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
2005-12-08 11:19:13 C 02 05 26.70 -70 51 09.4 r 423
2005-12-08 11:49:12 C 02 05 03.98 -70 51 43.9 r 423
2005-12-08 11:59:13 C 02 04 56.36 -70 51 55.4 r 423
2005-12-11 02:27:11 C 01 16 18.20 -71 41 52.3 c 844
2005-12-11 02:42:05 C 01 16 06.01 -71 41 57.6 c 844
2005-12-11 02:52:02 C 01 15 57.78 -71 42 01.3 c 844
2007-11-14 02:01:24 C 20 18 29.73 -25 58 10.7 r 703
2007-11-14 02:10:01 C 20 18 31.42 -25 58 08.9 r 703
2007-11-14 02:18:35 C 20 18 33.19 -25 58 07.6 r 703
2008-08-28 10:32:37 C 04 17 01.43 +07 39 19.0 r H45
2008-08-28 10:33:24 C 04 17 01.37 +07 39 17.4 r H45
2008-08-28 10:34:06 C 04 17 01.30 +07 39 15.9 r H45
2008-08-28 10:35:01 C 04 17 01.23 +07 39 14.1 r H45
2008-08-28 10:36:05 C 04 17 01.15 +07 39 11.9 r H45
2008-08-28 10:37:41 C 04 17 01.01 +07 39 08.5 r H45
2008-09-10 02:20:00 C 03 47 57.72 -03 57 50.5 r 130
2008-09-10 02:22:14 C 03 47 57.43 -03 57 56.4 r 130
2008-09-10 02:23:55 C 03 47 57.23 -03 58 00.5 r 130
2008-09-10 02:26:43 C 03 47 56.88 -03 58 07.7 r 130
2008-09-14 03:11:26 C 03 35 28.00 -08 06 22.8 r J51
2008-09-14 03:17:35 C 03 35 27.12 -08 06 38.9 r J51
2008-09-14 03:23:45 C 03 35 26.23 -08 06 54.9 r J51
2008-09-15 01:51:18 C 03 32 16.50 -09 05 41.4 v 204
2008-09-15 01:54:20 C 03 32 16.05 -09 05 49.4 v 204
2008-09-15 01:57:21 C 03 32 15.60 -09 05 57.3 v 204
2008-09-15 06:44:29 C 03 31 34.54 -09 18 01.5 r 808
2008-09-21 02:14:53 C 03 09 35.48 -15 23 27.5 r J51
2008-09-21 02:20:53 C 03 09 34.43 -15 23 43.0 r J51
2008-09-21 02:26:52 C 03 09 33.37 -15 23 58.5 r J51
2008-10-25 14:00:46 C 00 38 41.06 -33 47 55.6 r E12
2008-10-25 14:10:12 C 00 38 39.80 -33 47 55.7 r E12
2008-10-25 14:19:38 C 00 38 38.61 -33 47 55.9 r E12
2008-10-25 14:29:03 C 00 38 37.35 -33 47 56.0 r E12
2008-10-28 01:57:59 C 00 31 34.53 -33 46 21.9 c 808
2008-10-28 02:08:59 C 00 31 33.42 -33 46 21.1 c 808
2008-10-28 02:54:19 C 00 31 27.83 -33 46 16.7 c 808
2008-10-28 03:12:19 C 00 31 25.84 -33 46 15.6 c 808
2008-11-06 01:58:29 C 00 12 17.93 -32 56 20.0 r 808
2008-11-06 02:09:29 C 00 12 17.16 -32 56 16.2 r 808
2008-11-06 02:19:29 C 00 12 16.36 -32 56 12.4 r 808
2008-11-08 01:23:59 C 00 09 17.24 -32 38 38.4 r 808
2008-11-08 01:33:29 C 00 09 16.59 -32 38 35.2 r 808
2008-11-08 01:44:30 C 00 09 15.94 -32 38 30.8 r 808
2008-11-09 01:15:29 C 00 07 55.20 -32 29 05.6 r 808
2008-11-09 01:25:30 C 00 07 54.60 -32 29 01.3 r 808
2008-11-09 01:34:59 C 00 07 54.02 -32 28 57.5 r 808
2008-11-12 12:07:24 C 00 03 53.06 -31 52 59.0 r E12
2008-11-12 12:23:34 C 00 03 52.34 -31 52 51.1 r E12
2008-11-12 12:39:49 C 00 03 51.62 -31 52 43.2 r E12
2008-11-12 12:56:04 C 00 03 50.86 -31 52 35.9 r E12