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 16:13:51 s 1 -33004.468 0 +377408.73 6550.0 C57
2022-02-19 16:23:51 S 10 32 44.165 +30 41 00.60 V C57
2022-02-19 16:23:51 s 1 -33390.348 0 +377314.51 9950.0 C57
2022-02-19 16:33:51 S 10 32 43.114 +30 41 11.98 V C57
2022-02-19 16:33:51 s 1 -33776.140 0 +377219.29 2600.0 C57
2022-02-19 16:43:51 S 10 32 42.732 +30 41 22.70 V C57
2022-02-19 16:43:51 s 1 -34161.843 0 +377123.08 4500.0 C57
2022-02-19 17:23:51 S 10 32 39.478 +30 42 14.47 V C57
2022-02-19 17:23:51 s 1 -35703.738 0 +376728.32 4540.0 C57
2022-02-19 17:33:51 S 10 32 38.671 +30 42 28.66 V C57
2022-02-19 17:33:51 s 1 -36088.978 0 +376627.15 2630.0 C57
2022-02-19 17:43:51 S 10 32 37.781 +30 42 40.64 V C57
2022-02-19 17:43:51 s 1 -36474.123 0 +376524.99 9940.0 C57
2022-02-19 17:53:51 S 10 32 36.994 +30 42 51.77 V C57
2022-02-19 17:53:51 s 1 -36859.170 0 +376421.83 6470.0 C57
2022-02-19 18:03:51 S 10 32 36.146 +30 43 02.96 V C57
2022-02-19 18:03:51 s 1 -37244.120 0 +376317.68 2210.0 C57
2022-02-19 18:13:51 S 10 32 35.362 +30 43 17.44 V C57
2022-02-19 18:13:51 s 1 -37628.971 0 +376212.54 7170.0 C57
2022-02-19 18:23:51 S 10 32 34.493 +30 43 28.81 V C57
2022-02-19 18:23:51 s 1 -38013.723 0 +376106.40 1330.0 C57
2022-02-19 18:33:51 S 10 32 33.701 +30 43 39.18 V C57
2022-02-19 18:33:51 s 1 -38398.373 0 +375999.27 4690.0 C57
2022-02-19 18:43:51 S 10 32 32.933 +30 43 52.82 V C57
2022-02-19 18:43:51 s 1 -38782.921 0 +375891.15 7240.0 C57
2022-02-19 18:53:51 S 10 32 32.047 +30 44 05.06 V C57
2022-02-19 18:53:51 s 1 -39167.367 0 +375782.03 8990.0 C57
2022-02-19 19:03:51 S 10 32 31.214 +30 44 15.83 V C57
2022-02-19 19:03:51 s 1 -39551.708 0 +375671.92 9920.0 C57
2022-02-19 19:13:51 S 10 32 30.439 +30 44 28.46 V C57
2022-02-19 19:13:51 s 1 -39935.944 0 +375560.81 30.0 C57
2022-02-19 19:23:51 S 10 32 29.611 +30 44 40.96 V C57
2022-02-19 19:23:51 s 1 -40320.074 0 +375448.72 9320.0 C57
2022-02-19 19:33:51 S 10 32 28.730 +30 44 51.97 V C57
2022-02-19 19:33:51 s 1 -40704.097 0 +375335.62 7780.0 C57
2022-02-19 19:43:51 S 10 32 27.938 +30 45 03.56 V C57
2022-02-19 19:43:51 s 1 -41088.011 0 +375221.54 5410.0 C57
2022-02-19 19:53:51 S 10 32 27.206 +30 45 16.88 V C57
2022-02-19 19:53:51 s 1 -41471.817 0 +375106.45 2200.0 C57
2022-02-19 20:03:51 S 10 32 26.321 +30 45 28.51 V C57
2022-02-19 20:03:51 s 1 -41855.511 0 +374990.38 8150.0 C57
2022-02-19 20:13:51 S 10 32 25.548 +30 45 39.74 V C57
2022-02-19 20:13:51 s 1 -42239.094 0 +374873.31 3250.0 C57
2022-02-19 20:23:51 S 10 32 24.718 +30 45 52.88 V C57
2022-02-19 20:23:51 s 1 -42622.565 0 +374755.24 7500.0 C57
2022-02-19 20:33:51 S 10 32 23.849 +30 46 04.98 V C57
2022-02-19 20:33:51 s 1 -43005.922 0 +374636.18 890.0 C57
2022-02-19 20:43:51 S 10 32 23.006 +30 46 15.64 V C57
2022-02-19 20:43:51 s 1 -43389.164 0 +374516.13 3430.0 C57
2022-02-19 20:52:09 C 10 31 23.53 +30 43 53.2 X G02
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)