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
2022-02-24 09:13:51 S 10 23 05.671 +32 43 41.34 V C57
2022-02-24 09:13:51 s 1 -191041.91 0 +70032.312 8810.0 C57
2022-02-24 09:23:51 S 10 23 04.865 +32 43 49.33 V C57
2022-02-24 09:23:51 s 1 -190889.64 2 +69199.754 2990.0 C57
2022-02-24 09:33:51 S 10 23 04.001 +32 43 59.99 V C57
2022-02-24 09:33:51 s 1 -190734.83 2 +68366.281 5600.0 C57
2022-02-24 09:43:51 S 10 23 03.130 +32 44 10.32 V C57
2022-02-24 09:43:51 s 1 -190577.46 8 +67531.898 6590.0 C57
2022-02-24 09:53:51 S 10 23 02.280 +32 44 19.79 V C57
2022-02-24 09:53:51 s 1 -190417.53 7 +66696.613 5900.0 C57
2022-02-24 10:03:51 S 10 23 01.349 +32 44 28.68 V C57
2022-02-24 10:03:51 s 1 -190255.02 5 +65860.429 3490.0 C57
2022-02-24 10:13:51 S 10 23 00.439 +32 44 37.75 V C57
2022-02-24 10:13:51 s 1 -190089.91 9 +65023.355 9280.0 C57
2022-02-24 10:23:51 S 10 22 59.654 +32 44 47.22 V C57
2022-02-24 10:23:51 s 1 -189922.20 6 +64185.395 3220.0 C57
2022-02-24 10:33:51 S 10 22 58.754 +32 44 57.62 V C57
2022-02-24 10:33:51 s 1 -189751.87 3 +63346.556 5260.0 C57
2022-02-24 10:43:51 S 10 22 57.878 +32 45 07.38 V C57
2022-02-24 10:43:51 s 1 -189578.90 6 +62506.845 5350.0 C57
2022-02-24 10:53:51 S 10 22 57.089 +32 45 15.88 V C57
2022-02-24 10:53:51 s 1 -189403.29 2 +61666.267 3420.0 C57
2022-02-24 11:03:51 S 10 22 56.136 +32 45 24.80 V C57
2022-02-24 11:03:51 s 1 -189225.01 7 +60824.829 9410.0 C57
2022-02-24 11:13:51 S 10 22 55.238 +32 45 34.67 V C57
2022-02-24 11:13:51 s 1 -189044.06 8 +59982.538 3270.0 C57
2022-02-24 11:23:51 S 10 22 54.499 +32 45 44.39 V C57
2022-02-24 11:23:51 s 1 -188860.43 1 +59139.401 4940.0 C57
2022-02-24 11:33:51 S 10 22 53.563 +32 45 54.40 V C57
2022-02-24 11:33:51 s 1 -188674.09 2 +58295.424 4360.0 C57
2022-02-24 11:43:51 S 10 22 52.714 +32 46 03.94 V C57
2022-02-24 11:43:51 s 1 -188485.03 8 +57450.614 1470.0 C57
2022-02-24 11:53:51 S 10 22 51.840 +32 46 12.18 V C57
2022-02-24 11:53:51 s 1 -188293.25 3 +56604.979 6210.0 C57
2022-02-24 12:03:51 S 10 22 50.986 +32 46 21.04 V C57
2022-02-24 12:03:51 s 1 -188098.72 6 +55758.526 8530.0 C57
2022-02-24 12:13:51 S 10 22 50.114 +32 46 32.27 V C57
2022-02-24 12:13:51 s 1 -187901.44 0 +54911.262 8360.0 C57
2022-02-24 12:23:51 S 10 22 49.296 +32 46 41.48 V C57
2022-02-24 12:23:51 s 1 -187701.38 2 +54063.194 5650.0 C57
2022-02-24 12:33:51 S 10 22 48.353 +32 46 49.84 V C57
2022-02-24 12:33:51 s 1 -187498.53 8 +53214.330 320.0 C57
2022-02-24 12:43:51 S 10 22 47.453 +32 46 59.74 V C57
2022-02-24 12:43:51 s 1 -187292.89 4 +52364.678 2330.0 C57
2022-02-24 12:53:51 S 10 22 46.678 +32 47 08.20 V C57
2022-02-24 12:53:51 s 1 -187084.43 4 +51514.245 1610.0 C57
2022-02-24 13:03:51 S 10 22 45.725 +32 47 19.14 V C57
2022-02-24 13:03:51 s 1 -186873.14 5 +50663.040 8100.0 C57
2022-02-24 13:10:52 C 10 22 50.01 +32 46 15.8 V T05
2022-02-24 13:13:51 S 10 22 44.962 +32 47 28.97 V 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)