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
2022-02-18 09:43:51 S 10 35 12.182 +30 03 02.05 V C57
2022-02-18 09:43:51 s 1 +38040.917 0 +377988.33 2090.0 C57
2022-02-18 09:53:51 S 10 35 11.400 +30 03 15.05 V C57
2022-02-18 09:53:51 s 1 +37655.986 0 +378075.38 7320.0 C57
2022-02-18 10:03:51 S 10 35 10.548 +30 03 26.78 V C57
2022-02-18 10:03:51 s 1 +37270.958 0 +378161.44 2490.0 C57
2022-02-18 10:13:51 S 10 35 09.850 +30 03 40.97 V C57
2022-02-18 10:13:51 s 1 +36885.833 0 +378246.50 7600.0 C57
2022-02-18 10:23:51 S 10 35 09.022 +30 03 53.82 V C57
2022-02-18 10:23:51 s 1 +36500.612 0 +378330.56 2650.0 C57
2022-02-18 10:33:51 S 10 35 08.189 +30 04 05.12 V C57
2022-02-18 10:33:51 s 1 +36115.296 0 +378413.63 7650.0 C57
2022-02-18 10:43:51 S 10 35 07.476 +30 04 18.48 V C57
2022-02-18 10:43:51 s 1 +35729.887 0 +378495.70 2600.0 C57
2022-02-18 10:53:51 S 10 35 06.655 +30 04 30.97 V C57
2022-02-18 10:53:51 s 1 +35344.386 0 +378576.78 7500.0 C57
2022-02-18 11:03:51 S 10 35 05.858 +30 04 43.64 V C57
2022-02-18 11:03:51 s 1 +34958.792 0 +378656.86 2370.0 C57
2022-02-18 11:13:51 S 10 35 05.081 +30 04 56.60 V C57
2022-02-18 11:13:51 s 1 +34573.108 0 +378735.94 7200.0 C57
2022-02-18 11:23:51 S 10 35 04.318 +30 05 08.95 V C57
2022-02-18 11:23:51 s 1 +34187.335 0 +378814.03 2000.0 C57
2022-02-18 11:33:51 S 10 35 03.461 +30 05 21.16 V C57
2022-02-18 11:33:51 s 1 +33801.474 0 +378891.12 6770.0 C57
2022-02-18 11:43:51 S 10 35 02.705 +30 05 34.62 V C57
2022-02-18 11:43:51 s 1 +33415.524 0 +378967.22 1520.0 C57
2022-02-18 11:53:51 S 10 35 01.942 +30 05 46.72 V C57
2022-02-18 11:53:51 s 1 +33029.489 0 +379042.32 6260.0 C57
2022-02-18 12:03:51 S 10 35 01.075 +30 05 58.92 V C57
2022-02-18 12:03:51 s 1 +32643.368 0 +379116.42 980.0 C57
2022-02-18 12:13:51 S 10 35 00.341 +30 06 13.00 V C57
2022-02-18 12:13:51 s 1 +32257.163 0 +379189.53 5690.0 C57
2022-02-18 12:23:51 S 10 34 59.510 +30 06 24.66 V C57
2022-02-18 12:23:51 s 1 +31870.875 0 +379261.65 9600.0 C57
2022-02-18 12:33:51 S 10 34 58.687 +30 06 36.83 V C57
2022-02-18 12:33:51 s 1 +31484.505 0 +379332.77 4890.0 C57
2022-02-18 12:43:51 S 10 34 57.986 +30 06 50.80 V C57
2022-02-18 12:43:51 s 1 +31098.053 0 +379402.90 180.0 C57
2022-02-18 12:53:51 S 10 34 57.158 +30 07 02.21 V C57
2022-02-18 12:53:51 s 1 +30711.521 0 +379472.03 5450.0 C57
2022-02-18 13:03:51 S 10 34 56.410 +30 07 14.41 V C57
2022-02-18 13:03:51 s 1 +30324.910 0 +379540.16 720.0 C57
2022-02-18 13:13:51 S 10 34 55.658 +30 07 28.63 V C57
2022-02-18 13:13:51 s 1 +29938.221 0 +379607.31 5960.0 C57
2022-02-18 13:23:51 S 10 34 54.770 +30 07 40.76 V C57
2022-02-18 13:23:51 s 1 +29551.455 0 +379673.45 1180.0 C57
2022-02-18 13:53:51 S 10 34 52.404 +30 08 18.71 V C57
2022-02-18 13:53:51 s 1 +28390.705 0 +379865.94 6660.0 C57
2022-02-18 14:03:51 S 10 34 51.600 +30 08 30.70 V C57
2022-02-18 14:03:51 s 1 +28003.642 0 +379928.11 1750.0 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)