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
2022-02-21 09:23:51 S 10 29 19.027 +31 28 54.88 V C57
2022-02-21 09:23:51 s 1 -122823.44 3 +323523.46 5010.0 C57
2022-02-21 09:33:51 S 10 29 18.199 +31 29 05.75 V C57
2022-02-21 09:33:51 s 1 -123151.75 4 +323177.51 5210.0 C57
2022-02-21 09:43:51 S 10 29 17.299 +31 29 15.86 V C57
2022-02-21 09:43:51 s 1 -123479.65 9 +322830.50 3240.0 C57
2022-02-21 09:53:51 S 10 29 16.447 +31 29 27.28 V C57
2022-02-21 09:53:51 s 1 -123807.15 7 +322482.43 9100.0 C57
2022-02-21 10:03:51 S 10 29 15.684 +31 29 39.48 V C57
2022-02-21 10:03:51 s 1 -124134.24 8 +322133.30 2780.0 C57
2022-02-21 10:05:57 C 10 28 31.33 +31 27 09.4 V T08
2022-02-21 10:09:14 C 10 28 31.07 +31 27 13.0 V T08
2022-02-21 10:13:50 C 10 28 30.70 +31 27 18.4 V T08
2022-02-21 10:13:51 S 10 29 14.741 +31 29 50.06 V C57
2022-02-21 10:13:51 s 1 -124460.92 8 +321783.10 4280.0 C57
2022-02-21 10:23:51 S 10 29 13.858 +31 30 01.33 V C57
2022-02-21 10:23:51 s 1 -124787.19 6 +321431.84 3590.0 C57
2022-02-21 10:28:24 C 10 28 29.51 +31 27 34.7 V T08
2022-02-21 10:33:51 S 10 29 13.118 +31 30 12.85 V C57
2022-02-21 10:33:51 s 1 -125113.05 1 +321079.52 700.0 C57
2022-02-21 10:43:51 S 10 29 12.254 +31 30 24.05 V C57
2022-02-21 10:43:51 s 1 -125438.49 0 +320726.13 5600.0 C57
2022-02-21 10:53:51 S 10 29 11.357 +31 30 35.42 V C57
2022-02-21 10:53:51 s 1 -125763.51 3 +320371.68 8290.0 C57
2022-02-21 11:03:51 S 10 29 10.529 +31 30 45.40 V C57
2022-02-21 11:03:51 s 1 -126088.11 7 +320016.16 8750.0 C57
2022-02-21 11:13:51 S 10 29 09.730 +31 30 57.92 V C57
2022-02-21 11:13:51 s 1 -126412.30 0 +319659.58 6990.0 C57
2022-02-21 11:23:51 S 10 29 08.750 +31 31 08.65 V C57
2022-02-21 11:23:51 s 1 -126736.06 2 +319301.93 2980.0 C57
2022-02-21 11:33:51 S 10 29 07.982 +31 31 18.73 V C57
2022-02-21 11:33:51 s 1 -127059.39 9 +318943.22 6730.0 C57
2022-02-21 11:43:51 S 10 29 07.090 +31 31 29.78 V C57
2022-02-21 11:43:51 s 1 -127382.31 1 +318583.44 8220.0 C57
2022-02-21 11:53:51 S 10 29 06.288 +31 31 42.60 V C57
2022-02-21 11:53:51 s 1 -127704.79 5 +318222.59 7460.0 C57
2022-02-21 12:03:51 S 10 29 05.383 +31 31 53.51 V C57
2022-02-21 12:03:51 s 1 -128026.85 0 +317860.68 4420.0 C57
2022-02-21 12:13:51 S 10 29 04.546 +31 32 03.26 V C57
2022-02-21 12:13:51 s 1 -128348.47 5 +317497.70 9100.0 C57
2022-02-21 12:23:51 S 10 29 03.703 +31 32 15.61 V C57
2022-02-21 12:23:51 s 1 -128669.66 6 +317133.64 1500.0 C57
2022-02-21 12:33:51 S 10 29 02.825 +31 32 27.42 V C57
2022-02-21 12:33:51 s 1 -128990.42 3 +316768.52 1600.0 C57
2022-02-21 12:43:51 S 10 29 01.997 +31 32 37.97 V C57
2022-02-21 12:43:51 s 1 -129310.74 4 +316402.33 9400.0 C57
2022-02-21 12:53:51 S 10 29 01.114 +31 32 48.44 V C57
2022-02-21 12:53:51 s 1 -129630.62 7 +316035.07 4890.0 C57
2022-02-21 13:03:51 S 10 29 00.240 +31 33 00.68 V C57
2022-02-21 13:03:51 s 1 -129950.07 0 +315666.74 8060.0 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)