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
2022-02-16 23:13:51 S 10 37 51.108 +29 18 07.09 V C57
2022-02-16 23:13:51 s 1 +113937.23 8 +338155.66 780.0 C57
2022-02-16 23:23:51 S 10 37 50.381 +29 18 19.08 V C57
2022-02-16 23:23:51 s 1 +113597.37 0 +338454.64 6160.0 C57
2022-02-16 23:33:51 S 10 37 49.690 +29 18 33.37 V C57
2022-02-16 23:33:51 s 1 +113257.15 0 +338752.57 390.0 C57
2022-02-16 23:43:51 S 10 37 48.869 +29 18 46.69 V C57
2022-02-16 23:43:51 s 1 +112916.57 9 +339049.43 3470.0 C57
2022-02-16 23:53:51 S 10 37 48.041 +29 18 59.76 V C57
2022-02-16 23:53:51 s 1 +112575.65 9 +339345.23 5400.0 C57
2022-02-17 00:03:51 S 10 37 47.405 +29 19 13.66 V C57
2022-02-17 00:03:51 s 1 +112234.39 0 +339639.98 6200.0 C57
2022-02-17 00:13:51 S 10 37 46.565 +29 19 26.83 V C57
2022-02-17 00:13:51 s 1 +111892.77 5 +339933.66 5870.0 C57
2022-02-17 00:43:51 S 10 37 44.395 +29 20 06.04 V C57
2022-02-17 00:43:51 s 1 +110865.86 8 +340808.37 8160.0 C57
2022-02-17 00:53:51 S 10 37 43.630 +29 20 20.58 V C57
2022-02-17 00:53:51 s 1 +110522.88 2 +341097.82 3380.0 C57
2022-02-17 01:03:51 S 10 37 42.857 +29 20 33.40 V C57
2022-02-17 01:03:51 s 1 +110179.55 8 +341386.22 7490.0 C57
2022-02-17 01:13:51 S 10 37 42.139 +29 20 45.38 V C57
2022-02-17 01:13:51 s 1 +109835.89 6 +341673.56 510.0 C57
2022-02-17 01:23:51 S 10 37 41.398 +29 21 00.76 V C57
2022-02-17 01:23:51 s 1 +109491.89 9 +341959.84 2450.0 C57
2022-02-17 01:33:51 S 10 37 40.634 +29 21 12.92 V C57
2022-02-17 01:33:51 s 1 +109147.56 6 +342245.07 3310.0 C57
2022-02-17 01:43:51 S 10 37 39.912 +29 21 25.45 V C57
2022-02-17 01:43:51 s 1 +108802.90 1 +342529.24 3100.0 C57
2022-02-17 01:53:51 S 10 37 39.175 +29 21 40.00 V C57
2022-02-17 01:53:51 s 1 +108457.90 5 +342812.36 1810.0 C57
2022-02-17 02:03:51 S 10 37 38.309 +29 21 52.49 V C57
2022-02-17 02:03:51 s 1 +108112.57 8 +343094.43 9470.0 C57
2022-02-17 02:13:51 S 10 37 37.637 +29 22 06.06 V C57
2022-02-17 02:13:51 s 1 +107766.92 2 +343375.44 6080.0 C57
2022-02-17 02:23:51 S 10 37 36.898 +29 22 20.75 V C57
2022-02-17 02:23:51 s 1 +107420.94 0 +343655.40 1630.0 C57
2022-02-17 02:33:51 S 10 37 36.098 +29 22 32.27 V C57
2022-02-17 02:33:51 s 1 +107074.63 2 +343934.30 6150.0 C57
2022-02-17 02:43:51 S 10 37 35.376 +29 22 46.99 V C57
2022-02-17 02:43:51 s 1 +106727.99 9 +344212.16 9620.0 C57
2022-02-17 02:53:51 S 10 37 34.625 +29 22 59.16 V C57
2022-02-17 02:53:51 s 1 +106381.04 4 +344488.96 2070.0 C57
2022-02-17 03:03:51 S 10 37 33.830 +29 23 12.26 V C57
2022-02-17 03:03:51 s 1 +106033.76 7 +344764.71 3500.0 C57
2022-02-17 03:13:51 S 10 37 33.122 +29 23 26.30 V C57
2022-02-17 03:13:51 s 1 +105686.17 1 +345039.41 3910.0 C57
2022-02-17 03:23:51 S 10 37 32.338 +29 23 38.58 V C57
2022-02-17 03:23:51 s 1 +105338.25 6 +345313.06 3300.0 C57
2022-02-17 03:33:51 S 10 37 31.577 +29 23 52.94 V C57
2022-02-17 03:33:51 s 1 +104990.02 3 +345585.65 1700.0 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)