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
2022-02-20 21:03:51 S 10 30 21.631 +31 14 52.01 V C57
2022-02-20 21:03:51 s 1 -97517.182 0 +346209.33 570.0 C57
2022-02-20 21:13:51 S 10 30 20.678 +31 15 04.36 V C57
2022-02-20 21:13:51 s 1 -97871.091 0 +345940.73 1000.0 C57
2022-02-20 21:23:51 S 10 30 19.896 +31 15 16.81 V C57
2022-02-20 21:23:51 s 1 -98224.708 0 +345671.10 9780.0 C57
2022-02-20 21:33:51 S 10 30 19.051 +31 15 26.89 V C57
2022-02-20 21:33:51 s 1 -98578.031 0 +345400.45 6910.0 C57
2022-02-20 21:43:51 S 10 30 18.211 +31 15 38.59 V C57
2022-02-20 21:43:51 s 1 -98931.060 0 +345128.76 2360.0 C57
2022-02-20 21:53:51 S 10 30 17.381 +31 15 50.90 V C57
2022-02-20 21:53:51 s 1 -99283.792 0 +344856.03 6150.0 C57
2022-02-20 22:03:51 S 10 30 16.615 +31 16 01.60 V C57
2022-02-20 22:03:51 s 1 -99636.226 0 +344582.28 8250.0 C57
2022-02-20 22:13:51 S 10 30 15.696 +31 16 12.90 V C57
2022-02-20 22:13:51 s 1 -99988.362 0 +344307.49 8670.0 C57
2022-02-20 22:23:51 S 10 30 14.774 +31 16 24.13 V C57
2022-02-20 22:23:51 s 1 -100340.19 6 +344031.67 7400.0 C57
2022-02-20 22:33:51 S 10 30 14.033 +31 16 36.77 V C57
2022-02-20 22:33:51 s 1 -100691.72 9 +343754.81 4440.0 C57
2022-02-20 22:43:51 S 10 30 13.176 +31 16 48.11 V C57
2022-02-20 22:43:51 s 1 -101042.95 9 +343476.93 9770.0 C57
2022-02-20 22:53:51 S 10 30 12.322 +31 16 58.69 V C57
2022-02-20 22:53:51 s 1 -101393.88 4 +343198.00 3390.0 C57
2022-02-20 23:03:51 S 10 30 11.518 +31 17 11.18 V C57
2022-02-20 23:03:51 s 1 -101744.50 3 +342918.04 5290.0 C57
2022-02-20 23:13:51 S 10 30 10.733 +31 17 22.02 V C57
2022-02-20 23:13:51 s 1 -102094.81 4 +342637.05 5470.0 C57
2022-02-20 23:23:51 S 10 30 09.773 +31 17 33.61 V C57
2022-02-20 23:23:51 s 1 -102444.81 6 +342355.02 3930.0 C57
2022-02-20 23:33:51 S 10 30 08.940 +31 17 44.12 V C57
2022-02-20 23:33:51 s 1 -102794.50 8 +342071.96 640.0 C57
2022-02-20 23:43:51 S 10 30 08.160 +31 17 56.36 V C57
2022-02-20 23:43:51 s 1 -103143.88 8 +341787.85 5620.0 C57
2022-02-20 23:53:51 S 10 30 07.270 +31 18 08.03 V C57
2022-02-20 23:53:51 s 1 -103492.95 5 +341502.72 8850.0 C57
2022-02-21 00:03:51 S 10 30 06.406 +31 18 18.72 V C57
2022-02-21 00:03:51 s 1 -103841.70 6 +341216.54 320.0 C57
2022-02-21 00:13:51 S 10 30 05.623 +31 18 30.49 V C57
2022-02-21 00:13:51 s 1 -104190.14 2 +340929.33 30.0 C57
2022-02-21 00:23:51 S 10 30 04.793 +31 18 42.59 V C57
2022-02-21 00:23:51 s 1 -104538.26 0 +340641.08 7980.0 C57
2022-02-21 00:33:51 S 10 30 03.890 +31 18 53.32 V C57
2022-02-21 00:33:51 s 1 -104886.06 0 +340351.79 4150.0 C57
2022-02-21 00:43:51 S 10 30 03.043 +31 19 03.83 V C57
2022-02-21 00:43:51 s 1 -105233.53 8 +340061.46 8540.0 C57
2022-02-21 00:53:51 S 10 30 02.246 +31 19 16.68 V C57
2022-02-21 00:53:51 s 1 -105580.69 5 +339770.10 1140.0 C57
2022-02-21 01:03:51 S 10 30 01.416 +31 19 28.42 V C57
2022-02-21 01:03:51 s 1 -105927.52 8 +339477.69 1950.0 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)