03:43:51 s 1 +104641.47 6 +345857.20 9090.0 C57
2022-02-17 03:53:51 S 10 37 30.101 +29 24 18.36 V C57
2022-02-17 03:53:51 s 1 +104292.61 4 +346127.70 5490.0 C57
2022-02-17 04:03:51 S 10 37 29.393 +29 24 32.44 V C57
2022-02-17 04:03:51 s 1 +103943.43 9 +346397.15 900.0 C57
2022-02-17 04:13:51 S 10 37 28.584 +29 24 45.86 V C57
2022-02-17 04:13:51 s 1 +103593.95 3 +346665.55 5340.0 C57
2022-02-17 04:23:51 S 10 37 27.809 +29 24 57.92 V C57
2022-02-17 04:23:51 s 1 +103244.15 7 +346932.90 8800.0 C57
2022-02-17 04:33:51 S 10 37 27.132 +29 25 12.72 V C57
2022-02-17 04:33:51 s 1 +102894.05 2 +347199.21 1290.0 C57
2022-02-17 04:43:51 S 10 37 26.292 +29 25 25.39 V C57
2022-02-17 04:43:51 s 1 +102543.64 0 +347464.47 2810.0 C57
2022-02-17 04:53:51 S 10 37 25.567 +29 25 38.24 V C57
2022-02-17 04:53:51 s 1 +102192.92 3 +347728.68 3380.0 C57
2022-02-17 05:03:51 S 10 37 24.888 +29 25 51.89 V C57
2022-02-17 05:03:51 s 1 +101841.90 1 +347991.84 3000.0 C57
2022-02-17 05:13:51 S 10 37 24.036 +29 26 04.63 V C57
2022-02-17 05:13:51 s 1 +101490.57 6 +348253.96 1680.0 C57
2022-02-17 05:23:51 S 10 37 23.299 +29 26 19.18 V C57
2022-02-17 05:23:51 s 1 +101138.94 9 +348515.04 9420.0 C57
2022-02-17 05:33:51 S 10 37 22.603 +29 26 31.42 V C57
2022-02-17 05:33:51 s 1 +100787.02 3 +348775.06 6220.0 C57
2022-02-17 05:43:51 S 10 37 21.782 +29 26 43.98 V C57
2022-02-17 05:43:51 s 1 +100434.79 8 +349034.05 2100.0 C57
2022-02-17 05:53:51 S 10 37 21.082 +29 26 58.31 V C57
2022-02-17 05:53:51 s 1 +100082.27 5 +349291.99 7050.0 C57
2022-02-17 06:03:51 S 10 37 20.268 +29 27 11.27 V C57
2022-02-17 06:03:51 s 1 +99729.456 0 +349548.88 1090.0 C57
2022-02-17 06:13:51 S 10 37 19.505 +29 27 23.51 V C57
2022-02-17 06:13:51 s 1 +99376.343 0 +349804.73 4220.0 C57
2022-02-17 06:23:51 S 10 37 18.809 +29 27 38.23 V C57
2022-02-17 06:23:51 s 1 +99022.936 0 +350059.54 6450.0 C57
2022-02-17 06:33:51 S 10 37 17.964 +29 27 50.11 V C57
2022-02-17 06:33:51 s 1 +98669.238 0 +350313.31 7780.0 C57
2022-02-17 06:43:51 S 10 37 17.311 +29 28 03.68 V C57
2022-02-17 06:43:51 s 1 +98315.249 0 +350566.03 8220.0 C57
2022-02-17 06:53:51 S 10 37 16.529 +29 28 17.94 V C57
2022-02-17 06:53:51 s 1 +97960.971 0 +350817.71 7770.0 C57
2022-02-17 07:03:51 S 10 37 15.744 +29 28 30.25 V C57
2022-02-17 07:03:51 s 1 +97606.405 0 +351068.35 6440.0 C57
2022-02-17 07:13:51 S 10 37 15.053 +29 28 43.28 V C57
2022-02-17 07:13:51 s 1 +97251.552 0 +351317.95 4240.0 C57
2022-02-17 07:23:51 S 10 37 14.251 +29 28 56.68 V C57
2022-02-17 07:23:51 s 1 +96896.415 0 +351566.51 1170.0 C57
2022-02-17 07:33:51 S 10 37 13.478 +29 29 09.56 V C57
2022-02-17 07:33:51 s 1 +96540.994 0 +351814.02 7230.0 C57
2022-02-17 07:43:51 S 10 37 12.770 +29 29 23.64 V C57
2022-02-17 07:43:51 s 1 +96185.290 0 +352060.50 2440.0 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)