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
2008-12-02 02:26:37 C 23 57 28.47 -27 38 11.7 r 703
2008-12-02 02:35:57 C 23 57 28.51 -27 38 05.7 r 703
2008-12-02 02:45:18 C 23 57 28.58 -27 37 59.6 r 703
2008-12-02 02:54:35 C 23 57 28.58 -27 37 54.9 r 703
2008-12-13 17:04:10 C 00 02 45.43 -24 48 57.8 17.5 o C20
2008-12-17 16:51:59 C 00 05 36.74 -23 49 29.6 18.5 r C20
2008-12-17 16:54:05 C 00 05 36.83 -23 49 28.3 18.6 r C20
2008-12-18 16:57:18 C 00 06 24.04 -23 34 26.8 18.1 o C20
2008-12-18 16:59:24 C 00 06 24.10 -23 34 24.9 17.9 o C20
2008-12-19 17:14:55 C 00 07 13.38 -23 19 13.9 17.9 r C20
2008-12-20 17:01:56 C 00 08 03.18 -23 04 18.9 18.3 r C20
2008-12-20 17:04:03 C 00 08 03.26 -23 04 16.9 18.6 r C20
2009-01-03 01:55:07 C 00 21 27.86 -19 39 53.4 r 703
2009-01-03 02:02:16 C 00 21 28.11 -19 39 49.1 r 703
2009-01-03 02:09:22 C 00 21 28.44 -19 39 43.7 r 703
2009-01-03 02:16:27 C 00 21 28.80 -19 39 40.7 r 703
2009-01-28 16:14:43 C 00 55 32.78 -12 51 30.9 18.0 o C20
2009-01-28 16:16:50 C 00 55 32.91 -12 51 29.3 18.0 o C20
2009-09-09 17:41:53 C 05 17 35.12 +02 17 12.1 r E12
2009-09-09 18:12:30 C 05 17 37.17 +02 16 50.0 r E12
2009-09-09 18:27:54 C 05 17 38.22 +02 16 38.8 r E12
2009-10-09 10:04:09 C 06 01 56.27 -10 10 58.7 17.4 c 704
2009-10-09 10:23:06 C 06 01 57.27 -10 11 27.2 17.9 c 704
2009-10-09 10:42:14 C 06 01 58.29 -10 11 55.2 17.8 c 704
2009-10-09 11:01:15 C 06 01 59.28 -10 12 22.8 18.0 c 704
2009-10-09 11:20:18 C 06 02 00.28 -10 12 51.1 17.6 c 704
2009-10-11 23:26:29 C 06 05 17.63 -11 44 13.1 18.2 o C20
2009-10-11 23:30:37 C 06 05 17.84 -11 44 19.9 18.2 o C20
2009-10-12 22:53:04 C 06 06 33.25 -12 21 26.0 18.4 o C20
2009-10-12 22:57:11 C 06 06 33.43 -12 21 32.5 17.9 o C20
2009-10-16 01:46:49 C 06 10 29.06 -14 26 35.4 17.8 o C20
2009-10-16 01:50:55 C 06 10 29.26 -14 26 42.5 18.0 o C20
2009-10-17 01:52:08 C 06 11 43.33 -15 08 58.2 17.6 o C20
2009-10-23 17:04:00 C 06 19 34.20 -20 17 27.3 r E12
2009-10-23 17:31:31 C 06 19 35.38 -20 18 25.5 r E12
2009-10-27 01:40:47 C 06 23 19.00 -23 15 02.1 17.5 o C20
2009-10-27 01:44:54 C 06 23 19.17 -23 15 11.7 17.3 o C20
2009-11-09 16:42:41 C 06 37 30.24 -38 10 45.8 r D25
2009-11-09 16:55:23 C 06 37 30.69 -38 11 27.0 r D25
2011-11-19 10:59:45 C 21 06 55.86 -25 58 19.0 r E12
2011-11-19 11:32:20 C 21 07 01.07 -25 58 05.7 r E12
2011-11-23 00:25:36 C 21 20 14.27 -25 23 14.3 o 844
2011-11-23 00:30:14 C 21 20 14.92 -25 23 11.8 o 844
2011-11-23 00:36:12 C 21 20 15.89 -25 23 10.3 o 844
2011-11-23 00:46:54 C 21 20 17.42 -25 23 04.2 o 844
2011-11-26 11:17:23 C 21 32 18.58 -24 46 50.1 r E12
2012-08-07 04:19:37 C 04 17 24.88 +17 46 24.3 t 954
2012-08-07 04:49:36 C 04 17 24.44 +17 45 48.3 t 954
2012-08-08 01:59:34 C 04 17 08.67 +17 20 01.5 o 071
2012-08-08 02:01:44 C 04 17 08.63 +17 19 59.5 o 071