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
2022-04-06 01:24:09 C 10 12 03.295 -18 02 03.34 V W68
2022-04-06 01:31:18 C 10 12 02.484 -18 02 01.32 V W68
2022-04-06 01:48:13 C 10 12 00.442 -18 01 57.32 V W68
2022-04-08 02:08:14 C 10 06 31.034 -17 49 18.19 V W68
2022-04-08 02:18:53 C 10 06 29.791 -17 49 15.02 V W68
2022-04-08 02:25:53 C 10 06 28.990 -17 49 13.51 V W68
2022-04-08 02:45:11 C 10 06 26.765 -17 49 07.93 V W68
2022-04-09 02:33:09 C 10 03 48.199 -17 42 26.50 V W68
2022-04-09 02:38:24 C 10 03 47.614 -17 42 25.02 V W68
2022-04-09 02:46:51 C 10 03 46.630 -17 42 22.61 V W68
2022-04-09 03:16:47 C 10 03 43.253 -17 42 13.90 V W68
2022-04-09 05:08:51 C 10 03 31.061 -17 41 55.07 V 703
2022-04-09 05:16:28 C 10 03 30.265 -17 41 52.80 V 703
2022-04-09 05:24:06 C 10 03 29.390 -17 41 50.96 V 703
2022-04-09 05:31:42 C 10 03 28.451 -17 41 48.77 V 703
2022-04-09 07:00:47 C 10 03 19.042 -17 41 21.63 U F52
2022-04-09 07:16:27 C 10 03 17.257 -17 41 17.10 U F52
2022-04-09 07:32:07 C 10 03 15.474 -17 41 12.55 U F52
2022-04-09 07:47:47 C 10 03 13.685 -17 41 08.04 U F52
2022-04-12 02:51:28 C 09 56 02.534 -17 20 33.18 V W68
2022-04-12 02:58:41 C 09 56 01.757 -17 20 30.77 V W68
2022-04-12 03:02:34 C 09 56 01.337 -17 20 29.40 V W68
2022-04-12 03:44:58 C 09 55 56.794 -17 20 16.04 V W68
2022-04-14 01:54:56 C 09 51 14.203 -17 05 16.48 V W68
2022-04-14 02:03:01 C 09 51 13.375 -17 05 13.63 V W68
2022-04-14 02:07:42 C 09 51 12.830 -17 05 12.70 V W68
2022-04-14 02:54:59 C 09 51 07.891 -17 04 56.35 V W68
2022-04-16 02:40:16 C 09 46 28.169 -16 48 48.24 V W68
2022-04-16 02:45:49 C 09 46 27.629 -16 48 46.08 V W68
2022-04-16 03:18:54 C 09 46 24.355 -16 48 34.56 V W68
2022-04-16 03:35:41 C 09 46 22.656 -16 48 28.48 V W68
2022-04-17 02:24:13 C 09 44 14.170 -16 40 35.58 V W68
2022-04-17 02:36:42 C 09 44 12.931 -16 40 31.40 V W68
2022-04-17 02:57:35 C 09 44 10.896 -16 40 24.71 V W68
2022-04-17 03:01:29 C 09 44 10.522 -16 40 23.30 V W68
2022-04-19 21:16:54 C 09 38 14.791 -16 17 19.75 V A16
2022-04-19 21:37:39 C 09 38 12.994 -16 17 13.52 V A16
2022-04-19 21:58:25 C 09 38 11.105 -16 17 05.93 V A16
2022-04-20 03:27:30 C 09 37 43.262 -16 15 07.20 V 703
2022-04-20 03:35:42 C 09 37 42.575 -16 15 04.32 V 703
2022-04-20 03:43:01 C 09 37 41.371 -16 14 45.60 V W68
2022-04-20 03:43:52 C 09 37 41.862 -16 15 01.22 V 703
2022-04-20 03:47:40 C 09 37 40.954 -16 14 43.48 V W68
2022-04-20 03:52:02 C 09 37 41.081 -16 14 57.91 V 703
2022-04-20 03:56:00 C 09 37 40.200 -16 14 41.06 V W68
2022-04-20 04:10:24 C 09 37 38.964 -16 14 35.05 V W68
2022-04-21 02:34:17 C 09 35 46.087 -16 06 37.37 V W68
2022-04-21 02:38:35 C 09 35 45.713 -16 06 35.89 V W68
2022-04-21 02:47:42 C 09 35 44.954 -16 06 32.69 V W68
2022-04-21 03:03:56 C 09 35 43.510 -16 06 26.68 V W68