1997 YM9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1039929067 ± 1.15e-06
Semi-major axis (a)1.0959865826 AU ± 9.59e-07
Inclination (i)7.84267447° ± 8.52e-05
Long. of Asc. Node (Ω)94.69004932° ± 5.09e-05
Arg. of Perihelion (ω)51.75276119° ± 1.40e-03
Mean Anomaly (M)82.68984278° ± 2.51e-03
Mean Motion (n)0.8590222641°/day ± 1.13e-06
Perihelion dist (q)0.98201175 AU ± 1.53e-06
Aphelion dist (Q)1.20996141 AU ± 1.65e-06
Orbital Period1.14738153 yr ± 1.51e-06
NGA Modelr2
A2-4.68512387e-13 ± 1.29e-12 AU/d²
Physical Parameters
H (abs. magnitude)24.36
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.850″
Uncertainty1
Orbit TypeApollo
MOID0.030531 AU
Observations Used39
Oppositions3
Arc Total1997-2021
First Observation Used1997-12-28
Last Observation Used2021-09-09
Observations (39)
Date Type RA Dec Mag Band Observatory
1997-12-28 13:52:09 C 08 52 35.74 +28 35 22.6 c 566
1997-12-28 14:07:15 C 08 52 41.51 +28 37 40.0 c 566
1997-12-28 14:21:58 C 08 52 47.15 +28 39 54.9 c 566
1997-12-29 11:22:39 C 09 03 02.73 +31 58 00.1 c 566
1997-12-29 11:36:14 C 09 03 08.47 +32 00 12.1 c 566
1997-12-29 11:50:47 C 09 03 14.65 +32 02 33.6 c 566
1997-12-29 12:02:50 C 09 03 19.77 +32 04 28.5 c 566
1997-12-29 12:17:34 C 09 03 26.04 +32 06 50.9 c 566
1997-12-29 12:32:52 C 09 03 32.48 +32 09 18.2 c 566
1997-12-29 14:10:08 C 09 04 13.84 +32 24 41.3 c 566
1997-12-29 14:24:18 C 09 04 19.96 +32 26 54.4 c 566
1997-12-29 14:38:43 C 09 04 26.20 +32 29 08.6 c 566
1997-12-29 21:28:43 C 09 08 18.12 +33 31 57.1 046
1997-12-29 21:31:21 C 09 08 19.41 +33 32 22.3 046
1997-12-29 21:32:24 C 09 08 19.79 +33 32 32.7 046
1997-12-29 21:34:19 C 09 08 20.91 +33 32 51.6 046
1997-12-30 13:22:08 C 09 16 44.76 +36 07 45.3 c 566
1997-12-30 13:36:07 C 09 16 51.47 +36 09 58.8 c 566
1997-12-30 13:50:49 C 09 16 58.61 +36 12 19.2 c 566
1997-12-30 15:29:25 C 09 17 47.05 +36 27 43.5 c 566
1997-12-30 15:43:33 C 09 17 54.19 +36 29 54.5 c 566
1997-12-30 15:57:25 C 09 18 01.16 +36 32 02.5 c 566
1997-12-30 20:33:56 C 09 21 08.96 +37 13 37.5 046
1997-12-30 20:35:28 C 09 21 09.92 +37 13 51.9 046
1997-12-30 20:36:52 C 09 21 10.65 +37 14 05.2 046
1997-12-30 20:38:12 C 09 21 11.65 +37 14 20.8 046
1997-12-30 20:42:36 C 09 21 13.99 +37 15 03.9 046
1997-12-30 23:48:01 C 09 22 56.66 +37 45 47.3 557
1997-12-30 23:50:01 C 09 22 57.76 +37 46 07.1 557
1997-12-30 23:52:01 C 09 22 58.83 +37 46 27.0 557
1997-12-31 00:42:24 C 09 23 26.04 +37 54 39.4 557
1997-12-31 00:43:25 C 09 23 26.52 +37 54 49.6 557
1997-12-31 00:44:25 C 09 23 27.04 +37 54 59.3 557
1998-01-10 13:17:11 C 13 21 21.94 +62 27 42.2 658
1998-01-10 13:19:12 C 13 21 23.92 +62 27 43.7 658
1998-01-10 13:21:26 C 13 21 26.27 +62 27 45.6 658
2021-09-09 12:34:56 C 00 38 38.918 -40 41 36.29 V T12
2021-09-09 12:45:29 C 00 38 37.989 -40 41 47.32 V T12
2021-09-09 12:57:16 C 00 38 36.952 -40 41 59.63 V T12