8507 (1991 CB1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5947797394 ± 1.74e-08
Semi-major axis (a)1.6873346431 AU ± 1.37e-09
Inclination (i)14.60088631° ± 2.63e-06
Long. of Asc. Node (Ω)317.36128812° ± 1.25e-05
Arg. of Perihelion (ω)345.84290119° ± 1.30e-05
Mean Anomaly (M)189.18650153° ± 3.15e-06
Mean Motion (n)0.4496871125°/day ± 5.47e-10
Perihelion dist (q)0.68374218 AU ± 2.94e-08
Aphelion dist (Q)2.69092710 AU ± 2.95e-08
Orbital Period2.19180460 yr ± 2.67e-09
Physical Parameters
H (abs. magnitude)17.22
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.331″
Uncertainty0
Orbit TypeApollo
MOID0.221029 AU
Observations Used772
Oppositions19
Arc Total1991-2026
First Observation Used1991-02-15
Last Observation Used2026-03-23
Observations (807)
Date Type RA Dec Mag Band Observatory
2013-01-10 10:20:21 C 10 40 14.16 +06 40 04.9 r G96
2013-01-10 10:31:37 C 10 40 13.87 +06 40 04.5 r G96
2013-02-08 11:50:21 C 10 08 11.098 +07 12 16.79 L F51
2013-02-08 12:13:12 C 10 08 09.562 +07 12 19.63 L F51
2013-02-08 12:36:06 C 10 08 08.037 +07 12 22.52 L F51
2013-02-10 11:24:07 C 10 05 02.122 +07 18 35.61 L F51
2013-02-10 12:01:57 C 10 04 59.520 +07 18 40.89 L F51
2013-02-10 12:20:15 C 10 04 58.253 +07 18 43.23 L F51
2013-02-16 06:53:09 C 09 55 22.72 +07 39 00.4 r G96
2013-02-16 07:01:31 C 09 55 22.11 +07 39 01.8 r G96
2013-02-16 07:09:51 C 09 55 21.50 +07 39 03.0 r G96
2013-02-16 07:18:54 C 09 55 20.85 +07 39 04.5 r G96
2013-02-21 10:34:39 C 09 46 30.121 +07 58 45.03 L F51
2013-02-21 10:54:38 C 09 46 28.640 +07 58 48.17 L F51
2013-03-01 03:05:17 C 09 33 18.03 +08 28 52.5 c H06
2013-03-01 03:08:47 C 09 33 17.74 +08 28 53.0 c H06
2013-03-01 03:12:19 C 09 33 17.48 +08 28 53.3 c H06
2013-03-04 07:03:41 C 09 28 02.518 +08 40 59.36 L F51
2013-03-04 07:24:16 C 09 28 01.084 +08 41 02.56 L F51
2013-03-04 07:44:46 C 09 27 59.654 +08 41 05.79 L F51
2013-03-04 08:05:16 C 09 27 58.223 +08 41 09.07 L F51
2013-03-15 04:40:26 C 09 11 42.37 +09 17 56.5 V G45
2013-03-15 07:22:10 C 09 11 33.14 +09 18 15.3 V G45
2013-03-15 07:42:11 C 09 11 31.99 +09 18 18.2 V G45
2013-03-15 08:49:50 C 09 11 28.20 +09 18 25.5 V G45
2013-11-28 03:42:20 C 20 39 41.49 -00 20 47.8 N I41
2013-11-28 04:03:30 C 20 39 46.79 -00 20 11.7 N I41
2013-11-28 04:24:03 C 20 39 51.97 -00 19 36.7 N I41
2014-01-02 01:39:28 C 23 35 38.18 +17 20 36.5 q 703
2014-01-02 01:51:04 C 23 35 40.01 +17 20 45.5 q 703
2014-01-02 02:14:15 C 23 35 43.94 +17 21 04.8 q 703
2014-12-18 12:23:57 C 10 00 23.418 +15 33 35.63 L F51
2014-12-18 12:57:34 C 10 00 23.015 +15 33 35.57 L F51
2014-12-18 13:13:27 C 10 00 22.762 +15 33 35.26 L F51
2015-01-17 10:35:09 C 09 36 51.049 +16 23 53.01 L F51
2015-01-17 10:52:31 C 09 36 50.106 +16 23 55.41 L F51
2015-01-17 13:52:41 C 09 36 40.266 +16 24 18.97 L F51
2015-01-17 14:10:27 C 09 36 39.292 +16 24 21.27 L F51
2015-01-17 14:28:14 C 09 36 38.329 +16 24 23.63 L F51
2015-01-22 09:53:31 C 09 30 10.979 +16 40 12.90 L F51
2015-01-22 10:11:01 C 09 30 09.926 +16 40 15.38 L F51
2015-01-22 10:28:34 C 09 30 08.887 +16 40 17.66 L F51
2015-02-07 08:45:34 C 09 05 40.43 +17 33 39.3 q G96
2015-02-07 08:55:20 C 09 05 39.79 +17 33 40.2 q G96
2015-02-07 09:05:06 C 09 05 39.06 +17 33 42.0 q G96
2015-02-07 09:14:52 C 09 05 38.39 +17 33 43.3 q G96
2015-03-16 04:27:07 C 08 18 27.33 +18 19 27.5 q G96
2015-03-16 04:34:29 C 08 18 27.10 +18 19 27.1 q G96
2015-03-16 04:41:51 C 08 18 26.91 +18 19 27.8 q G96
2015-03-16 04:49:13 C 08 18 26.58 +18 19 26.6 q G96