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
2005-10-11 11:04:17 C 05 40 15.93 -12 46 17.1 o 699
2005-10-17 07:35:30 C 05 43 10.42 -16 51 58.2 o 808
2005-10-17 07:45:29 C 05 43 10.60 -16 52 17.5 o 808
2005-10-17 07:54:29 C 05 43 10.64 -16 52 36.5 o 808
2005-11-12 05:15:30 C 05 27 32.33 -42 21 29.7 o 808
2005-11-12 05:24:50 C 05 27 31.41 -42 21 58.8 o 808
2005-11-12 05:36:29 C 05 27 30.37 -42 22 31.7 o 808
2005-11-12 05:50:29 C 05 27 29.00 -42 23 17.4 o 808
2005-11-12 06:06:29 C 05 27 27.51 -42 24 02.4 o 808
2005-11-13 06:00:30 C 05 25 14.50 -43 36 17.8 o 808
2005-11-13 06:12:29 C 05 25 13.20 -43 36 55.9 o 808
2005-11-22 05:49:41 C 04 54 03.62 -54 45 57.0 c 844
2005-11-22 05:54:23 C 04 54 02.63 -54 46 11.5 c 844
2005-11-22 05:59:03 C 04 54 01.60 -54 46 26.0 c 844
2005-11-22 06:03:46 C 04 54 00.61 -54 46 40.5 c 844
2005-11-22 06:08:28 C 04 53 59.61 -54 46 55.2 c 844
2005-11-22 06:13:11 C 04 53 58.61 -54 47 09.4 c 844
2005-11-22 06:17:53 C 04 53 57.60 -54 47 23.8 c 844
2005-11-22 06:22:33 C 04 53 56.60 -54 47 38.3 c 844
2005-11-22 06:27:17 C 04 53 55.57 -54 47 52.7 c 844
2005-11-25 17:04:58 C 04 34 12.61 -59 00 27.9 r E12
2005-11-25 17:16:09 C 04 34 09.48 -59 01 00.9 r E12
2005-11-25 17:27:14 C 04 34 06.31 -59 01 33.3 r E12
2005-11-25 17:38:22 C 04 34 03.21 -59 02 06.0 r E12
2005-12-01 05:39:07 C 03 47 38.47 -65 12 17.4 c 844
2005-12-01 05:41:49 C 03 47 37.24 -65 12 24.0 c 844
2005-12-01 05:44:33 C 03 47 36.01 -65 12 31.0 c 844
2005-12-01 05:47:17 C 03 47 34.78 -65 12 37.8 c 844
2005-12-01 05:50:02 C 03 47 33.59 -65 12 44.4 c 844
2005-12-01 05:52:45 C 03 47 32.37 -65 12 51.1 c 844
2005-12-01 05:55:26 C 03 47 31.16 -65 12 58.0 c 844
2005-12-01 05:58:07 C 03 47 29.90 -65 13 04.5 c 844
2005-12-01 12:22:08 C 03 44 41.65 -65 29 22.7 r 423
2005-12-01 12:32:09 C 03 44 37.00 -65 29 48.0 r 423
2005-12-01 12:42:08 C 03 44 32.35 -65 30 13.2 r 423
2005-12-01 12:52:09 C 03 44 27.70 -65 30 38.4 r 423
2005-12-01 13:02:09 C 03 44 23.03 -65 31 03.6 r 423
2005-12-04 10:05:25 C 03 09 15.89 -68 10 20.5 r 423
2005-12-04 10:15:24 C 03 09 10.04 -68 10 41.8 r 423
2005-12-04 10:25:25 C 03 09 04.21 -68 11 02.9 r 423
2005-12-04 10:35:24 C 03 08 58.36 -68 11 24.0 r 423
2005-12-04 10:45:25 C 03 08 52.50 -68 11 45.0 r 423
2005-12-04 10:55:24 C 03 08 46.64 -68 12 06.1 r 423
2005-12-04 11:05:24 C 03 08 40.79 -68 12 27.0 r 423
2005-12-04 11:15:25 C 03 08 34.94 -68 12 47.9 r 423
2005-12-07 11:02:56 C 02 22 54.64 -70 19 31.3 r 423
2005-12-07 11:12:57 C 02 22 47.37 -70 19 45.6 r 423
2005-12-07 11:22:56 C 02 22 40.25 -70 20 00.0 r 423
2005-12-07 12:05:56 C 02 22 09.39 -70 21 00.5 r 423
2005-12-08 11:09:12 C 02 05 34.29 -70 50 57.7 r 423