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
2022-02-22 10:23:51 S 10 27 10.382 +31 56 17.95 V C57
2022-02-22 10:23:51 s 1 -166487.80 4 +259498.41 8400.0 C57
2022-02-22 10:33:51 S 10 27 09.576 +31 56 28.32 V C57
2022-02-22 10:33:51 s 1 -166732.92 8 +258987.59 3250.0 C57
2022-02-22 10:43:51 S 10 27 08.683 +31 56 38.72 V C57
2022-02-22 10:43:51 s 1 -166977.31 7 +258475.63 4440.0 C57
2022-02-22 10:46:18 C 10 26 38.12 +31 54 19.6 V T08
2022-02-22 10:50:55 C 10 26 37.74 +31 54 24.6 V T08
2022-02-22 10:53:51 S 10 27 07.766 +31 56 48.98 V C57
2022-02-22 10:53:51 s 1 -167220.96 5 +257962.53 1970.0 C57
2022-02-22 11:00:50 C 10 26 36.94 +31 54 35.3 V T08
2022-02-22 11:03:51 S 10 27 07.030 +31 57 00.68 V C57
2022-02-22 11:03:51 s 1 -167463.87 2 +257448.29 5820.0 C57
2022-02-22 11:13:51 S 10 27 06.115 +31 57 11.63 V C57
2022-02-22 11:13:51 s 1 -167706.03 4 +256932.91 5970.0 C57
2022-02-22 11:19:44 C 10 26 35.42 +31 54 55.5 V T08
2022-02-22 11:23:51 S 10 27 05.222 +31 57 22.10 V C57
2022-02-22 11:23:51 s 1 -167947.44 7 +256416.39 2420.0 C57
2022-02-22 11:29:40 C 10 26 34.62 +31 55 06.3 V T08
2022-02-22 11:33:51 S 10 27 04.334 +31 57 31.72 V C57
2022-02-22 11:33:51 s 1 -168188.11 0 +255898.72 5150.0 C57
2022-02-22 11:37:38 C 10 26 33.98 +31 55 14.8 V T08
2022-02-22 11:42:14 C 10 26 33.62 +31 55 19.7 V T08
2022-02-22 11:43:51 S 10 27 03.550 +31 57 43.02 V C57
2022-02-22 11:43:51 s 1 -168428.01 9 +255379.90 4140.0 C57
2022-02-22 11:53:51 S 10 27 02.654 +31 57 54.14 V C57
2022-02-22 11:53:51 s 1 -168667.17 0 +254859.95 9380.0 C57
2022-02-22 12:03:51 S 10 27 01.798 +31 58 05.34 V C57
2022-02-22 12:03:51 s 1 -168905.56 2 +254338.85 870.0 C57
2022-02-22 12:13:51 S 10 27 00.881 +31 58 13.84 V C57
2022-02-22 12:13:51 s 1 -169143.19 0 +253816.60 8580.0 C57
2022-02-22 12:23:51 S 10 27 00.036 +31 58 25.43 V C57
2022-02-22 12:23:51 s 1 -169380.05 3 +253293.20 2510.0 C57
2022-02-22 12:28:31 C 10 26 29.89 +31 56 08.9 V T08
2022-02-22 12:33:51 S 10 26 59.210 +31 58 37.16 V C57
2022-02-22 12:33:51 s 1 -169616.14 7 +252768.66 2630.0 C57
2022-02-22 12:43:51 S 10 26 58.342 +31 58 46.67 V C57
2022-02-22 12:43:51 s 1 -169851.46 8 +252242.98 8940.0 C57
2022-02-22 12:53:51 S 10 26 57.410 +31 58 56.35 V C57
2022-02-22 12:53:51 s 1 -170086.01 5 +251716.14 1420.0 C57
2022-02-22 13:03:51 S 10 26 56.556 +31 59 07.91 V C57
2022-02-22 13:03:51 s 1 -170319.78 3 +251188.16 50.0 C57
2022-02-22 13:13:51 S 10 26 55.764 +31 59 19.39 V C57
2022-02-22 13:13:51 s 1 -170552.76 9 +250659.02 4830.0 C57
2022-02-22 13:23:51 S 10 26 54.857 +31 59 29.26 V C57
2022-02-22 13:23:51 s 1 -170784.97 2 +250128.74 5750.0 C57
2022-02-22 13:33:51 S 10 26 53.916 +31 59 39.34 V C57
2022-02-22 13:33:51 s 1 -171016.38 7 +249597.31 2770.0 C57
2022-02-22 13:43:51 S 10 26 53.030 +31 59 48.19 V C57
2022-02-22 13:43:51 s 1 -171247.01 1 +249064.72 5900.0 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)