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
2022-02-24 13:13:51 s 1 -186659.01 2 +49811.070 1740.0 C57
2022-02-24 13:18:47 C 10 22 49.40 +32 46 23.4 V T05
2022-02-24 13:23:51 S 10 22 44.081 +32 47 37.14 V C57
2022-02-24 13:23:51 s 1 -186442.02 0 +48958.344 2460.0 C57
2022-02-24 13:24:05 C 10 22 48.98 +32 46 28.5 V T05
2022-02-24 13:33:51 S 10 22 43.176 +32 47 46.25 V C57
2022-02-24 13:33:51 s 1 -186222.15 5 +48104.869 200.0 C57
2022-02-24 13:38:43 C 10 22 47.84 +32 46 42.6 V T05
2022-02-24 15:23:51 S 10 22 33.468 +32 49 30.97 V C57
2022-02-24 15:23:51 s 1 -183609.66 9 +38669.791 760.0 C57
2022-02-24 15:33:51 S 10 22 32.774 +32 49 41.20 V C57
2022-02-24 15:33:51 s 1 -183354.13 8 +37808.038 7800.0 C57
2022-02-24 15:43:51 S 10 22 32.014 +32 49 50.05 V C57
2022-02-24 15:43:51 s 1 -183095.53 4 +36945.658 1020.0 C57
2022-02-24 15:53:51 S 10 22 31.063 +32 49 59.27 V C57
2022-02-24 15:53:51 s 1 -182833.84 1 +36082.661 360.0 C57
2022-02-24 16:03:51 S 10 22 30.209 +32 50 07.37 V C57
2022-02-24 16:03:51 s 1 -182569.04 2 +35219.058 5740.0 C57
2022-02-24 16:13:51 S 10 22 29.376 +32 50 16.51 V C57
2022-02-24 16:13:51 s 1 -182301.12 3 +34354.859 7110.0 C57
2022-02-24 16:23:51 S 10 22 28.517 +32 50 27.64 V C57
2022-02-24 16:23:51 s 1 -182030.06 6 +33490.075 4390.0 C57
2022-02-24 16:33:51 S 10 22 27.686 +32 50 36.53 V C57
2022-02-24 16:33:51 s 1 -181755.85 5 +32624.718 7520.0 C57
2022-02-24 16:43:51 S 10 22 26.818 +32 50 44.84 V C57
2022-02-24 16:43:51 s 1 -181478.47 4 +31758.798 6420.0 C57
2022-02-24 16:53:51 S 10 22 25.872 +32 50 53.56 V C57
2022-02-24 16:53:51 s 1 -181197.90 6 +30892.326 1030.0 C57
2022-02-24 17:03:51 S 10 22 25.118 +32 51 02.48 V C57
2022-02-24 17:03:51 s 1 -180914.13 6 +30025.315 1280.0 C57
2022-02-24 17:13:51 S 10 22 24.475 +32 51 14.36 V C57
2022-02-24 17:13:51 s 1 -180627.14 5 +29157.776 7100.0 C57
2022-02-24 17:23:51 S 10 22 23.177 +32 51 16.16 V C57
2022-02-24 17:23:51 s 1 -180336.91 8 +28289.721 8420.0 C57
2022-02-24 17:43:51 S 10 22 21.336 +32 51 42.80 V C57
2022-02-24 17:43:51 s 1 -179746.68 8 +26552.112 7280.0 C57
2022-02-24 17:53:51 S 10 22 20.611 +32 51 51.01 V C57
2022-02-24 17:53:51 s 1 -179446.65 1 +25682.583 4680.0 C57
2022-02-24 18:03:51 S 10 22 19.855 +32 52 00.55 V C57
2022-02-24 18:03:51 s 1 -179143.30 9 +24812.587 7300.0 C57
2022-02-24 18:13:51 S 10 22 19.049 +32 52 10.13 V C57
2022-02-24 18:13:51 s 1 -178836.64 7 +23942.137 5060.0 C57
2022-02-24 18:23:51 S 10 22 18.190 +32 52 18.88 V C57
2022-02-24 18:23:51 s 1 -178526.64 6 +23071.247 7900.0 C57
2022-02-24 18:33:51 S 10 22 17.350 +32 52 27.48 V C57
2022-02-24 18:33:51 s 1 -178213.28 9 +22199.929 5750.0 C57
2022-02-24 18:43:51 S 10 22 16.416 +32 52 36.52 V C57
2022-02-24 18:43:51 s 1 -177896.55 9 +21328.198 8520.0 C57
2022-02-24 18:53:51 S 10 22 15.612 +32 52 47.50 V C57
2022-02-24 18:53:51 s 1 -177576.43 9 +20456.066 6160.0 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)