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
2001-10-13 02:01:22 C 05 16 07.51 -15 21 10.2 c 113
2001-10-13 02:03:35 C 05 16 07.50 -15 21 13.9 c 113
2001-10-13 02:05:47 C 05 16 07.54 -15 21 17.2 c 113
2001-10-15 09:51:32 C 05 15 33.69 -17 02 25.7 16.9 c 704
2001-10-15 10:13:59 C 05 15 33.29 -17 03 07.3 17.3 c 704
2001-10-15 10:36:24 C 05 15 32.93 -17 03 48.9 17.4 c 704
2001-10-15 10:58:57 C 05 15 32.52 -17 04 30.4 17.1 c 704
2001-10-15 11:21:36 C 05 15 32.10 -17 05 12.8 17.1 c 704
2001-10-23 10:08:24 C 05 10 18.34 -23 25 58.5 17.2 c 704
2001-10-23 10:31:38 C 05 10 17.26 -23 26 47.8 17.3 c 704
2001-10-23 10:54:37 C 05 10 16.20 -23 27 36.7 17.2 c 704
2001-10-23 11:16:25 C 05 10 16.00 -23 28 22.2 17.6 c 608
2001-10-23 11:17:28 C 05 10 15.11 -23 28 25.2 17.4 c 704
2001-10-23 11:31:43 C 05 10 15.29 -23 28 55.1 17.6 c 608
2001-10-23 11:40:18 C 05 10 14.03 -23 29 13.7 17.4 c 704
2001-10-23 11:47:08 C 05 10 14.55 -23 29 28.0 17.8 c 608
2001-10-27 06:40:53 C 05 05 35.00 -26 47 59.3 c 860
2001-10-27 06:43:50 C 05 05 34.83 -26 48 06.4 c 860
2001-10-27 06:46:48 C 05 05 34.76 -26 48 11.9 c 860
2001-12-01 04:25:39 C 02 32 11.97 -54 28 40.9 c 844
2001-12-01 04:30:18 C 02 32 10.49 -54 28 45.1 c 844
2001-12-01 04:49:22 C 02 32 04.36 -54 29 01.0 c 844
2001-12-30 11:06:05 C 23 05 29.320 -50 27 50.48 e 413
2001-12-30 11:07:56 C 23 05 28.824 -50 27 48.15 e 413
2001-12-30 11:09:47 C 23 05 28.333 -50 27 45.90 e 413
2002-01-01 10:28:14 C 22 53 09.93 -49 28 21.3 e 413
2002-01-01 10:29:46 C 22 53 09.53 -49 28 19.2 e 413
2002-01-01 10:31:16 C 22 53 09.15 -49 28 17.1 e 413
2002-09-30 03:22:24 C 08 26 07.59 -00 00 54.3 c 118
2002-09-30 03:23:50 C 08 26 07.89 -00 00 56.9 c 118
2002-09-30 03:30:55 C 08 26 09.32 -00 01 02.6 c 118
2002-09-30 03:32:30 C 08 26 09.54 -00 01 03.6 c 118
2003-12-27 10:44:22 C 22 35 28.16 -18 25 23.6 r 413
2003-12-27 10:52:21 C 22 35 29.07 -18 25 19.3 r 413
2004-08-26 10:24:26 C 04 49 21.77 +12 40 46.8 o 699
2004-08-26 10:36:08 C 04 49 19.84 +12 40 17.2 o 699
2004-08-26 10:47:50 C 04 49 17.95 +12 39 45.9 o 699
2004-08-26 10:59:32 C 04 49 16.09 +12 39 14.4 o 699
2004-09-04 02:46:59 C 04 14 32.06 +02 16 50.5 o 204
2004-09-04 02:47:44 C 04 14 31.90 +02 16 48.2 o 204
2004-09-04 02:48:28 C 04 14 31.77 +02 16 45.9 o 204
2004-09-04 02:49:12 C 04 14 31.63 +02 16 43.5 o 204
2004-09-04 02:54:08 C 04 14 30.69 +02 16 27.3 o 204
2004-09-08 18:17:01 C 03 52 50.78 -04 00 46.5 r 379
2004-09-08 18:25:37 C 03 52 48.95 -04 01 16.7 r 379
2004-09-08 18:29:55 C 03 52 48.01 -04 01 31.4 r 379
2004-09-08 18:34:12 C 03 52 47.11 -04 01 45.9 r 379
2004-09-10 15:38:44 C 03 43 16.76 -06 38 54.8 r E17
2004-09-11 18:37:09 C 03 37 21.17 -08 14 24.4 r 379
2004-09-11 18:41:26 C 03 37 20.20 -08 14 39.6 r 379