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
2022-04-24 01:33:47 C 09 30 08.743 -15 41 18.20 V W68
2022-04-24 01:37:44 C 09 30 08.400 -15 41 16.58 V W68
2022-04-24 01:48:55 C 09 30 07.543 -15 41 12.80 V W68
2022-04-24 02:03:21 C 09 30 06.398 -15 41 07.58 V W68
2022-04-24 04:08:28 C 09 29 57.077 -15 40 37.96 V 703
2022-04-24 04:16:13 C 09 29 56.483 -15 40 34.57 V 703
2022-04-24 04:23:58 C 09 29 55.864 -15 40 32.27 V 703
2022-04-24 04:31:43 C 09 29 55.280 -15 40 29.68 V 703
2022-04-25 01:47:54 C 09 28 20.827 -15 32 42.32 V W68
2022-04-25 01:56:06 C 09 28 20.196 -15 32 39.12 V W68
2022-04-25 02:00:42 C 09 28 19.841 -15 32 37.68 V W68
2022-04-25 02:19:40 C 09 28 18.446 -15 32 30.73 V W68
2022-04-27 03:59:52 C 09 24 49.532 -15 15 19.37 V 703
2022-04-27 04:07:48 C 09 24 48.899 -15 15 16.49 V 703
2022-04-27 04:15:43 C 09 24 48.398 -15 15 12.42 V 703
2022-04-27 04:23:39 C 09 24 47.822 -15 15 11.16 V 703
2022-04-27 20:08:42 C 09 23 44.954 -15 09 46.04 V A16
2022-04-27 20:24:46 C 09 23 43.850 -15 09 40.46 V A16
2022-04-27 20:45:31 C 09 23 42.442 -15 09 33.16 V A16
2022-04-28 01:16:42 C 09 23 24.722 -15 07 42.60 V W68
2022-04-28 01:22:08 C 09 23 24.305 -15 07 40.91 V W68
2022-04-28 01:30:43 C 09 23 23.726 -15 07 37.92 V W68
2022-04-28 01:48:44 C 09 23 22.483 -15 07 31.98 V W68
2022-04-29 01:35:21 C 09 21 51.211 -14 59 23.35 V W68
2022-04-29 01:40:37 C 09 21 50.875 -14 59 21.30 V W68
2022-04-29 01:50:44 C 09 21 50.218 -14 59 17.56 V W68
2022-04-29 02:06:09 C 09 21 49.186 -14 59 12.98 V W68
2022-05-02 00:29:13 C 09 17 39.766 -14 35 48.16 V W68
2022-05-02 00:36:28 C 09 17 39.331 -14 35 45.42 V W68
2022-05-02 00:41:51 C 09 17 39.005 -14 35 44.12 V W68
2022-05-02 00:57:26 C 09 17 38.117 -14 35 38.87 V W68
2022-05-02 03:43:34 C 09 17 28.878 -14 35 00.02 V 703
2022-05-02 03:52:08 C 09 17 28.428 -14 34 57.14 V 703
2022-05-02 04:09:15 C 09 17 27.355 -14 34 51.78 V 703
2022-05-03 01:10:25 C 09 16 19.001 -14 27 51.59 V W68
2022-05-03 01:16:15 C 09 16 18.667 -14 27 49.90 V W68
2022-05-03 01:28:51 C 09 16 17.998 -14 27 45.43 V W68
2022-05-03 01:49:06 C 09 16 16.836 -14 27 38.77 V W68
2022-05-05 03:13:19 C 09 13 46.384 -14 12 30.64 V G96
2022-05-05 03:29:47 C 09 13 45.563 -14 12 25.56 V G96
2022-05-05 03:38:00 C 09 13 45.098 -14 12 22.93 V G96
2022-05-06 03:49:57 C 09 12 36.202 -14 05 05.46 V 703
2022-05-06 03:57:59 C 09 12 35.766 -14 05 02.83 V 703
2022-05-06 04:06:02 C 09 12 35.341 -14 05 00.46 V 703
2022-05-06 04:14:05 C 09 12 35.028 -14 04 57.76 V 703
2022-05-12 01:36:17 C 09 06 50.858 -13 25 36.55 V W68
2022-05-12 01:42:24 C 09 06 50.616 -13 25 35.62 V W68
2022-05-12 01:52:15 C 09 06 50.206 -13 25 32.95 V W68
2022-05-12 02:06:50 C 09 06 49.740 -13 25 27.48 V W68
2022-05-20 01:25:39 C 09 01 09.466 -12 41 25.01 V W68