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
2022-02-25 07:32:44 C 10 21 29.22 +33 03 59.4 V G96
2022-02-25 07:33:51 S 10 21 11.587 +33 04 19.09 V C57
2022-02-25 07:33:51 s 1 -141897.89 6 -45560.906 5760.0 C57
2022-02-25 07:40:18 C 10 21 28.64 +33 04 06.6 V G96
2022-02-25 07:43:51 S 10 21 10.817 +33 04 28.45 V C57
2022-02-25 07:43:51 s 1 -141259.53 7 -46400.716 7160.0 C57
2022-02-25 07:47:45 C 10 21 28.05 +33 04 13.7 V G96
2022-02-25 07:53:51 S 10 21 09.984 +33 04 37.96 V C57
2022-02-25 07:53:51 s 1 -140616.28 5 -47238.915 7490.0 C57
2022-02-25 08:03:51 S 10 21 09.178 +33 04 45.88 V C57
2022-02-25 08:03:51 s 1 -139968.12 3 -48075.460 6700.0 C57
2022-02-25 08:13:51 S 10 21 08.290 +33 04 54.59 V C57
2022-02-25 08:13:51 s 1 -139315.03 4 -48910.309 4710.0 C57
2022-02-25 08:23:51 S 10 21 07.469 +33 05 03.70 V C57
2022-02-25 08:23:51 s 1 -138656.99 9 -49743.418 1460.0 C57
2022-02-25 08:33:51 S 10 21 06.737 +33 05 13.34 V C57
2022-02-25 08:33:51 s 1 -137994.00 1 -50574.741 6900.0 C57
2022-02-25 08:43:51 S 10 21 05.890 +33 05 22.52 V C57
2022-02-25 08:43:51 s 1 -137326.02 3 -51404.236 970.0 C57
2022-02-25 08:53:51 S 10 21 05.057 +33 05 30.59 V C57
2022-02-25 08:53:51 s 1 -136653.04 8 -52231.857 3590.0 C57
2022-02-25 09:03:51 S 10 21 04.212 +33 05 39.34 V C57
2022-02-25 09:03:51 s 1 -135975.05 9 -53057.557 4730.0 C57
2022-02-25 09:13:51 S 10 21 03.367 +33 05 48.16 V C57
2022-02-25 09:13:51 s 1 -135292.04 0 -53881.291 4310.0 C57
2022-02-25 09:23:51 S 10 21 02.683 +33 05 57.91 V C57
2022-02-25 09:23:51 s 1 -134603.97 4 -54703.011 2290.0 C57
2022-02-25 09:33:51 S 10 21 01.829 +33 06 07.13 V C57
2022-02-25 09:33:51 s 1 -133910.84 5 -55522.670 8600.0 C57
2022-02-25 09:43:51 S 10 21 01.018 +33 06 15.41 V C57
2022-02-25 09:43:51 s 1 -133212.63 8 -56340.219 3210.0 C57
2022-02-25 09:47:43 C 10 21 19.51 +33 06 10.1 V T05
2022-02-25 09:50:21 C 10 21 19.32 +33 06 12.5 V T05
2022-02-25 09:53:51 S 10 21 00.139 +33 06 24.59 V C57
2022-02-25 09:53:51 s 1 -132509.33 7 -57155.611 6050.0 C57
2022-02-25 09:54:59 C 10 21 18.95 +33 06 17.0 V T05
2022-02-25 10:03:32 C 10 21 18.28 +33 06 25.2 V T05
2022-02-25 10:03:51 S 10 20 59.297 +33 06 33.91 V C57
2022-02-25 10:03:51 s 1 -131800.92 6 -57968.796 7080.0 C57
2022-02-25 10:13:51 S 10 20 58.678 +33 06 42.16 V C57
2022-02-25 10:13:51 s 1 -131087.39 1 -58779.723 6250.0 C57
2022-02-25 10:23:51 S 10 20 57.864 +33 06 51.44 V C57
2022-02-25 10:23:51 s 1 -130368.71 8 -59588.343 3510.0 C57
2022-02-25 10:33:51 S 10 20 56.930 +33 06 59.98 V C57
2022-02-25 10:33:51 s 1 -129644.89 0 -60394.604 8820.0 C57
2022-02-25 10:43:51 S 10 20 56.170 +33 07 08.51 V C57
2022-02-25 10:43:51 s 1 -128915.89 6 -61198.455 2130.0 C57
2022-02-25 10:53:51 S 10 20 55.289 +33 07 17.94 V C57
2022-02-25 10:53:51 s 1 -128181.72 0 -61999.843 3400.0 C57
2022-02-25 11:03:51 S 10 20 54.521 +33 07 27.16 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)