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 13:53:51 S 10 26 52.306 +32 00 01.66 V C57
2022-02-22 13:53:51 s 1 -171476.84 1 +248530.99 5120.0 C57
2022-02-22 14:03:51 S 10 26 51.367 +32 00 12.10 V C57
2022-02-22 14:03:51 s 1 -171705.87 4 +247996.10 400.0 C57
2022-02-22 14:13:51 S 10 26 50.491 +32 00 21.24 V C57
2022-02-22 14:13:51 s 1 -171934.10 7 +247460.07 1750.0 C57
2022-02-22 14:23:51 S 10 26 49.654 +32 00 32.26 V C57
2022-02-22 14:23:51 s 1 -172161.53 7 +246922.87 9150.0 C57
2022-02-22 14:33:51 S 10 26 48.756 +32 00 45.00 V C57
2022-02-22 14:33:51 s 1 -172388.16 0 +246384.53 2570.0 C57
2022-02-22 14:43:51 S 10 26 47.870 +32 00 54.43 V C57
2022-02-22 14:43:51 s 1 -172613.97 4 +245845.03 2010.0 C57
2022-02-22 14:53:51 S 10 26 47.033 +32 01 04.40 V C57
2022-02-22 14:53:51 s 1 -172838.97 4 +245304.38 7450.0 C57
2022-02-22 15:03:51 S 10 26 46.111 +32 01 14.20 V C57
2022-02-22 15:03:51 s 1 -173063.15 8 +244762.57 8880.0 C57
2022-02-22 15:13:51 S 10 26 45.336 +32 01 26.72 V C57
2022-02-22 15:13:51 s 1 -173286.52 3 +244219.61 6280.0 C57
2022-02-22 15:23:51 S 10 26 44.491 +32 01 36.55 V C57
2022-02-22 15:23:51 s 1 -173509.06 5 +243675.49 9640.0 C57
2022-02-22 15:33:51 S 10 26 43.550 +32 01 46.88 V C57
2022-02-22 15:33:51 s 1 -173730.78 1 +243130.21 8940.0 C57
2022-02-22 15:43:51 S 10 26 42.624 +32 01 57.36 V C57
2022-02-22 15:43:51 s 1 -173951.66 8 +242583.78 4170.0 C57
2022-02-22 15:53:51 S 10 26 41.868 +32 02 08.59 V C57
2022-02-22 15:53:51 s 1 -174171.72 1 +242036.19 5310.0 C57
2022-02-22 16:03:51 S 10 26 40.997 +32 02 19.10 V C57
2022-02-22 16:03:51 s 1 -174390.93 9 +241487.44 2350.0 C57
2022-02-22 16:13:51 S 10 26 40.054 +32 02 28.79 V C57
2022-02-22 16:13:51 s 1 -174609.31 8 +240937.54 5270.0 C57
2022-02-22 16:23:51 S 10 26 39.223 +32 02 38.62 V C57
2022-02-22 16:23:51 s 1 -174826.85 3 +240386.47 4070.0 C57
2022-02-22 16:33:51 S 10 26 38.383 +32 02 50.50 V C57
2022-02-22 16:33:51 s 1 -175043.54 3 +239834.24 8710.0 C57
2022-02-22 16:43:51 S 10 26 37.505 +32 03 01.55 V C57
2022-02-22 16:43:51 s 1 -175259.38 3 +239280.86 9200.0 C57
2022-02-22 16:53:51 S 10 26 36.689 +32 03 11.41 V C57
2022-02-22 16:53:51 s 1 -175474.37 1 +238726.31 5500.0 C57
2022-02-22 17:03:51 S 10 26 35.762 +32 03 21.20 V C57
2022-02-22 17:03:51 s 1 -175688.50 1 +238170.60 7620.0 C57
2022-02-22 17:13:51 S 10 26 34.846 +32 03 32.26 V C57
2022-02-22 17:13:51 s 1 -175901.77 3 +237613.73 5520.0 C57
2022-02-22 17:23:51 S 10 26 34.114 +32 03 43.24 V C57
2022-02-22 17:23:51 s 1 -176114.18 1 +237055.70 9200.0 C57
2022-02-22 17:33:51 S 10 26 33.173 +32 03 53.06 V C57
2022-02-22 17:33:51 s 1 -176325.72 2 +236496.50 8650.0 C57
2022-02-22 17:43:51 S 10 26 32.294 +32 04 03.40 V C57
2022-02-22 17:43:51 s 1 -176536.39 3 +235936.14 3830.0 C57
2022-02-22 17:53:51 S 10 26 31.457 +32 04 14.45 V C57
2022-02-22 17:53:51 s 1 -176746.19 0 +235374.62 4750.0 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)