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
2022-02-22 22:23:51 S 10 26 07.889 +32 08 57.19 V C57
2022-02-22 22:23:51 s 1 -182067.22 0 +219771.73 5990.0 C57
2022-02-22 22:33:51 S 10 26 07.085 +32 09 07.20 V C57
2022-02-22 22:33:51 s 1 -182251.06 4 +219177.42 670.0 C57
2022-02-22 22:43:51 S 10 26 06.209 +32 09 16.52 V C57
2022-02-22 22:43:51 s 1 -182433.92 6 +218581.93 590.0 C57
2022-02-22 22:53:51 S 10 26 05.374 +32 09 27.36 V C57
2022-02-22 22:53:51 s 1 -182615.80 1 +217985.26 5740.0 C57
2022-02-22 23:03:51 S 10 26 04.411 +32 09 39.20 V C57
2022-02-22 23:03:51 s 1 -182796.68 6 +217387.42 6090.0 C57
2022-02-22 23:13:51 S 10 26 03.629 +32 09 47.27 V C57
2022-02-22 23:13:51 s 1 -182976.57 5 +216788.39 1630.0 C57
2022-02-22 23:23:51 S 10 26 02.731 +32 09 57.74 V C57
2022-02-22 23:23:51 s 1 -183155.46 6 +216188.19 2330.0 C57
2022-02-22 23:33:51 S 10 26 01.831 +32 10 09.98 V C57
2022-02-22 23:33:51 s 1 -183333.35 4 +215586.81 8190.0 C57
2022-02-22 23:43:51 S 10 26 01.066 +32 10 19.92 V C57
2022-02-22 23:43:51 s 1 -183510.23 4 +214984.24 9190.0 C57
2022-02-22 23:53:51 S 10 26 00.108 +32 10 29.14 V C57
2022-02-22 23:53:51 s 1 -183686.10 3 +214380.50 5290.0 C57
2022-02-23 00:03:51 S 10 25 59.170 +32 10 40.22 V C57
2022-02-23 00:03:51 s 1 -183860.95 7 +213775.58 6490.0 C57
2022-02-23 00:13:51 S 10 25 58.397 +32 10 50.70 V C57
2022-02-23 00:13:51 s 1 -184034.79 1 +213169.47 2770.0 C57
2022-02-23 00:23:51 S 10 25 57.533 +32 11 02.15 V C57
2022-02-23 00:23:51 s 1 -184207.60 1 +212562.18 4110.0 C57
2022-02-23 00:33:51 S 10 25 56.623 +32 11 11.69 V C57
2022-02-23 00:33:51 s 1 -184379.38 3 +211953.71 490.0 C57
2022-02-23 00:43:51 S 10 25 55.831 +32 11 21.41 V C57
2022-02-23 00:43:51 s 1 -184550.13 3 +211344.06 1880.0 C57
2022-02-23 00:53:51 S 10 25 54.890 +32 11 30.80 V C57
2022-02-23 00:53:51 s 1 -184719.84 6 +210733.23 8280.0 C57
2022-02-23 01:03:51 S 10 25 54.055 +32 11 42.68 V C57
2022-02-23 01:03:51 s 1 -184888.51 8 +210121.21 9660.0 C57
2022-02-23 01:13:51 S 10 25 53.210 +32 11 52.44 V C57
2022-02-23 01:13:51 s 1 -185056.14 5 +209508.00 6000.0 C57
2022-02-23 01:23:51 S 10 25 52.270 +32 12 02.34 V C57
2022-02-23 01:23:51 s 1 -185222.72 2 +208893.62 7290.0 C57
2022-02-23 01:33:51 S 10 25 51.430 +32 12 12.28 V C57
2022-02-23 01:33:51 s 1 -185388.24 5 +208278.05 3500.0 C57
2022-02-23 01:43:51 S 10 25 50.633 +32 12 23.72 V C57
2022-02-23 01:43:51 s 1 -185552.71 0 +207661.29 4620.0 C57
2022-02-23 01:53:51 S 10 25 49.759 +32 12 34.67 V C57
2022-02-23 01:53:51 s 1 -185716.11 2 +207043.35 620.0 C57
2022-02-23 02:03:51 S 10 25 48.792 +32 12 44.14 V C57
2022-02-23 02:03:51 s 1 -185878.44 7 +206424.23 1480.0 C57
2022-02-23 02:13:51 S 10 25 47.887 +32 12 53.78 V C57
2022-02-23 02:13:51 s 1 -186039.71 1 +205803.92 7190.0 C57
2022-02-23 02:23:51 S 10 25 47.095 +32 13 04.94 V C57
2022-02-23 02:23:51 s 1 -186199.89 8 +205182.42 7730.0 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)