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
2015-03-16 08:51:12 C 08 18 19.213 +18 19 20.67 L F51
2015-03-16 09:08:58 C 08 18 18.665 +18 19 19.90 L F51
2015-03-16 09:26:38 C 08 18 18.101 +18 19 19.40 L F51
2015-03-16 09:44:13 C 08 18 17.567 +18 19 18.92 L F51
2016-12-23 14:37:08 C 09 11 12.824 +23 15 24.27 L F51
2016-12-23 15:13:25 C 09 11 11.391 +23 15 28.92 L F51
2016-12-23 15:31:39 C 09 11 10.664 +23 15 31.18 L F51
2017-01-21 21:32:36 C 08 31 37.27 +24 48 43.7 q K88
2017-01-21 21:47:52 C 08 31 36.33 +24 48 45.2 q K88
2017-01-21 22:03:06 C 08 31 35.28 +24 48 47.3 q K88
2017-01-26 06:52:12 C 08 24 26.56 +24 58 01.8 q G96
2017-01-26 06:58:24 C 08 24 26.10 +24 58 02.6 q G96
2017-01-26 07:04:39 C 08 24 25.66 +24 58 02.9 q G96
2017-01-26 07:10:52 C 08 24 25.19 +24 58 03.5 q G96
2017-01-31 06:44:54 C 08 16 20.11 +25 05 29.1 q G96
2017-01-31 06:51:13 C 08 16 19.62 +25 05 30.2 q G96
2017-01-31 06:57:31 C 08 16 19.20 +25 05 30.7 q G96
2017-01-31 07:03:44 C 08 16 18.76 +25 05 30.6 q G96
2018-12-14 14:55:47 C 08 28 17.990 +30 25 07.97 U F51
2018-12-14 15:12:31 C 08 28 17.162 +30 25 10.75 U F51
2018-12-14 15:29:19 C 08 28 16.345 +30 25 13.38 U F51
2019-01-04 07:13:31 C 07 57 36.27 +31 32 46.6 V G96
2019-01-04 07:21:06 C 07 57 35.72 +31 32 47.8 V G96
2019-01-04 07:45:47 C 07 57 33.86 +31 32 50.1 V G96
2019-01-09 08:42:48 C 07 48 36.777 +31 40 56.20 U F51
2019-01-09 09:17:08 C 07 48 34.163 +31 40 57.88 U F51
2019-01-30 07:04:49 C 07 13 02.02 +31 21 25.9 V G96
2019-01-30 07:12:20 C 07 13 01.57 +31 21 25.2 V G96
2019-01-30 07:19:52 C 07 13 01.08 +31 21 24.4 V G96
2020-07-27 11:38:45 C 05 22 00.38 +33 28 32.9 U I41
2020-07-29 11:32:00 C 05 27 36.61 +33 38 51.4 U I41
2020-07-29 11:42:01 C 05 27 37.72 +33 38 53.4 U I41
2020-07-29 11:49:17 C 05 27 38.57 +33 38 55.0 U I41
2020-08-14 11:53:12 C 06 09 21.54 +34 32 49.5 U I41
2020-08-16 11:49:19 C 06 14 09.49 +34 36 40.9 U I41
2020-08-16 11:56:18 C 06 14 10.19 +34 36 41.3 U I41
2020-08-16 12:03:16 C 06 14 10.87 +34 36 41.8 U I41
2020-10-18 14:14:21 C 07 53 48.867 +35 24 52.50 U F52
2020-10-18 14:29:02 C 07 53 49.230 +35 24 53.79 U F52
2020-10-18 14:43:45 C 07 53 49.628 +35 24 55.23 U F52
2020-10-18 14:58:29 C 07 53 49.969 +35 24 56.85 U F52
2020-10-22 11:06:33 C 07 55 59.39 +35 34 02.6 V G96
2020-10-22 11:14:02 C 07 55 59.56 +35 34 03.4 V G96
2020-10-22 11:21:29 C 07 55 59.70 +35 34 04.0 V G96
2020-10-22 11:28:57 C 07 55 59.84 +35 34 04.9 V G96
2020-10-24 14:10:22 C 07 56 56.130 +35 39 48.65 U F51
2020-10-24 14:27:15 C 07 56 56.399 +35 39 50.43 U F51
2020-10-24 14:44:14 C 07 56 56.629 +35 39 52.82 U F51
2020-11-13 11:58:56 C 07 56 03.306 +36 57 21.81 U F52
2020-11-13 12:15:31 C 07 56 02.871 +36 57 25.20 U F52