2017 YW4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5551849237 ± 1.12e-04
Semi-major axis (a)2.3124298720 AU ± 5.37e-04
Inclination (i)9.01858119° ± 2.14e-03
Long. of Asc. Node (Ω)276.63226034° ± 3.32e-03
Arg. of Perihelion (ω)192.82176506° ± 3.63e-03
Mean Anomaly (M)86.30422466° ± 3.67e-01
Mean Motion (n)0.2802911721°/day ± 9.76e-05
Perihelion dist (q)1.02860367 AU ± 3.52e-04
Aphelion dist (Q)3.59625607 AU ± 8.74e-04
Orbital Period3.51643712 yr ± 1.22e-03
Physical Parameters
H (abs. magnitude)24.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.285″
Uncertainty3
Orbit TypeAmor
MOID0.050177 AU
Observations Used40
Oppositions1
Arc Total2017-2018
First Observation Used2017-12-24
Last Observation Used2018-02-21
Observations (40)
Date Type RA Dec Mag Band Observatory
2017-12-24 11:31:44 C 10 01 02.94 +10 55 38.5 U G96
2017-12-24 11:39:09 C 10 01 04.77 +10 54 54.3 U G96
2017-12-24 11:46:33 C 10 01 06.57 +10 54 09.5 U G96
2017-12-24 11:53:58 C 10 01 08.34 +10 53 24.7 U G96
2017-12-24 12:28:01 C 10 01 16.64 +10 49 58.1 U V06
2017-12-24 12:30:04 C 10 01 17.20 +10 49 45.6 U V06
2017-12-24 12:32:08 C 10 01 17.69 +10 49 32.8 U V06
2017-12-24 12:34:11 C 10 01 18.15 +10 49 20.0 U V06
2017-12-25 09:42:10 C 10 06 49.14 +08 42 23.4 U I52
2017-12-25 09:44:36 C 10 06 49.70 +08 42 09.5 U I52
2017-12-25 09:47:00 C 10 06 50.28 +08 41 54.6 U I52
2017-12-25 09:49:23 C 10 06 50.85 +08 41 40.7 U I52
2017-12-25 13:02:51 C 10 07 35.93 +08 22 28.9 o 926
2017-12-25 13:08:30 C 10 07 37.27 +08 21 55.3 o 926
2017-12-25 13:14:11 C 10 07 38.59 +08 21 21.0 o 926
2017-12-26 09:57:36 C 10 12 49.17 +06 19 12.4 o 711
2017-12-26 10:02:01 C 10 12 50.09 +06 18 46.9 o 711
2017-12-26 10:06:21 C 10 12 51.12 +06 18 21.6 o 711
2017-12-26 11:24:10 C 10 13 08.90 +06 10 44.8 U I52
2017-12-26 11:28:58 C 10 13 09.99 +06 10 17.5 U I52
2017-12-26 11:33:45 C 10 13 11.02 +06 09 49.3 U I52
2017-12-26 11:50:51 C 10 13 14.86 +06 08 09.9 U I52
2018-01-05 05:30:00 C 10 58 38.27 -12 54 53.9 U 807
2018-01-05 05:40:18 C 10 58 39.70 -12 55 34.5 U 807
2018-01-05 05:50:10 C 10 58 41.08 -12 56 12.9 U 807
2018-01-09 06:26:09 C 11 11 53.69 -18 32 09.8 u 807
2018-01-09 06:42:47 C 11 11 55.52 -18 33 01.6 u 807
2018-01-09 06:58:57 C 11 11 57.24 -18 33 51.8 u 807
2018-01-18 04:06:48 C 11 32 32.62 -27 12 44.9 U 807
2018-01-18 04:17:23 C 11 32 33.35 -27 13 05.6 U 807
2018-01-18 04:28:14 C 11 32 34.07 -27 13 26.5 U 807
2018-01-18 05:41:28 C 11 32 38.70 -27 15 47.5 u 807
2018-01-18 06:01:23 C 11 32 39.94 -27 16 26.2 u 807
2018-01-18 06:20:38 C 11 32 41.09 -27 17 02.7 u 807
2018-01-28 07:18:16 C 11 44 56.54 -32 53 29.1 U 807
2018-01-28 07:40:44 C 11 44 56.96 -32 53 51.7 U 807
2018-01-28 08:02:36 C 11 44 57.38 -32 54 13.7 U 807
2018-02-21 08:11:43 C 11 43 17.09 -36 16 28.0 U 807
2018-02-21 08:33:31 C 11 43 16.31 -36 16 22.3 U 807
2018-02-21 08:55:17 C 11 43 15.51 -36 16 17.6 U 807