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
2022-02-19 12:03:51 S 10 33 05.570 +30 35 47.62 V C57
2022-02-19 12:03:51 s 1 -23331.790 0 +379442.21 3020.0 C57
2022-02-19 12:13:51 S 10 33 04.766 +30 36 00.58 V C57
2022-02-19 12:13:51 s 1 -23719.541 0 +379372.76 3540.0 C57
2022-02-19 12:23:51 S 10 33 04.001 +30 36 12.38 V C57
2022-02-19 12:23:51 s 1 -24107.231 0 +379302.31 3440.0 C57
2022-02-19 12:33:51 S 10 33 03.103 +30 36 24.01 V C57
2022-02-19 12:33:51 s 1 -24494.857 0 +379230.88 2700.0 C57
2022-02-19 12:43:51 S 10 33 02.278 +30 36 35.71 V C57
2022-02-19 12:43:51 s 1 -24882.418 0 +379158.46 1320.0 C57
2022-02-19 12:53:51 S 10 33 01.531 +30 36 48.96 V C57
2022-02-19 12:53:51 s 1 -25269.914 0 +379085.04 9300.0 C57
2022-02-19 13:03:51 S 10 33 00.715 +30 37 00.77 V C57
2022-02-19 13:03:51 s 1 -25657.343 0 +379010.64 6630.0 C57
2022-02-19 13:33:51 S 10 32 58.238 +30 37 36.88 V C57
2022-02-19 13:33:51 s 1 -26819.220 0 +378781.49 4670.0 C57
2022-02-19 13:43:51 S 10 32 57.379 +30 37 48.83 V C57
2022-02-19 13:43:51 s 1 -27206.372 0 +378703.12 9360.0 C57
2022-02-19 13:53:51 S 10 32 56.606 +30 38 02.08 V C57
2022-02-19 13:53:51 s 1 -27593.453 0 +378623.77 3380.0 C57
2022-02-19 14:03:51 S 10 32 55.812 +30 38 13.52 V C57
2022-02-19 14:03:51 s 1 -27980.460 0 +378543.42 6720.0 C57
2022-02-19 14:13:51 S 10 32 54.917 +30 38 25.48 V C57
2022-02-19 14:13:51 s 1 -28367.394 0 +378462.09 9380.0 C57
2022-02-19 14:23:51 S 10 32 54.120 +30 38 37.39 V C57
2022-02-19 14:23:51 s 1 -28754.254 0 +378379.76 1350.0 C57
2022-02-19 14:33:51 S 10 32 53.347 +30 38 50.89 V C57
2022-02-19 14:33:51 s 1 -29141.037 0 +378296.44 2630.0 C57
2022-02-19 14:43:51 S 10 32 52.498 +30 39 01.73 V C57
2022-02-19 14:43:51 s 1 -29527.743 0 +378212.13 3230.0 C57
2022-02-19 14:53:51 S 10 32 51.722 +30 39 14.40 V C57
2022-02-19 14:53:51 s 1 -29914.371 0 +378126.83 3120.0 C57
2022-02-19 15:03:51 S 10 32 50.870 +30 39 27.47 V C57
2022-02-19 15:03:51 s 1 -30300.921 0 +378040.54 2310.0 C57
2022-02-19 15:13:51 S 10 32 50.069 +30 39 38.59 V C57
2022-02-19 15:13:51 s 1 -30687.390 0 +377953.25 790.0 C57
2022-02-19 15:20:27 C 10 31 47.75 +30 37 19.9 V T05
2022-02-19 15:23:51 S 10 32 49.255 +30 39 50.18 V C57
2022-02-19 15:23:51 s 1 -31073.779 0 +377864.98 8550.0 C57
2022-02-19 15:26:22 C 10 31 47.27 +30 37 26.7 V T05
2022-02-19 15:33:51 S 10 32 48.444 +30 40 04.01 V C57
2022-02-19 15:33:51 s 1 -31460.085 0 +377775.71 5610.0 C57
2022-02-19 15:43:51 S 10 32 47.597 +30 40 15.13 V C57
2022-02-19 15:43:51 s 1 -31846.308 0 +377685.46 1930.0 C57
2022-02-19 15:53:51 S 10 32 46.740 +30 40 26.69 V C57
2022-02-19 15:53:51 s 1 -32232.447 0 +377594.21 7540.0 C57
2022-02-19 16:02:05 C 10 31 44.45 +30 38 08.9 V T05
2022-02-19 16:03:51 S 10 32 46.006 +30 40 40.04 V C57
2022-02-19 16:03:51 s 1 -32618.501 0 +377501.97 2410.0 C57
2022-02-19 16:13:51 S 10 32 45.151 +30 40 51.31 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)