2015 YD18

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6408388129 ± 1.60e-06
Semi-major axis (a)1.5446312772 AU ± 7.27e-08
Inclination (i)40.79006249° ± 5.38e-05
Long. of Asc. Node (Ω)283.03374395° ± 7.73e-06
Arg. of Perihelion (ω)56.23532365° ± 1.31e-04
Mean Anomaly (M)94.90013859° ± 1.65e-04
Mean Motion (n)0.5134226680°/day ± 3.63e-08
Perihelion dist (q)0.55477160 AU ± 2.47e-06
Aphelion dist (Q)2.53449095 AU ± 2.48e-06
Orbital Period1.91971712 yr ± 1.36e-07
Physical Parameters
H (abs. magnitude)20.96
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.249″
Uncertainty0
Orbit TypeApollo
MOID0.240761 AU
Observations Used61
Oppositions1
Arc Total2015-2017
First Observation Used2015-12-31
Last Observation Used2017-12-21
Observations (61)
Date Type RA Dec Mag Band Observatory
2015-12-31 08:48:51 C 06 27 33.36 +40 26 16.8 q G96
2015-12-31 08:59:08 C 06 27 30.10 +40 25 29.8 q G96
2015-12-31 09:09:25 C 06 27 26.86 +40 24 42.4 q G96
2015-12-31 09:19:43 C 06 27 23.62 +40 23 55.0 q G96
2015-12-31 09:45:18 C 06 27 15.63 +40 21 57.2 q G96
2015-12-31 09:47:38 C 06 27 14.87 +40 21 46.7 q G96
2015-12-31 09:49:58 C 06 27 14.15 +40 21 35.5 q G96
2015-12-31 09:52:19 C 06 27 13.42 +40 21 24.7 q G96
2015-12-31 09:54:31 C 06 27 12.72 +40 21 15.3 o 291
2015-12-31 09:56:51 C 06 27 12.00 +40 21 04.4 o 291
2015-12-31 09:59:11 C 06 27 11.24 +40 20 53.2 o 291
2015-12-31 20:16:25 C 06 24 09.54 +39 34 07.3 q J95
2015-12-31 20:27:07 C 06 24 06.34 +39 33 20.1 q J95
2015-12-31 20:34:19 C 06 24 04.29 +39 32 47.4 q J95
2015-12-31 22:30:57 C 06 23 29.77 +39 24 06.7 q Z99
2015-12-31 22:37:20 C 06 23 27.87 +39 23 38.6 q Z99
2015-12-31 22:43:44 C 06 23 25.97 +39 23 09.6 q Z99
2016-01-01 06:35:40 C 06 21 12.20 +38 48 19.8 q G96
2016-01-01 06:40:57 C 06 21 10.69 +38 47 56.6 q G96
2016-01-01 06:46:15 C 06 21 09.16 +38 47 33.0 q G96
2016-01-01 06:51:33 C 06 21 07.60 +38 47 09.5 q G96
2016-01-01 19:11:00 C 06 17 48.76 +37 53 02.6 q 246
2016-01-01 19:11:47 C 06 17 48.61 +37 52 59.5 q 246
2016-01-01 22:24:17 C 06 16 57.29 +37 39 12.8 t 595
2016-01-01 22:33:23 C 06 16 54.86 +37 38 33.8 t 595
2016-01-02 04:20:02 C 06 15 27.39 +37 13 52.3 q I52
2016-01-02 04:28:43 C 06 15 25.10 +37 13 15.6 q I52
2016-01-02 04:33:58 C 06 15 23.76 +37 12 53.6 q I52
2016-01-03 03:13:58 C 06 09 57.87 +35 38 18.4 q I52
2016-01-03 03:20:20 C 06 09 56.39 +35 37 52.8 q I52
2016-01-03 03:26:43 C 06 09 54.89 +35 37 26.9 q I52
2016-01-03 03:33:06 C 06 09 53.38 +35 37 00.8 q I52
2016-01-03 06:20:51 C 06 09 14.26 +35 25 41.7 q I52
2016-01-03 06:26:09 C 06 09 13.06 +35 25 20.7 q I52
2016-01-03 07:05:21 C 06 09 03.93 +35 22 42.3 q I52
2016-01-03 07:06:11 C 06 09 03.75 +35 22 39.3 u 926
2016-01-03 07:13:03 C 06 09 02.14 +35 22 11.6 u 926
2016-01-03 07:18:22 C 06 09 00.92 +35 21 49.0 q I52
2016-01-03 10:07:45 C 06 08 22.10 +35 10 21.2 u 926
2016-01-03 10:21:29 C 06 08 18.91 +35 09 24.7 u 926
2016-01-05 06:14:52 C 05 59 29.59 +32 20 32.0 u H21
2016-01-05 06:22:35 C 05 59 28.14 +32 20 04.0 u H21
2016-01-05 06:28:44 C 05 59 26.97 +32 19 41.2 u H21
2016-01-13 05:29:43 C 05 35 22.35 +22 55 04.0 o 691
2016-01-13 05:33:38 C 05 35 21.95 +22 54 54.1 o 691
2016-01-13 05:37:33 C 05 35 21.70 +22 54 46.1 o 691
2016-01-14 09:40:56 C 05 33 09.913 +21 52 01.07 L F51
2016-01-14 10:01:00 C 05 33 08.335 +21 51 17.64 L F51
2016-01-14 10:21:02 C 05 33 06.767 +21 50 33.86 L F51
2016-02-06 02:27:00 C 05 21 08.65 +11 00 02.7 u H21