87684 (2000 SY2)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6427310291 ± 1.56e-08
Semi-major axis (a)0.8586995623 AU ± 2.46e-10
Inclination (i)19.21959384° ± 1.69e-06
Long. of Asc. Node (Ω)161.99788506° ± 4.24e-06
Arg. of Perihelion (ω)47.81747450° ± 3.97e-06
Mean Anomaly (M)318.46077430° ± 3.44e-06
Mean Motion (n)1.2386551535°/day ± 5.32e-10
Perihelion dist (q)0.30678671 AU ± 1.34e-08
Aphelion dist (Q)1.41061242 AU ± 1.34e-08
Orbital Period0.79572291 yr ± 3.42e-10
Physical Parameters
H (abs. magnitude)15.96
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.223″
Uncertainty0
Orbit TypeAten
MOID0.047325 AU
Observations Used2046
Oppositions12
Arc Total1977-2025
First Observation Used1977-10-07
Last Observation Used2025-11-17
Observations (2354)
Date Type RA Dec Mag Band Observatory
2019-10-27 06:31:49 C 20 25 26.32 -31 09 24.5 V T08
2019-10-27 06:51:27 C 20 25 30.38 -31 09 17.8 V T08
2019-10-27 06:57:42 C 20 25 31.66 -31 09 15.8 V T08
2019-10-29 06:22:13 C 20 35 09.74 -30 53 21.1 V T05
2019-10-29 06:26:13 C 20 35 10.52 -30 53 20.0 V T05
2019-10-29 06:51:34 C 20 35 15.42 -30 53 10.3 V T05
2019-10-31 06:22:46 C 20 44 18.70 -30 35 22.9 V T08
2019-10-31 06:34:12 C 20 44 20.76 -30 35 18.3 V T08
2019-10-31 06:38:17 C 20 44 21.49 -30 35 16.7 V T08
2019-10-31 07:00:26 C 20 44 25.50 -30 35 07.9 V T08
2019-11-01 09:00:34 C 20 49 08.90 -30 24 34.1 q E89
2019-11-01 09:29:51 C 20 49 13.99 -30 24 21.6 q E89
2019-11-01 09:44:05 C 20 49 16.54 -30 24 14.9 q E89
2019-11-01 09:58:10 C 20 49 19.02 -30 24 10.1 q E89
2019-11-04 09:22:40 C 21 01 31.14 -29 53 47.6 q E89
2019-11-04 09:48:56 C 21 01 35.38 -29 53 35.6 q E89
2019-11-10 06:34:45 C 21 22 57.36 -28 48 18.5 V T05
2019-11-10 06:39:23 C 21 22 58.02 -28 48 15.9 V T05
2019-11-10 06:48:19 C 21 22 59.22 -28 48 11.6 V T05
2019-11-10 07:02:55 C 21 23 01.25 -28 48 03.9 V T05
2019-11-14 06:40:10 C 21 35 55.73 -28 00 52.5 V T05
2019-11-14 06:47:41 C 21 35 56.67 -28 00 48.2 V T05
2019-11-14 06:52:17 C 21 35 57.24 -28 00 46.4 V T05
2019-11-14 07:07:22 C 21 35 59.16 -28 00 38.4 V T05
2019-11-23 02:00:18 C 22 01 10.51 -26 12 15.3 V 703
2019-11-23 02:08:35 C 22 01 11.38 -26 12 11.2 V 703
2019-11-23 02:16:53 C 22 01 12.23 -26 12 06.9 V 703
2019-11-23 02:25:10 C 22 01 13.17 -26 12 02.8 V 703
2019-11-24 06:29:08 C 22 04 18.30 -25 57 15.7 V T08
2019-11-24 06:33:51 C 22 04 18.83 -25 57 13.6 V T08
2019-11-24 06:42:31 C 22 04 19.75 -25 57 08.8 V T08
2019-11-24 06:57:18 C 22 04 21.31 -25 57 00.9 V T08
2019-11-30 05:15:20 C 22 19 17.98 -24 41 31.7 V T05
2019-11-30 05:20:36 C 22 19 18.46 -24 41 28.1 V T05
2019-11-30 05:30:33 C 22 19 19.44 -24 41 23.0 V T05
2019-11-30 05:45:12 C 22 19 20.91 -24 41 15.8 V T05
2019-12-04 07:05:22 C 22 28 59.49 -23 49 00.4 V T05
2019-12-04 07:09:35 C 22 28 59.91 -23 48 58.5 V T05
2019-12-04 07:19:04 C 22 29 00.73 -23 48 54.5 V T05
2019-12-04 07:35:18 C 22 29 02.35 -23 48 44.0 V T05
2019-12-06 01:30:24 C 22 33 04.68 -23 26 10.8 V 703
2019-12-06 01:38:22 C 22 33 05.46 -23 26 05.5 V 703
2019-12-06 01:46:21 C 22 33 06.22 -23 26 00.9 V 703
2019-12-06 01:54:21 C 22 33 07.07 -23 25 55.3 V 703
2019-12-10 05:59:23 C 22 42 30.09 -22 31 39.8 V T08
2019-12-10 06:04:08 C 22 42 30.48 -22 31 38.1 V T08
2019-12-10 06:11:33 C 22 42 31.18 -22 31 33.4 V T08
2019-12-10 06:26:54 C 22 42 32.59 -22 31 25.1 V T08
2019-12-16 05:37:04 C 22 55 28.28 -21 13 17.1 V T05
2019-12-16 06:04:32 C 22 55 30.70 -21 13 01.6 V T05