2015 YY9

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5644581352 ± 2.00e+00
Semi-major axis (a)1.8650948637 AU ± 3.00e+00
Inclination (i)8.29951147° ± 4.00e+00
Long. of Asc. Node (Ω)77.92151353° ± 5.00e+00
Arg. of Perihelion (ω)300.41024168° ± 6.00e+00
Mean Anomaly (M)339.82728298° ± 1.20e-01
Mean Motion (n)0.3869505800°/day ± 9.34e-01
Perihelion dist (q)0.81233480 AU ± 3.95e+00
Aphelion dist (Q)2.91783880 AU ± 6.00e+00
Orbital Period2.54711510 yr ± 6.15e+00
Physical Parameters
H (abs. magnitude)22.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.295″
Uncertainty3
Orbit TypeApollo
MOID0.000973 AU
Observations Used110
Oppositions1
Arc Total2015-2016
First Observation Used
Last Observation Used2016-01-14
Observations (110)
Date Type RA Dec Mag Band Observatory
2015-12-30 11:46:31 C 03 39 40.37 +35 18 19.5 o 300
2015-12-30 11:49:50 C 03 39 41.44 +35 18 23.8 o 300
2015-12-30 17:27:10 C 03 41 40.77 +35 26 12.2 t 595
2015-12-30 17:30:00 C 03 41 41.37 +35 26 16.7 o 461
2015-12-30 17:35:01 C 03 41 43.06 +35 26 23.8 o 461
2015-12-30 17:40:05 C 03 41 44.75 +35 26 31.5 o 461
2015-12-30 17:45:52 C 03 41 47.04 +35 26 39.7 t 595
2015-12-30 18:08:53 C 03 41 55.00 +35 27 12.4 19.0 t B04
2015-12-30 18:19:16 C 03 41 58.51 +35 27 27.5 19.5 t B04
2015-12-30 18:24:59 C 03 41 59.99 +35 27 32.5 q K61
2015-12-30 18:25:39 C 03 42 00.25 +35 27 33.0 q K61
2015-12-30 18:27:00 C 03 42 01.05 +35 27 38.5 19.0 t B04
2015-12-30 22:05:05 C 03 43 12.77 +35 32 41.7 19.2 t 104
2015-12-30 22:12:06 C 03 43 15.03 +35 32 51.7 18.8 t 104
2015-12-30 22:12:39 C 03 43 15.26 +35 32 51.4 19.5 t 104
2015-12-31 03:49:52 C 03 45 10.52 +35 40 36.9 o 711
2015-12-31 03:53:39 C 03 45 11.72 +35 40 41.7 o 711
2015-12-31 03:57:23 C 03 45 12.89 +35 40 46.7 o 711
2015-12-31 04:01:52 C 03 45 14.33 +35 40 52.6 o 711
2015-12-31 04:27:54 C 03 45 23.04 +35 41 25.5 o 926
2015-12-31 04:36:41 C 03 45 25.86 +35 41 37.3 o 926
2015-12-31 04:45:35 C 03 45 28.64 +35 41 48.8 o 926
2015-12-31 10:32:13 C 03 47 24.71 +35 49 04.2 o 300
2015-12-31 10:35:31 C 03 47 25.65 +35 49 08.4 o 300
2015-12-31 13:06:05 C 03 48 12.38 +35 52 14.3 o 300
2015-12-31 13:09:25 C 03 48 13.41 +35 52 18.4 o 300
2015-12-31 13:19:24 C 03 48 16.49 +35 52 30.3 o 300
2016-01-01 01:38:58 C 03 52 14.34 +36 06 48.4 o 291
2016-01-01 01:40:10 C 03 52 14.70 +36 06 50.0 o 291
2016-01-01 01:41:24 C 03 52 15.05 +36 06 51.4 o 291
2016-01-02 02:46:53 C 03 59 43.27 +36 32 28.0 q I52
2016-01-02 02:49:37 C 03 59 44.04 +36 32 30.5 q I52
2016-01-02 02:52:28 C 03 59 44.81 +36 32 33.1 q I52
2016-01-02 02:55:20 C 03 59 45.60 +36 32 36.2 q I52
2016-01-03 02:08:18 C 04 06 11.02 +36 52 21.3 q I52
2016-01-03 02:11:22 C 04 06 11.81 +36 52 23.7 q I52
2016-01-03 02:17:30 C 04 06 13.37 +36 52 28.7 q I52
2016-01-03 03:29:55 C 04 06 30.54 +36 53 23.8 u H21
2016-01-03 03:36:26 C 04 06 32.19 +36 53 28.7 u H21
2016-01-03 03:42:41 C 04 06 33.76 +36 53 33.4 u H21
2016-01-03 05:19:33 C 04 06 59.27 +36 54 53.6 q I52
2016-01-03 05:24:19 C 04 07 00.50 +36 54 57.7 q I52
2016-01-03 05:27:30 C 04 07 01.25 +36 54 59.5 q I52
2016-01-03 05:34:38 C 04 07 03.05 +36 55 04.7 q I52
2016-01-05 03:56:45 C 04 18 29.14 +37 24 54.7 u H21
2016-01-05 04:04:32 C 04 18 30.85 +37 24 58.5 u H21
2016-01-05 04:13:09 C 04 18 32.75 +37 25 03.2 u H21
2016-01-06 03:52:02 C 04 23 49.24 +37 36 41.1 u H21
2016-01-06 04:00:27 C 04 23 50.99 +37 36 44.5 u H21
2016-01-06 04:17:40 C 04 23 54.51 +37 36 51.8 u H21