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 02:43:52 s 1 -185776.18 2 +235324.07 4860.0 C57
2022-02-08 02:53:52 S 10 53 07.392 +24 03 01.04 V C57
2022-02-08 02:53:52 s 1 -185972.32 5 +234765.99 7760.0 C57
2022-02-08 03:03:52 S 10 53 06.564 +24 03 17.35 V C57
2022-02-08 03:03:52 s 1 -186167.60 3 +234206.81 6420.0 C57
2022-02-08 03:13:52 S 10 53 05.772 +24 03 33.52 V C57
2022-02-08 03:13:52 s 1 -186362.01 4 +233646.53 830.0 C57
2022-02-08 03:23:52 S 10 53 04.987 +24 03 49.97 V C57
2022-02-08 03:23:52 s 1 -186555.55 4 +233085.15 970.0 C57
2022-02-08 03:33:52 S 10 53 04.188 +24 04 04.91 V C57
2022-02-08 03:33:52 s 1 -186748.21 9 +232522.66 6840.0 C57
2022-02-08 03:43:52 S 10 53 03.386 +24 04 21.43 V C57
2022-02-08 03:43:52 s 1 -186940.00 7 +231959.07 8420.0 C57
2022-02-08 03:53:52 S 10 53 02.578 +24 04 38.06 V C57
2022-02-08 03:53:52 s 1 -187130.91 3 +231394.37 5690.0 C57
2022-02-08 04:03:52 S 10 53 01.762 +24 04 53.26 V C57
2022-02-08 04:03:52 s 1 -187320.93 5 +230828.56 8630.0 C57
2022-02-08 04:13:52 S 10 53 00.878 +24 05 10.54 V C57
2022-02-08 04:13:52 s 1 -187510.06 9 +230261.65 7240.0 C57
2022-02-08 04:23:52 S 10 53 00.048 +24 05 26.05 V C57
2022-02-08 04:23:52 s 1 -187698.31 1 +229693.64 1500.0 C57
2022-02-08 04:33:52 S 10 52 59.273 +24 05 42.36 V C57
2022-02-08 04:33:52 s 1 -187885.65 9 +229124.52 1380.0 C57
2022-02-08 04:43:52 S 10 52 58.534 +24 05 59.96 V C57
2022-02-08 04:43:52 s 1 -188072.10 8 +228554.29 6890.0 C57
2022-02-08 04:53:52 S 10 52 57.665 +24 06 15.37 V C57
2022-02-08 04:53:52 s 1 -188257.65 5 +227982.96 7990.0 C57
2022-02-08 05:03:52 S 10 52 56.926 +24 06 29.70 V C57
2022-02-08 05:03:52 s 1 -188442.29 7 +227410.52 4680.0 C57
2022-02-08 05:13:52 S 10 52 56.064 +24 06 46.15 V C57
2022-02-08 05:13:52 s 1 -188626.03 1 +226836.97 6940.0 C57
2022-02-08 05:23:52 S 10 52 55.322 +24 07 02.89 V C57
2022-02-08 05:23:52 s 1 -188808.85 2 +226262.31 4750.0 C57
2022-02-08 05:33:52 S 10 52 54.446 +24 07 19.60 V C57
2022-02-08 05:33:52 s 1 -188990.75 7 +225686.55 8100.0 C57
2022-02-08 05:43:52 S 10 52 53.611 +24 07 36.05 V C57
2022-02-08 05:43:52 s 1 -189171.74 3 +225109.68 6980.0 C57
2022-02-08 05:53:52 S 10 52 52.814 +24 07 50.52 V C57
2022-02-08 05:53:52 s 1 -189351.80 5 +224531.69 1360.0 C57
2022-02-08 06:03:52 S 10 52 52.032 +24 08 07.37 V C57
2022-02-08 06:03:52 s 1 -189530.94 2 +223952.60 1240.0 C57
2022-02-08 06:13:52 S 10 52 51.230 +24 08 22.74 V C57
2022-02-08 06:13:52 s 1 -189709.14 8 +223372.40 6590.0 C57
2022-02-08 06:23:52 S 10 52 50.431 +24 08 39.73 V C57
2022-02-08 06:23:52 s 1 -189886.42 0 +222791.09 7400.0 C57
2022-02-08 06:26:56 C 10 52 21.87 +24 07 57.1 V 703
2022-02-08 06:33:52 S 10 52 49.608 +24 08 55.57 V C57
2022-02-08 06:33:52 s 1 -190062.75 5 +222208.67 3650.0 C57
2022-02-08 06:34:34 C 10 52 21.31 +24 08 09.6 V 703
2022-02-08 06:42:12 C 10 52 20.74 +24 08 22.1 V 703
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)