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
2019-12-16 06:09:13 C 22 55 31.04 -21 12 58.6 V T05
2019-12-16 06:19:11 C 22 55 31.96 -21 12 53.5 V T05
2019-12-17 01:55:13 C 22 57 15.99 -21 02 09.5 V 703
2019-12-17 02:03:12 C 22 57 16.69 -21 02 05.3 V 703
2019-12-17 02:11:11 C 22 57 17.42 -21 02 01.5 V 703
2019-12-17 02:19:10 C 22 57 18.26 -21 01 57.4 V 703
2019-12-20 05:56:28 C 23 03 54.54 -20 20 21.1 V T05
2019-12-20 06:01:48 C 23 03 55.02 -20 20 18.0 V T05
2019-12-20 06:10:26 C 23 03 55.78 -20 20 12.4 V T05
2019-12-20 06:26:31 C 23 03 57.14 -20 20 03.8 V T05
2019-12-28 05:37:01 C 23 20 15.73 -18 34 08.3 V T05
2019-12-28 05:41:50 C 23 20 16.10 -18 34 05.2 V T05
2019-12-28 05:51:51 C 23 20 16.98 -18 33 59.7 V T05
2019-12-28 06:08:23 C 23 20 18.32 -18 33 50.3 V T05
2020-01-24 05:18:29 C 00 13 26.98 -12 27 36.5 V T08
2020-01-24 05:23:54 C 00 13 27.41 -12 27 33.6 V T08
2020-01-24 05:31:57 C 00 13 28.12 -12 27 27.6 V T08
2020-01-24 05:48:33 C 00 13 29.47 -12 27 18.6 V T08
2020-07-03 11:06:20 C 03 25 51.36 +22 31 12.3 U I41
2020-07-03 11:13:26 C 03 25 51.43 +22 31 06.4 U I41
2020-07-03 11:20:34 C 03 25 51.49 +22 31 00.3 U I41
2020-07-03 11:27:41 C 03 25 51.55 +22 30 54.5 U I41
2020-07-07 11:12:02 C 03 27 28.98 +21 13 11.0 U I41
2020-07-07 11:19:12 C 03 27 29.13 +21 13 05.6 U I41
2020-07-07 11:26:21 C 03 27 29.30 +21 12 59.9 U I41
2020-07-07 11:33:32 C 03 27 29.46 +21 12 54.6 U I41
2020-07-09 14:14:38 C 03 28 47.67 +20 34 16.8 V T05
2020-07-09 14:28:49 C 03 28 48.05 +20 34 06.5 V T05
2020-07-09 14:36:14 C 03 28 48.25 +20 34 00.7 V T05
2020-07-09 14:45:31 C 03 28 48.48 +20 33 54.2 V T05
2020-07-23 14:06:40 C 03 41 20.26 +16 40 53.2 V T08
2020-07-23 14:14:05 C 03 41 20.56 +16 40 48.1 V T08
2020-07-23 14:38:33 C 03 41 21.55 +16 40 31.9 V T08
2020-07-23 14:50:07 C 03 41 22.01 +16 40 24.3 V T08
2020-07-29 02:22:21 C 03 46 56.59 +15 11 21.6 V C95
2020-07-29 02:36:51 C 03 46 57.15 +15 11 11.8 V C95
2020-07-31 14:06:33 C 03 49 27.23 +14 30 13.2 V T08
2020-07-31 14:11:12 C 03 49 27.41 +14 30 09.7 V T08
2020-07-31 14:38:54 C 03 49 28.50 +14 29 50.8 V T08
2020-07-31 14:54:33 C 03 49 29.14 +14 29 40.1 V T08
2020-08-07 01:14:32 C 03 55 43.43 +12 38 43.2 V A17
2020-08-07 01:26:28 C 03 55 43.88 +12 38 34.4 V A17
2020-08-07 01:38:23 C 03 55 44.34 +12 38 25.2 V A17
2020-08-08 13:41:38 C 03 57 07.29 +12 11 25.9 V T08
2020-08-08 13:50:23 C 03 57 07.58 +12 11 19.2 V T08
2020-08-08 13:55:41 C 03 57 07.78 +12 11 15.3 V T08
2020-08-08 14:10:58 C 03 57 08.33 +12 11 03.6 V T08
2020-08-10 03:16:37 C 03 58 31.00 +11 42 31.8 V 160
2020-08-10 03:19:38 C 03 58 31.12 +11 42 29.8 V 160
2020-08-10 03:22:41 C 03 58 31.20 +11 42 27.6 V 160