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
2021-12-22 08:03:54 S 11 07 55.322 -03 10 39.61 V C57
2021-12-22 08:03:54 s 1 +59575.940 0 +374655.81 5950.0 C57
2021-12-22 08:13:54 S 11 07 55.769 -03 10 31.30 V C57
2021-12-22 08:13:54 s 1 +59232.366 0 +374816.89 8920.0 C57
2021-12-22 08:23:54 S 11 07 56.342 -03 10 23.20 V C57
2021-12-22 08:23:54 s 1 +58888.629 0 +374976.97 1460.0 C57
2021-12-22 08:33:54 S 11 07 56.681 -03 10 14.30 V C57
2021-12-22 08:33:54 s 1 +58544.732 0 +375136.07 3560.0 C57
2021-12-22 08:43:54 S 11 07 57.204 -03 10 07.07 V C57
2021-12-22 08:43:54 s 1 +58200.675 0 +375294.19 5230.0 C57
2021-12-22 08:53:54 S 11 07 57.504 -03 09 57.35 V C57
2021-12-22 08:53:54 s 1 +57856.459 0 +375451.32 6480.0 C57
2021-12-22 09:03:54 S 11 07 57.919 -03 09 51.55 V C57
2021-12-22 09:03:54 s 1 +57512.084 0 +375607.46 7310.0 C57
2021-12-22 09:13:54 S 11 07 58.361 -03 09 42.77 V C57
2021-12-22 09:13:54 s 1 +57167.553 0 +375762.62 7720.0 C57
2021-12-22 09:23:54 S 11 07 59.009 -03 09 36.72 V C57
2021-12-22 09:23:54 s 1 +56822.866 0 +375916.80 7720.0 C57
2021-12-22 09:33:54 S 11 07 59.369 -03 09 26.57 V C57
2021-12-22 09:33:54 s 1 +56478.024 0 +376070.00 7320.0 C57
2021-12-22 09:43:54 S 11 07 59.938 -03 09 19.04 V C57
2021-12-22 09:43:54 s 1 +56133.029 0 +376222.21 6510.0 C57
2021-12-22 10:03:54 S 11 08 00.583 -03 09 02.88 V C57
2021-12-22 10:03:54 s 1 +55442.580 0 +376523.68 3710.0 C57
2021-12-22 10:13:54 S 11 08 01.010 -03 08 53.84 V C57
2021-12-22 10:13:54 s 1 +55097.129 0 +376672.95 1720.0 C57
2021-12-22 10:23:54 S 11 08 01.469 -03 08 45.38 V C57
2021-12-22 10:23:54 s 1 +54751.528 0 +376821.23 9350.0 C57
2021-12-22 10:33:54 S 11 08 01.920 -03 08 37.79 V C57
2021-12-22 10:33:54 s 1 +54405.779 0 +376968.53 6590.0 C57
2021-12-22 10:43:54 S 11 08 02.364 -03 08 29.62 V C57
2021-12-22 10:43:54 s 1 +54059.882 0 +377114.85 3460.0 C57
2021-12-22 10:53:54 S 11 08 02.904 -03 08 20.94 V C57
2021-12-22 10:53:54 s 1 +53713.838 0 +377260.19 9960.0 C57
2021-12-22 11:03:54 S 11 08 03.298 -03 08 12.98 V C57
2021-12-22 11:03:54 s 1 +53367.649 0 +377404.55 6080.0 C57
2021-12-22 11:13:54 S 11 08 03.691 -03 08 04.81 V C57
2021-12-22 11:13:54 s 1 +53021.315 0 +377547.93 1840.0 C57
2021-12-22 11:23:54 S 11 08 04.114 -03 07 56.60 V C57
2021-12-22 11:23:54 s 1 +52674.837 0 +377690.33 7250.0 C57
2021-12-22 11:33:54 S 11 08 04.582 -03 07 49.19 V C57
2021-12-22 11:33:54 s 1 +52328.217 0 +377831.75 2290.0 C57
2021-12-22 11:43:54 S 11 08 04.992 -03 07 41.41 V C57
2021-12-22 11:43:54 s 1 +51981.456 0 +377972.19 6990.0 C57
2021-12-22 11:53:54 S 11 08 05.525 -03 07 32.56 V C57
2021-12-22 11:53:54 s 1 +51634.553 0 +378111.65 1340.0 C57
2021-12-22 12:23:54 S 11 08 06.756 -03 07 09.23 V C57
2021-12-22 12:23:54 s 1 +50593.013 0 +378524.16 2340.0 C57
2021-12-22 12:33:54 S 11 08 07.073 -03 06 59.44 V C57
2021-12-22 12:33:54 s 1 +50245.559 0 +378659.71 5340.0 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)