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
2022-02-08 10:43:52 s 1 -194155.50 6 +207286.58 770.0 C57
2022-02-08 10:53:52 S 10 52 28.375 +24 15 53.64 V C57
2022-02-08 10:53:52 s 1 -194306.13 8 +206675.21 2690.0 C57
2022-02-08 11:03:52 S 10 52 27.586 +24 16 09.23 V C57
2022-02-08 11:03:52 s 1 -194455.72 8 +206062.71 9590.0 C57
2022-02-08 11:13:52 S 10 52 26.688 +24 16 25.10 V C57
2022-02-08 11:13:52 s 1 -194604.27 2 +205449.10 1450.0 C57
2022-02-08 11:23:52 S 10 52 25.882 +24 16 41.74 V C57
2022-02-08 11:23:52 s 1 -194751.76 5 +204834.38 8260.0 C57
2022-02-08 11:33:52 S 10 52 25.046 +24 16 56.96 V C57
2022-02-08 11:33:52 s 1 -194898.20 4 +204218.53 0.0 C57
2022-02-08 11:43:52 S 10 52 24.240 +24 17 13.52 V C57
2022-02-08 11:43:52 s 1 -195043.58 4 +203601.57 6640.0 C57
2022-02-08 11:53:52 S 10 52 23.443 +24 17 29.40 V C57
2022-02-08 11:53:52 s 1 -195187.90 1 +202983.49 8180.0 C57
2022-02-08 12:03:52 S 10 52 22.644 +24 17 45.49 V C57
2022-02-08 12:03:52 s 1 -195331.15 1 +202364.29 4580.0 C57
2022-02-08 12:07:12 C 10 51 57.37 +24 17 10.7 V T05
2022-02-08 12:13:52 S 10 52 21.838 +24 18 01.01 V C57
2022-02-08 12:13:52 s 1 -195473.33 0 +201743.97 5840.0 C57
2022-02-08 12:23:52 S 10 52 21.000 +24 18 17.21 V C57
2022-02-08 12:23:52 s 1 -195614.43 3 +201122.54 1940.0 C57
2022-02-08 12:33:52 S 10 52 20.179 +24 18 33.73 V C57
2022-02-08 12:33:52 s 1 -195754.45 6 +200499.98 2850.0 C57
2022-02-08 12:43:52 S 10 52 19.306 +24 18 49.64 V C57
2022-02-08 12:43:52 s 1 -195893.39 4 +199876.31 8550.0 C57
2022-02-08 12:53:40 C 10 51 53.89 +24 18 25.5 V T05
2022-02-08 12:53:52 S 10 52 18.446 +24 19 05.27 V C57
2022-02-08 12:53:52 s 1 -196031.24 5 +199251.52 9040.0 C57
2022-02-08 12:58:18 C 10 51 53.53 +24 18 32.9 V T05
2022-02-08 13:03:52 S 10 52 17.657 +24 19 21.61 V C57
2022-02-08 13:03:52 s 1 -196168.00 2 +198625.62 4280.0 C57
2022-02-08 13:05:49 C 10 51 52.98 +24 18 44.9 V T05
2022-02-08 13:13:52 S 10 52 16.877 +24 19 36.91 V C57
2022-02-08 13:13:52 s 1 -196303.66 1 +197998.59 4260.0 C57
2022-02-08 13:23:52 S 10 52 16.121 +24 19 53.08 V C57
2022-02-08 13:23:52 s 1 -196438.21 9 +197370.44 8960.0 C57
2022-02-08 13:33:52 S 10 52 15.257 +24 20 09.20 V C57
2022-02-08 13:33:52 s 1 -196571.67 1 +196741.18 8360.0 C57
2022-02-08 13:43:52 S 10 52 14.400 +24 20 25.58 V C57
2022-02-08 13:43:52 s 1 -196704.01 2 +196110.79 2440.0 C57
2022-02-08 13:53:52 S 10 52 13.514 +24 20 42.11 V C57
2022-02-08 13:53:52 s 1 -196835.23 9 +195479.29 1180.0 C57
2022-02-08 14:03:52 S 10 52 12.758 +24 20 57.84 V C57
2022-02-08 14:03:52 s 1 -196965.34 5 +194846.67 4560.0 C57
2022-02-08 14:13:52 S 10 52 11.873 +24 21 13.39 V C57
2022-02-08 14:13:52 s 1 -197094.32 8 +194212.92 2570.0 C57
2022-02-08 14:23:52 S 10 52 11.100 +24 21 30.13 V C57
2022-02-08 14:23:52 s 1 -197222.18 1 +193578.06 5170.0 C57
2022-02-08 14:33:52 S 10 52 10.255 +24 21 45.00 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)