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 19:03:51 S 10 22 14.748 +32 52 56.24 V C57
2022-02-24 19:03:51 s 1 -177252.91 1 +19583.549 8580.0 C57
2022-02-24 19:13:51 S 10 22 13.642 +32 53 04.70 V C57
2022-02-24 19:13:51 s 1 -176925.95 6 +18710.659 5710.0 C57
2022-02-24 19:23:51 S 10 22 12.929 +32 53 10.75 V C57
2022-02-24 19:23:51 s 1 -176595.55 9 +17837.411 7490.0 C57
2022-02-24 19:33:51 S 10 22 12.130 +32 53 19.75 V C57
2022-02-24 19:33:51 s 1 -176261.70 0 +16963.820 3830.0 C57
2022-02-24 19:43:51 S 10 22 11.371 +32 53 32.93 V C57
2022-02-24 19:43:51 s 1 -175924.36 2 +16089.901 4670.0 C57
2022-02-24 19:53:51 S 10 22 10.651 +32 53 42.04 V C57
2022-02-24 19:53:51 s 1 -175583.52 8 +15215.668 9920.0 C57
2022-02-24 20:03:51 S 10 22 09.631 +32 53 52.04 V C57
2022-02-24 20:03:51 s 1 -175239.17 8 +14341.137 9520.0 C57
2022-02-24 20:13:51 S 10 22 08.722 +32 54 00.43 V C57
2022-02-24 20:13:51 s 1 -174891.29 5 +13466.322 3390.0 C57
2022-02-24 20:23:51 S 10 22 07.846 +32 54 09.72 V C57
2022-02-24 20:23:51 s 1 -174539.86 1 +12591.241 1460.0 C57
2022-02-24 20:33:51 S 10 22 07.032 +32 54 19.22 V C57
2022-02-24 20:33:51 s 1 -174184.85 7 +11715.908 3640.0 C57
2022-02-24 20:43:51 S 10 22 06.238 +32 54 28.98 V C57
2022-02-24 20:43:51 s 1 -173826.26 6 +10840.341 9870.0 C57
2022-02-24 20:53:51 S 10 22 05.371 +32 54 37.98 V C57
2022-02-24 20:53:51 s 1 -173464.06 8 + 9964.555 70.0 C57
2022-02-24 21:03:51 S 10 22 04.478 +32 54 46.69 V C57
2022-02-24 21:03:51 s 1 -173098.24 6 + 9088.566 4170.0 C57
2022-02-24 21:13:51 S 10 22 03.566 +32 54 55.55 V C57
2022-02-24 21:13:51 s 1 -172728.78 0 + 8212.393 2080.0 C57
2022-02-24 21:23:51 S 10 22 02.796 +32 55 06.10 V C57
2022-02-24 21:23:51 s 1 -172355.65 2 + 7336.052 3740.0 C57
2022-02-24 21:33:51 S 10 22 01.913 +32 55 15.28 V C57
2022-02-24 21:33:51 s 1 -171978.84 4 + 6459.560 9060.0 C57
2022-02-24 21:43:51 S 10 22 01.123 +32 55 23.95 V C57
2022-02-24 21:43:51 s 1 -171598.33 7 + 5582.935 7960.0 C57
2022-02-24 21:53:51 S 10 22 00.262 +32 55 32.74 V C57
2022-02-24 21:53:51 s 1 -171214.11 1 + 4706.196 380.0 C57
2022-02-24 22:03:51 S 10 21 59.232 +32 55 41.63 V C57
2022-02-24 22:03:51 s 1 -170826.14 9 + 3829.360 6240.0 C57
2022-02-24 22:33:51 S 10 21 56.801 +32 56 09.67 V C57
2022-02-24 22:33:51 s 1 -169639.64 8 + 1198.459 3630.0 C57
2022-02-24 22:43:51 S 10 21 56.064 +32 56 18.78 V C57
2022-02-24 22:43:51 s 1 -169236.54 7 + 321.425 2440.0 C57
2022-02-24 22:53:51 S 10 21 55.082 +32 56 26.88 V C57
2022-02-24 22:53:51 s 1 -168829.61 3 - 555.611 4300.0 C57
2022-02-24 23:03:51 S 10 21 54.238 +32 56 37.61 V C57
2022-02-24 23:03:51 s 1 -168418.82 8 - 1432.628 9130.0 C57
2022-02-24 23:13:51 S 10 21 53.455 +32 56 46.50 V C57
2022-02-24 23:13:51 s 1 -168004.17 1 - 2309.606 6850.0 C57
2022-02-24 23:23:51 S 10 21 52.531 +32 56 56.36 V C57
2022-02-24 23:23:51 s 1 -167585.62 4 - 3186.524 7380.0 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)