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
2004-09-26 08:39:42 C 02 09 49.52 -26 13 56.2 r H41
2004-10-02 07:59:24 C 01 33 32.10 -30 42 35.4 o 699
2004-10-02 08:11:06 C 01 33 29.19 -30 42 52.6 o 699
2004-10-02 08:22:48 C 01 33 26.29 -30 43 09.9 o 699
2004-10-02 08:34:29 C 01 33 23.38 -30 43 26.7 o 699
2004-10-06 09:01:37 C 01 11 10.95 -32 39 18.4 r E14
2004-10-06 09:37:26 C 01 11 03.07 -32 39 54.7 r E14
2004-10-06 10:18:21 C 01 10 54.02 -32 40 35.3 r E14
2004-10-06 13:03:31 C 01 10 17.22 -32 43 19.4 r E12
2004-10-06 13:18:20 C 01 10 13.90 -32 43 33.5 r E12
2004-10-06 13:32:59 C 01 10 10.61 -32 43 47.5 r E12
2004-10-06 13:47:30 C 01 10 07.34 -32 44 01.4 r E12
2004-10-08 09:45:04 C 01 00 52.05 -33 21 04.1 r E14
2004-10-08 12:11:45 C 01 00 21.34 -33 22 58.1 r E14
2004-10-08 14:47:36 C 00 59 48.48 -33 24 52.8 r E14
2004-10-14 05:27:01 C 00 35 09.61 -34 29 23.9 o 699
2004-10-14 05:45:48 C 00 35 06.48 -34 29 27.8 o 699
2004-10-14 06:04:37 C 00 35 03.29 -34 29 33.6 o 699
2004-10-14 06:23:25 C 00 35 00.10 -34 29 38.3 o 699
2004-10-30 11:57:21 C 23 52 31.64 -33 36 56.7 r E12
2004-10-30 12:10:55 C 23 52 30.71 -33 36 51.7 r E12
2004-10-30 12:24:33 C 23 52 29.79 -33 36 46.0 r E12
2004-10-30 12:38:07 C 23 52 28.95 -33 36 41.6 r E12
2004-11-23 11:54:23 C 23 40 25.28 -28 43 46.9 r E12
2004-11-23 12:10:09 C 23 40 25.39 -28 43 37.4 r E12
2004-11-23 12:25:56 C 23 40 25.50 -28 43 28.5 r E12
2004-11-23 12:41:43 C 23 40 25.62 -28 43 19.4 r E12
2004-11-24 12:05:07 C 23 40 41.46 -28 29 50.3 r E12
2004-11-24 12:17:15 C 23 40 41.64 -28 29 42.3 r E12
2004-11-24 12:29:26 C 23 40 41.78 -28 29 36.1 r E12
2004-11-24 12:41:39 C 23 40 41.91 -28 29 28.3 r E12
2004-12-22 02:12:13 C 00 01 12.56 -21 52 58.8 d 703
2004-12-22 02:24:36 C 00 01 13.17 -21 52 51.2 d 703
2004-12-22 02:49:11 C 00 01 14.18 -21 52 36.4 d 703
2005-09-06 02:06:12 C 05 01 00.04 +02 57 14.4 o 461
2005-09-06 02:08:23 C 05 01 00.17 +02 57 13.0 o 461
2005-09-06 02:10:33 C 05 01 00.30 +02 57 11.5 o 461
2005-09-06 02:12:44 C 05 01 00.42 +02 57 10.1 o 461
2005-09-06 02:14:55 C 05 01 00.55 +02 57 08.4 o 461
2005-09-09 09:55:38 C 05 05 47.22 +01 58 07.5 19.3 c 704
2005-09-09 10:12:04 C 05 05 48.14 +01 57 54.8 19.9 c 704
2005-09-09 10:28:18 C 05 05 49.05 +01 57 42.1 19.6 c 704
2005-09-09 10:44:31 C 05 05 49.94 +01 57 29.8 19.5 c 704
2005-10-10 17:07:42 C 05 39 47.70 -12 16 57.9 r E12
2005-10-10 17:20:16 C 05 39 48.02 -12 17 18.2 r E12
2005-10-10 17:33:06 C 05 39 48.31 -12 17 38.9 r E12
2005-10-10 17:46:22 C 05 39 48.63 -12 18 00.3 r E12
2005-10-11 09:33:23 C 05 40 13.90 -12 43 48.3 o 699
2005-10-11 10:03:42 C 05 40 14.57 -12 44 38.3 o 699
2005-10-11 10:34:00 C 05 40 15.21 -12 45 28.9 o 699