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
2021-12-21 12:13:54 S 11 07 00.787 -03 26 28.28 V C57
2021-12-21 12:13:54 s 1 +98984.062 0 +348330.70 3980.0 C57
2021-12-21 12:23:54 S 11 07 01.270 -03 26 21.88 V C57
2021-12-21 12:23:54 s 1 +98667.886 0 +348612.20 2350.0 C57
2021-12-21 12:33:54 S 11 07 01.790 -03 26 13.52 V C57
2021-12-21 12:33:54 s 1 +98351.406 0 +348892.65 9690.0 C57
2021-12-21 12:43:54 S 11 07 02.218 -03 26 06.40 V C57
2021-12-21 12:43:54 s 1 +98034.623 0 +349172.06 6020.0 C57
2021-12-21 12:53:54 S 11 07 02.758 -03 25 56.50 V C57
2021-12-21 12:53:54 s 1 +97717.540 0 +349450.42 1350.0 C57
2021-12-21 13:03:54 S 11 07 03.204 -03 25 50.02 V C57
2021-12-21 13:03:54 s 1 +97400.157 0 +349727.75 5670.0 C57
2021-12-21 13:23:54 S 11 07 04.176 -03 25 32.16 V C57
2021-12-21 13:23:54 s 1 +96764.498 0 +350279.28 1330.0 C57
2021-12-21 13:33:54 S 11 07 04.608 -03 25 25.72 V C57
2021-12-21 13:33:54 s 1 +96446.224 0 +350553.48 2680.0 C57
2021-12-21 13:43:54 S 11 07 05.074 -03 25 18.98 V C57
2021-12-21 13:43:54 s 1 +96127.657 0 +350826.65 3050.0 C57
2021-12-21 13:53:54 S 11 07 05.566 -03 25 10.06 V C57
2021-12-21 13:53:54 s 1 +95808.796 0 +351098.78 2440.0 C57
2021-12-21 14:03:54 S 11 07 06.034 -03 25 02.86 V C57
2021-12-21 14:03:54 s 1 +95489.644 0 +351369.87 870.0 C57
2021-12-21 14:13:54 S 11 07 06.430 -03 24 52.74 V C57
2021-12-21 14:13:54 s 1 +95170.202 0 +351639.92 8330.0 C57
2021-12-21 14:23:54 S 11 07 06.914 -03 24 46.51 V C57
2021-12-21 14:23:54 s 1 +94850.471 0 +351908.94 4840.0 C57
2021-12-21 14:33:54 S 11 07 07.440 -03 24 37.91 V C57
2021-12-21 14:33:54 s 1 +94530.452 0 +352176.92 390.0 C57
2021-12-21 14:43:54 S 11 07 07.855 -03 24 31.14 V C57
2021-12-21 14:43:54 s 1 +94210.148 0 +352443.87 4990.0 C57
2021-12-21 14:53:54 S 11 07 08.362 -03 24 22.72 V C57
2021-12-21 14:53:54 s 1 +93889.559 0 +352709.78 8660.0 C57
2021-12-21 15:03:54 S 11 07 08.794 -03 24 14.83 V C57
2021-12-21 15:03:54 s 1 +93568.686 0 +352974.65 1390.0 C57
2021-12-21 15:13:54 S 11 07 09.271 -03 24 06.08 V C57
2021-12-21 15:13:54 s 1 +93247.531 0 +353238.50 3180.0 C57
2021-12-21 15:23:54 S 11 07 09.720 -03 23 58.56 V C57
2021-12-21 15:23:54 s 1 +92926.095 0 +353501.31 4050.0 C57
2021-12-21 15:33:54 S 11 07 10.190 -03 23 49.92 V C57
2021-12-21 15:33:54 s 1 +92604.380 0 +353763.09 4000.0 C57
2021-12-21 15:43:54 S 11 07 10.678 -03 23 43.55 V C57
2021-12-21 15:43:54 s 1 +92282.386 0 +354023.84 3040.0 C57
2021-12-21 15:53:54 S 11 07 11.251 -03 23 34.94 V C57
2021-12-21 15:53:54 s 1 +91960.116 0 +354283.55 1170.0 C57
2021-12-21 16:03:54 S 11 07 11.582 -03 23 26.70 V C57
2021-12-21 16:03:54 s 1 +91637.569 0 +354542.24 8390.0 C57
2021-12-21 17:23:54 S 11 07 15.396 -03 22 23.70 V C57
2021-12-21 17:23:54 s 1 +89047.433 0 +356574.69 4260.0 C57
2021-12-21 17:43:54 S 11 07 16.339 -03 22 08.76 V C57
2021-12-21 17:43:54 s 1 +88397.233 0 +357072.53 2050.0 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)