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
2022-02-17 07:53:51 S 10 37 12.007 +29 29 36.24 V C57
2022-02-17 07:53:51 s 1 +95829.305 0 +352305.94 6800.0 C57
2022-02-17 08:03:51 S 10 37 11.201 +29 29 48.66 V C57
2022-02-17 08:03:51 s 1 +95473.041 0 +352550.34 310.0 C57
2022-02-17 08:13:51 S 10 37 10.498 +29 30 03.42 V C57
2022-02-17 08:13:51 s 1 +95116.498 0 +352793.70 2980.0 C57
2022-02-17 08:23:51 S 10 37 09.674 +29 30 14.98 V C57
2022-02-17 08:23:51 s 1 +94759.679 0 +353036.02 4820.0 C57
2022-02-17 08:33:51 S 10 37 08.952 +29 30 29.12 V C57
2022-02-17 08:33:51 s 1 +94402.583 0 +353277.30 5830.0 C57
2022-02-17 08:43:51 S 10 37 08.186 +29 30 42.70 V C57
2022-02-17 08:43:51 s 1 +94045.213 0 +353517.55 6020.0 C57
2022-02-17 08:53:51 S 10 37 07.476 +29 30 54.90 V C57
2022-02-17 08:53:51 s 1 +93687.571 0 +353756.75 5390.0 C57
2022-02-17 09:03:51 S 10 37 06.751 +29 31 08.65 V C57
2022-02-17 09:03:51 s 1 +93329.656 0 +353994.93 3950.0 C57
2022-02-17 09:13:51 S 10 37 05.878 +29 31 22.91 V C57
2022-02-17 09:13:51 s 1 +92971.471 0 +354232.06 1700.0 C57
2022-02-17 09:23:51 S 10 37 05.093 +29 31 34.25 V C57
2022-02-17 09:23:51 s 1 +92613.017 0 +354468.16 8650.0 C57
2022-02-17 09:33:51 S 10 37 04.418 +29 31 48.61 V C57
2022-02-17 09:33:51 s 1 +92254.295 0 +354703.22 4810.0 C57
2022-02-17 09:43:51 S 10 37 03.610 +29 32 01.43 V C57
2022-02-17 09:43:51 s 1 +91895.307 0 +354937.25 170.0 C57
2022-02-17 09:53:51 S 10 37 02.818 +29 32 14.10 V C57
2022-02-17 09:53:51 s 1 +91536.054 0 +355170.24 4760.0 C57
2022-02-17 10:03:51 S 10 37 02.146 +29 32 27.82 V C57
2022-02-17 10:03:51 s 1 +91176.536 0 +355402.20 8570.0 C57
2022-02-17 10:13:51 S 10 37 01.363 +29 32 40.67 V C57
2022-02-17 10:13:51 s 1 +90816.757 0 +355633.12 1600.0 C57
2022-02-17 10:23:51 S 10 37 00.562 +29 32 53.74 V C57
2022-02-17 10:23:51 s 1 +90456.716 0 +355863.01 3870.0 C57
2022-02-17 10:33:51 S 10 36 59.887 +29 33 07.16 V C57
2022-02-17 10:33:51 s 1 +90096.415 0 +356091.86 5370.0 C57
2022-02-17 10:43:51 S 10 36 59.086 +29 33 18.68 V C57
2022-02-17 10:43:51 s 1 +89735.855 0 +356319.69 6120.0 C57
2022-02-17 10:53:51 S 10 36 58.315 +29 33 33.55 V C57
2022-02-17 10:53:51 s 1 +89375.039 0 +356546.47 6130.0 C57
2022-02-17 11:03:51 S 10 36 57.542 +29 33 46.58 V C57
2022-02-17 11:03:51 s 1 +89013.966 0 +356772.23 5380.0 C57
2022-02-17 11:13:51 S 10 36 56.789 +29 33 58.21 V C57
2022-02-17 11:13:51 s 1 +88652.638 0 +356996.96 3900.0 C57
2022-02-17 11:23:51 S 10 36 56.059 +29 34 12.86 V C57
2022-02-17 11:23:51 s 1 +88291.057 0 +357220.65 1680.0 C57
2022-02-17 11:33:51 S 10 36 55.234 +29 34 26.51 V C57
2022-02-17 11:33:51 s 1 +87929.223 0 +357443.31 8730.0 C57
2022-02-17 11:43:51 S 10 36 54.547 +29 34 37.67 V C57
2022-02-17 11:43:51 s 1 +87567.139 0 +357664.94 5070.0 C57
2022-02-17 11:53:51 S 10 36 53.772 +29 34 52.28 V C57
2022-02-17 11:53:51 s 1 +87204.805 0 +357885.54 680.0 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)