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
2022-02-23 15:53:51 S 10 24 36.394 +32 26 46.18 V C57
2022-02-23 15:53:51 s 1 -195142.27 7 +150887.04 8000.0 C57
2022-02-23 16:03:51 S 10 24 35.561 +32 26 55.79 V C57
2022-02-23 16:03:51 s 1 -195196.55 0 +150167.96 5830.0 C57
2022-02-23 16:13:51 S 10 24 34.608 +32 27 05.83 V C57
2022-02-23 16:13:51 s 1 -195249.28 0 +149447.70 6430.0 C57
2022-02-23 16:23:51 S 10 24 33.758 +32 27 16.16 V C57
2022-02-23 16:23:51 s 1 -195300.46 2 +148726.25 9760.0 C57
2022-02-23 16:33:51 S 10 24 32.926 +32 27 26.64 V C57
2022-02-23 16:33:51 s 1 -195350.08 7 +148003.63 5790.0 C57
2022-02-23 16:43:51 S 10 24 32.014 +32 27 36.32 V C57
2022-02-23 16:43:51 s 1 -195398.15 0 +147279.83 4500.0 C57
2022-02-23 16:53:51 S 10 24 31.099 +32 27 45.76 V C57
2022-02-23 16:53:51 s 1 -195444.64 2 +146554.85 5840.0 C57
2022-02-23 17:03:51 S 10 24 30.247 +32 27 55.58 V C57
2022-02-23 17:03:51 s 1 -195489.55 7 +145828.69 9790.0 C57
2022-02-23 17:13:51 S 10 24 29.410 +32 28 06.42 V C57
2022-02-23 17:13:51 s 1 -195532.88 7 +145101.36 6320.0 C57
2022-02-23 17:23:51 S 10 24 28.502 +32 28 16.39 V C57
2022-02-23 17:23:51 s 1 -195574.62 5 +144372.85 5400.0 C57
2022-02-23 17:33:51 S 10 24 27.701 +32 28 25.72 V C57
2022-02-23 17:33:51 s 1 -195614.76 5 +143643.17 6990.0 C57
2022-02-23 17:43:51 S 10 24 26.784 +32 28 35.22 V C57
2022-02-23 17:43:51 s 1 -195653.29 7 +142912.31 1060.0 C57
2022-02-23 17:53:51 S 10 24 25.896 +32 28 46.13 V C57
2022-02-23 17:53:51 s 1 -195690.21 7 +142180.28 7580.0 C57
2022-02-23 18:03:51 S 10 24 25.128 +32 28 56.28 V C57
2022-02-23 18:03:51 s 1 -195725.51 4 +141447.08 6510.0 C57
2022-02-23 18:13:51 S 10 24 24.230 +32 29 05.75 V C57
2022-02-23 18:13:51 s 1 -195759.18 3 +140712.71 7830.0 C57
2022-02-23 18:23:51 S 10 24 23.280 +32 29 15.00 V C57
2022-02-23 18:23:51 s 1 -195791.21 6 +139977.16 1500.0 C57
2022-02-23 18:33:51 S 10 24 22.418 +32 29 24.25 V C57
2022-02-23 18:33:51 s 1 -195821.60 6 +139240.45 7490.0 C57
2022-02-23 18:43:51 S 10 24 21.511 +32 29 35.23 V C57
2022-02-23 18:43:51 s 1 -195850.34 4 +138502.56 5760.0 C57
2022-02-23 18:53:51 S 10 24 20.676 +32 29 45.20 V C57
2022-02-23 18:53:51 s 1 -195877.42 3 +137763.52 6280.0 C57
2022-02-23 19:03:51 S 10 24 19.824 +32 29 54.24 V C57
2022-02-23 19:03:51 s 1 -195902.83 5 +137023.30 9020.0 C57
2022-02-23 19:13:51 S 10 24 18.840 +32 30 04.57 V C57
2022-02-23 19:13:51 s 1 -195926.57 3 +136281.92 3950.0 C57
2022-02-23 19:23:51 S 10 24 18.014 +32 30 14.69 V C57
2022-02-23 19:23:51 s 1 -195948.63 0 +135539.37 1020.0 C57
2022-02-23 19:33:51 S 10 24 17.230 +32 30 25.34 V C57
2022-02-23 19:33:51 s 1 -195968.99 6 +134795.66 210.0 C57
2022-02-23 19:43:51 S 10 24 16.330 +32 30 34.92 V C57
2022-02-23 19:43:51 s 1 -195987.66 4 +134050.79 1480.0 C57
2022-02-23 19:53:51 S 10 24 15.398 +32 30 45.18 V C57
2022-02-23 19:53:51 s 1 -196004.62 7 +133304.76 4800.0 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)