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 14:53:52 s 1 -200740.59 5 +88282.707 3030.0 C57
2022-02-09 15:03:52 S 10 50 06.720 +25 00 31.43 V C57
2022-02-09 15:03:52 s 1 -200635.61 1 +87488.947 460.0 C57
2022-02-09 15:13:52 S 10 50 05.808 +25 00 47.41 V C57
2022-02-09 15:13:52 s 1 -200528.47 2 +86694.245 8060.0 C57
2022-02-09 15:23:52 S 10 50 05.004 +25 01 03.18 V C57
2022-02-09 15:23:52 s 1 -200419.16 8 +85898.606 5780.0 C57
2022-02-09 15:33:52 S 10 50 04.114 +25 01 18.62 V C57
2022-02-09 15:33:52 s 1 -200307.68 7 +85102.033 3570.0 C57
2022-02-09 15:43:52 S 10 50 03.262 +25 01 35.04 V C57
2022-02-09 15:43:52 s 1 -200194.02 1 +84304.530 1390.0 C57
2022-02-09 15:53:52 S 10 50 02.446 +25 01 50.41 V C57
2022-02-09 15:53:52 s 1 -200078.15 8 +83506.102 9200.0 C57
2022-02-09 16:03:52 S 10 50 01.630 +25 02 05.32 V C57
2022-02-09 16:03:52 s 1 -199960.08 8 +82706.752 6960.0 C57
2022-02-09 16:13:52 S 10 50 00.754 +25 02 22.02 V C57
2022-02-09 16:13:52 s 1 -199839.80 0 +81906.483 4610.0 C57
2022-02-09 16:23:52 S 10 49 59.897 +25 02 36.20 V C57
2022-02-09 16:23:52 s 1 -199717.28 6 +81105.301 2120.0 C57
2022-02-09 16:33:52 S 10 49 59.028 +25 02 53.12 V C57
2022-02-09 16:33:52 s 1 -199592.53 2 +80303.209 9430.0 C57
2022-02-09 16:43:52 S 10 49 58.178 +25 03 07.88 V C57
2022-02-09 16:43:52 s 1 -199465.53 0 +79500.211 6510.0 C57
2022-02-09 16:53:52 S 10 49 57.238 +25 03 25.16 V C57
2022-02-09 16:53:52 s 1 -199336.26 8 +78696.312 3310.0 C57
2022-02-09 17:03:52 S 10 49 56.453 +25 03 40.07 V C57
2022-02-09 17:03:52 s 1 -199204.73 6 +77891.516 9790.0 C57
2022-02-09 17:13:52 S 10 49 55.615 +25 03 55.22 V C57
2022-02-09 17:13:52 s 1 -199070.92 2 +77085.827 5890.0 C57
2022-02-09 17:23:52 S 10 49 54.775 +25 04 09.26 V C57
2022-02-09 17:23:52 s 1 -198934.81 7 +76279.249 1570.0 C57
2022-02-09 17:33:52 S 10 49 53.990 +25 04 25.50 V C57
2022-02-09 17:33:52 s 1 -198796.40 8 +75471.788 6790.0 C57
2022-02-09 17:43:52 S 10 49 53.038 +25 04 41.63 V C57
2022-02-09 17:43:52 s 1 -198655.68 6 +74663.448 1500.0 C57
2022-02-09 17:53:52 S 10 49 52.195 +25 04 57.47 V C57
2022-02-09 17:53:52 s 1 -198512.63 8 +73854.234 5650.0 C57
2022-02-09 18:03:52 S 10 49 51.293 +25 05 14.10 V C57
2022-02-09 18:03:52 s 1 -198367.25 4 +73044.149 9190.0 C57
2022-02-09 18:13:52 S 10 49 50.383 +25 05 29.40 V C57
2022-02-09 18:13:52 s 1 -198219.52 3 +72233.200 2080.0 C57
2022-02-09 18:23:52 S 10 49 49.543 +25 05 44.63 V C57
2022-02-09 18:23:52 s 1 -198069.43 4 +71421.390 4280.0 C57
2022-02-09 18:33:52 S 10 49 48.782 +25 06 00.32 V C57
2022-02-09 18:33:52 s 1 -197916.97 4 +70608.726 5720.0 C57
2022-02-09 18:43:52 S 10 49 47.945 +25 06 15.41 V C57
2022-02-09 18:43:52 s 1 -197762.13 3 +69795.211 6370.0 C57
2022-02-09 18:53:52 S 10 49 47.076 +25 06 31.00 V C57
2022-02-09 18:53:52 s 1 -197604.90 0 +68980.851 6180.0 C57
2022-02-09 19:03:52 S 10 49 46.246 +25 06 46.51 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)