2015 YS9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3671095894 ± 2.00e+00
Semi-major axis (a)1.4303385658 AU ± 3.00e+00
Inclination (i)1.48048135° ± 4.00e+00
Long. of Asc. Node (Ω)100.02349650° ± 5.00e+00
Arg. of Perihelion (ω)305.50913323° ± 6.00e+00
Mean Anomaly (M)306.20161518° ± 7.21e-02
Mean Motion (n)0.5761575500°/day ± 1.81e+00
Perihelion dist (q)0.90524710 AU ± 3.43e+00
Aphelion dist (Q)1.95544990 AU ± 5.00e+00
Orbital Period1.71065640 yr ± 5.38e+00
Physical Parameters
H (abs. magnitude)26.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.491″
Uncertainty2
Orbit TypeApollo
MOID0.003933 AU
Observations Used54
Oppositions1
Arc Total2015-2016
First Observation Used
Last Observation Used2016-01-03
Observations (54)
Date Type RA Dec Mag Band Observatory
2015-12-29 06:30:46 C 04 44 59.60 +18 24 30.6 q 703
2015-12-29 06:45:16 C 04 45 17.81 +18 26 08.1 q 703
2015-12-29 06:52:30 C 04 45 26.85 +18 26 56.9 q 703
2015-12-29 08:58:34 C 04 48 04.09 +18 40 35.1 o 291
2015-12-29 09:00:07 C 04 48 06.02 +18 40 44.8 o 291
2015-12-29 09:01:42 C 04 48 08.00 +18 40 54.5 o 291
2015-12-29 13:48:32 C 04 54 26.71 +19 11 17.5 q 900
2015-12-29 13:55:47 C 04 54 35.09 +19 12 00.3 q 900
2015-12-29 14:03:04 C 04 54 43.52 +19 12 44.5 q 900
2015-12-29 20:15:04 C 05 02 19.33 +19 47 08.4 q C77
2015-12-29 20:21:42 C 05 02 26.63 +19 47 46.1 q C77
2015-12-29 20:29:49 C 05 02 35.35 +19 48 30.8 q C77
2015-12-29 20:39:50 C 05 02 43.72 +19 48 51.6 S C43
2015-12-29 20:44:58 C 05 02 49.30 +19 49 19.7 S C43
2015-12-29 20:51:03 C 05 02 55.92 +19 49 52.4 S C43
2015-12-29 23:42:40 C 05 06 02.28 +20 05 28.2 q 958
2015-12-29 23:50:38 C 05 06 07.42 +20 05 47.9 o K51
2015-12-29 23:52:08 C 05 06 12.09 +20 06 15.5 q 958
2015-12-29 23:55:08 C 05 06 12.24 +20 06 10.1 o K51
2015-12-29 23:59:40 C 05 06 16.86 +20 06 32.8 o K51
2015-12-30 00:01:34 C 05 06 21.95 +20 07 02.0 q 958
2015-12-30 05:14:25 C 05 12 06.78 +20 33 34.9 o 711
2015-12-30 05:16:53 C 05 12 09.14 +20 33 46.7 o 711
2015-12-30 05:19:28 C 05 12 11.66 +20 33 58.8 o 711
2015-12-30 05:22:00 C 05 12 14.04 +20 34 10.3 o 711
2015-12-30 14:59:25 C 05 21 40.99 +21 14 48.7 q 900
2015-12-30 15:14:49 C 05 21 54.27 +21 15 46.3 q 900
2015-12-30 15:22:05 C 05 22 00.61 +21 16 14.1 q 900
2015-12-30 19:22:53 C 05 25 56.37 +21 30 26.9 t L04
2015-12-30 19:33:18 C 05 26 05.20 +21 31 06.8 t L04
2016-01-01 06:32:19 C 05 52 20.30 +23 09 56.9 u H21
2016-01-01 06:35:25 C 05 52 22.10 +23 10 03.3 u H21
2016-01-01 06:38:31 C 05 52 23.88 +23 10 09.2 u H21
2016-01-01 06:43:19 C 05 52 26.68 +23 10 18.7 u H21
2016-01-01 07:03:45 C 05 52 43.45 +23 11 41.9 u 926
2016-01-01 07:08:17 C 05 52 46.03 +23 11 50.8 u 926
2016-01-01 07:12:48 C 05 52 48.60 +23 12 00.4 u 926
2016-01-01 19:27:28 C 06 00 14.87 +23 34 15.9 q 246
2016-01-01 19:30:41 C 06 00 16.61 +23 34 22.6 q 246
2016-01-01 19:32:59 C 06 00 17.67 +23 34 27.7 q 246
2016-01-01 19:34:16 C 06 00 18.43 +23 34 29.4 q 246
2016-01-01 19:35:40 C 06 00 19.14 +23 34 33.2 q 246
2016-01-02 04:32:52 C 06 05 08.06 +23 50 26.1 q I52
2016-01-02 04:42:33 C 06 05 12.58 +23 50 43.2 q I52
2016-01-02 04:49:16 C 06 05 15.69 +23 50 54.7 q I52
2016-01-03 07:47:45 C 06 17 29.00 +24 26 11.0 t 705
2016-01-03 07:49:37 C 06 17 29.72 +24 26 13.1 t 705
2016-01-03 07:51:30 C 06 17 30.35 +24 26 14.8 t 705
2016-01-03 08:07:17 C 06 17 37.03 +24 26 33.8 q I52
2016-01-03 08:11:53 C 06 17 38.64 +24 26 38.0 q I52