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
1977-10-07 14:59:09 02 52 17.08 -23 30 37.3 260
1977-10-07 16:09:10 02 52 05.71 -23 32 45.4 260
1977-11-11 11:53:41 00 46 47.56 -33 25 12.3 260
1977-11-11 13:13:41 00 46 39.59 -33 24 52.6 260
2000-09-20 07:35:52 C 02 07 30.87 -29 11 39.8 14.2 c 704
2000-09-20 07:56:59 C 02 07 21.65 -29 12 44.3 14.1 c 704
2000-09-20 08:19:19 C 02 07 11.97 -29 13 53.6 16.2 c 704
2000-09-20 08:40:48 C 02 07 02.60 -29 15 00.2 16.1 c 704
2000-09-20 09:01:47 C 02 06 53.41 -29 16 04.3 16.2 c 704
2000-09-21 05:40:11 C 01 58 16.78 -30 16 02.7 860
2000-09-21 05:41:27 C 01 58 16.28 -30 16 05.8 860
2000-09-21 05:42:43 C 01 58 15.65 -30 16 09.6 860
2000-09-21 05:44:00 C 01 58 15.12 -30 16 12.9 860
2000-09-21 07:04:46 C 01 57 40.95 -30 19 55.3 860
2000-09-21 07:06:03 C 01 57 40.36 -30 19 58.6 860
2000-09-21 07:07:19 C 01 57 39.85 -30 20 02.5 860
2000-09-21 07:08:35 C 01 57 39.30 -30 20 05.7 860
2000-09-21 07:13:47 C 01 57 37.09 -30 20 20.1 860
2000-09-21 07:15:03 C 01 57 36.58 -30 20 23.6 860
2000-09-21 07:16:21 C 01 57 36.05 -30 20 27.1 860
2000-09-21 07:17:37 C 01 57 35.51 -30 20 30.6 860
2000-09-21 07:20:55 C 01 57 37.23 -30 21 12.8 853
2000-09-21 07:21:44 C 01 57 36.90 -30 21 15.9 853
2000-09-21 07:23:36 C 01 57 36.11 -30 21 20.7 853
2000-09-21 11:39:51 C 01 55 51.55 -30 32 18.5 c 467
2000-09-21 11:51:55 C 01 55 46.53 -30 32 52.4 c 467
2000-09-21 11:55:20 C 01 55 45.11 -30 33 01.6 c 467
2000-09-21 11:57:03 C 01 55 44.36 -30 33 06.5 c 467
2000-09-21 15:26:45 C 01 54 17.74 -30 42 36.2 z 423
2000-09-21 15:53:44 C 01 54 06.42 -30 43 48.3 z 423
2000-09-21 16:31:36 C 01 53 50.60 -30 45 27.8 z 423
2000-09-21 16:38:58 C 01 53 48.15 -30 46 28.0 m 349
2000-09-21 16:40:01 C 01 53 47.68 -30 46 30.5 m 349
2000-09-21 16:40:59 C 01 53 47.41 -30 46 33.3 m 349
2000-09-21 16:41:44 C 01 53 47.00 -30 46 35.8 m 349
2000-09-21 16:42:42 C 01 53 46.56 -30 46 38.2 m 349
2000-09-22 04:51:10 C 01 48 55.04 -31 17 10.8 i 808
2000-09-22 05:16:52 C 01 48 43.40 -31 18 22.0 860
2000-09-22 05:17:19 C 01 48 44.39 -31 18 15.7 i 808
2000-09-22 05:18:06 C 01 48 42.92 -31 18 24.9 860
2000-09-22 05:19:25 C 01 48 42.31 -31 18 28.4 860
2000-09-22 13:25:14 C 01 45 31.93 -31 38 02.3 z 423
2000-09-22 13:55:13 C 01 45 19.83 -31 39 16.4 z 423
2000-09-22 14:19:13 C 01 45 10.05 -31 40 14.1 z 423
2000-09-22 15:35:58 C 01 44 38.96 -31 43 18.3 m 428
2000-09-22 15:37:33 C 01 44 38.34 -31 43 22.0 m 428
2000-09-22 15:39:09 C 01 44 37.68 -31 43 25.9 m 428
2000-09-25 03:19:27 C 01 22 21.93 -33 43 45.3 z 859
2000-09-25 03:22:28 C 01 22 20.81 -33 43 50.9 z 859
2000-09-25 03:25:31 C 01 22 19.72 -33 43 56.1 z 859