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
2022-02-09 02:43:52 s 1 -203199.83 8 +143499.85 7780.0 C57
2022-02-09 02:53:52 S 10 51 08.585 +24 41 22.85 V C57
2022-02-09 02:53:52 s 1 -203228.29 4 +142781.57 990.0 C57
2022-02-09 03:03:52 S 10 51 07.726 +24 41 38.90 V C57
2022-02-09 03:03:52 s 1 -203255.20 0 +142062.19 6960.0 C57
2022-02-09 03:13:52 S 10 51 06.938 +24 41 54.82 V C57
2022-02-09 03:13:52 s 1 -203280.54 9 +141341.72 5660.0 C57
2022-02-09 03:23:52 S 10 51 06.053 +24 42 10.69 V C57
2022-02-09 03:23:52 s 1 -203304.33 5 +140620.16 7070.0 C57
2022-02-09 03:33:52 S 10 51 05.294 +24 42 25.70 V C57
2022-02-09 03:33:52 s 1 -203326.55 1 +139897.52 1160.0 C57
2022-02-09 03:43:52 S 10 51 04.426 +24 42 41.83 V C57
2022-02-09 03:43:52 s 1 -203347.19 0 +139173.78 7890.0 C57
2022-02-09 03:53:52 S 10 51 03.595 +24 42 57.82 V C57
2022-02-09 03:53:52 s 1 -203366.24 5 +138448.96 7230.0 C57
2022-02-09 04:03:52 S 10 51 02.664 +24 43 13.73 V C57
2022-02-09 04:03:52 s 1 -203383.70 8 +137723.04 9160.0 C57
2022-02-09 04:13:52 S 10 51 01.836 +24 43 29.46 V C57
2022-02-09 04:13:52 s 1 -203399.57 4 +136996.05 3640.0 C57
2022-02-09 04:23:52 S 10 51 00.989 +24 43 45.62 V C57
2022-02-09 04:23:52 s 1 -203413.83 5 +136267.97 650.0 C57
2022-02-09 04:33:52 S 10 51 00.127 +24 44 01.82 V C57
2022-02-09 04:33:52 s 1 -203426.48 4 +135538.81 160.0 C57
2022-02-09 04:43:52 S 10 50 59.287 +24 44 17.02 V C57
2022-02-09 04:43:52 s 1 -203437.51 4 +134808.56 2130.0 C57
2022-02-09 04:53:52 S 10 50 58.550 +24 44 32.78 V C57
2022-02-09 04:53:52 s 1 -203446.91 8 +134077.24 6530.0 C57
2022-02-09 05:03:52 S 10 50 57.713 +24 44 48.12 V C57
2022-02-09 05:03:52 s 1 -203454.68 9 +133344.83 3330.0 C57
2022-02-09 05:13:52 S 10 50 56.842 +24 45 04.36 V C57
2022-02-09 05:13:52 s 1 -203460.81 9 +132611.35 2510.0 C57
2022-02-09 05:23:52 S 10 50 55.968 +24 45 20.34 V C57
2022-02-09 05:23:52 s 1 -203465.30 1 +131876.79 4020.0 C57
2022-02-09 05:33:52 S 10 50 55.097 +24 45 35.86 V C57
2022-02-09 05:33:52 s 1 -203468.12 8 +131141.15 7840.0 C57
2022-02-09 05:43:52 S 10 50 54.245 +24 45 50.72 V C57
2022-02-09 05:43:52 s 1 -203469.29 3 +130404.44 3940.0 C57
2022-02-09 05:53:52 S 10 50 53.419 +24 46 07.43 V C57
2022-02-09 05:53:52 s 1 -203468.78 8 +129666.66 2290.0 C57
2022-02-09 06:03:52 S 10 50 52.577 +24 46 22.69 V C57
2022-02-09 06:03:52 s 1 -203466.60 6 +128927.80 2840.0 C57
2022-02-09 06:13:52 S 10 50 51.768 +24 46 39.36 V C57
2022-02-09 06:13:52 s 1 -203462.73 9 +128187.88 5580.0 C57
2022-02-09 06:23:52 S 10 50 50.976 +24 46 53.98 V C57
2022-02-09 06:23:52 s 1 -203457.18 0 +127446.88 460.0 C57
2022-02-09 06:33:52 S 10 50 50.047 +24 47 10.18 V C57
2022-02-09 06:33:52 s 1 -203449.92 2 +126704.82 7460.0 C57
2022-02-09 06:43:52 S 10 50 49.226 +24 47 26.34 V C57
2022-02-09 06:43:52 s 1 -203440.95 7 +125961.69 6550.0 C57
2022-02-09 06:53:52 S 10 50 48.314 +24 47 42.14 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)