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
2004-09-11 18:43:36 C 03 37 19.70 -08 14 47.3 r 379
2004-09-11 18:45:44 C 03 37 19.22 -08 14 54.7 r 379
2004-09-11 18:50:03 C 03 37 18.25 -08 15 10.3 r 379
2004-09-11 18:52:12 C 03 37 17.72 -08 15 17.7 r 379
2004-09-11 18:54:20 C 03 37 17.27 -08 15 24.7 r 379
2004-09-11 18:56:30 C 03 37 16.77 -08 15 32.9 r 379
2004-09-13 18:34:51 C 03 26 27.34 -11 02 41.5 r 379
2004-09-13 18:37:01 C 03 26 26.82 -11 02 49.1 r 379
2004-09-13 18:39:10 C 03 26 26.29 -11 02 56.1 r 379
2004-09-13 18:41:18 C 03 26 25.80 -11 03 03.8 r 379
2004-09-13 18:45:37 C 03 26 24.74 -11 03 18.7 r 379
2004-09-16 09:41:57 C 03 11 23.99 -14 39 54.8 r H41
2004-09-16 09:44:03 C 03 11 23.47 -14 40 02.3 r H41
2004-09-16 09:45:06 C 03 11 23.20 -14 40 05.4 r H41
2004-09-16 09:45:58 C 03 11 22.97 -14 40 08.4 r H41
2004-09-16 09:46:56 C 03 11 22.74 -14 40 11.7 r H41
2004-09-16 09:47:53 C 03 11 22.49 -14 40 14.6 r H41
2004-09-18 09:29:05 C 02 59 31.64 -17 18 07.8 r H41
2004-09-18 09:30:39 C 02 59 31.23 -17 18 12.9 r H41
2004-09-18 09:31:59 C 02 59 30.88 -17 18 17.2 r H41
2004-09-18 09:33:12 C 02 59 30.56 -17 18 21.0 r H41
2004-09-18 09:34:18 C 02 59 30.26 -17 18 24.8 r H41
2004-09-19 02:26:13 C 02 55 13.96 -18 12 31.5 d A56
2004-09-19 02:28:20 C 02 55 13.40 -18 12 38.3 d A56
2004-09-19 02:32:39 C 02 55 12.27 -18 12 51.7 d A56
2004-09-19 02:40:38 C 02 55 10.17 -18 13 17.2 d A56
2004-09-19 02:46:25 C 02 55 08.68 -18 13 35.6 d A56
2004-09-20 18:02:00 C 02 45 03.34 -20 14 27.0 r E12
2004-09-20 18:15:28 C 02 44 59.74 -20 15 07.5 r E12
2004-09-20 18:28:59 C 02 44 56.15 -20 15 47.8 r E12
2004-09-20 18:42:28 C 02 44 52.55 -20 16 28.2 r E12
2004-09-21 08:24:38 C 02 41 20.78 -20 57 46.0 14.9 c 704
2004-09-21 08:41:31 C 02 41 16.25 -20 58 36.0 15.5 c 704
2004-09-21 08:58:25 C 02 41 11.74 -20 59 26.1 15.4 c 704
2004-09-21 09:15:20 C 02 41 07.19 -21 00 15.6 15.7 c 704
2004-09-21 09:32:12 C 02 41 02.66 -21 01 05.5 15.6 c 704
2004-09-21 09:35:13 C 02 41 01.43 -21 01 14.2 r H41
2004-09-21 09:36:31 C 02 41 01.09 -21 01 18.0 r H41
2004-09-21 09:37:54 C 02 41 00.71 -21 01 22.1 r H41
2004-09-21 09:39:02 C 02 41 00.42 -21 01 25.3 r H41
2004-09-21 09:40:06 C 02 41 00.11 -21 01 28.7 r H41
2004-09-22 17:44:02 C 02 32 37.81 -22 33 07.8 r 379
2004-09-22 17:45:42 C 02 32 37.37 -22 33 12.0 r 379
2004-09-22 17:47:21 C 02 32 36.88 -22 33 16.6 r 379
2004-09-22 17:50:39 C 02 32 36.00 -22 33 25.7 r 379
2004-09-22 17:52:17 C 02 32 35.59 -22 33 30.4 r 379
2004-09-26 08:33:35 C 02 09 51.14 -26 13 42.6 r H41
2004-09-26 08:35:58 C 02 09 50.49 -26 13 48.2 r H41
2004-09-26 08:37:32 C 02 09 50.08 -26 13 51.3 r H41
2004-09-26 08:38:40 C 02 09 49.78 -26 13 54.3 r H41