136818 (1997 MW1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3463386925 ± 3.01e-08
Semi-major axis (a)0.9375005404 AU ± 2.73e-09
Inclination (i)12.77777727° ± 3.24e-06
Long. of Asc. Node (Ω)259.92112272° ± 7.36e-06
Arg. of Perihelion (ω)203.83772352° ± 1.04e-05
Mean Anomaly (M)269.32122791° ± 1.72e-05
Mean Motion (n)1.0858128727°/day ± 4.75e-09
Perihelion dist (q)0.61280783 AU ± 2.83e-08
Aphelion dist (Q)1.26219325 AU ± 2.85e-08
Orbital Period0.90773126 yr ± 3.97e-09
NGA Modelr2
A24.10622782e-14 ± 3.13e-15 AU/d²
Physical Parameters
H (abs. magnitude)18.98
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.474″
Uncertainty0
Orbit TypeAten
MOID0.112651 AU
Observations Used643
Oppositions2
Arc Total1997-2019
First Observation Used1997-06-29
Last Observation Used2019-05-07
Observations (656)
Date Type RA Dec Mag Band Observatory
2017-06-08 08:36:01 C 20 57 24.65 -07 55 27.4 u H21
2017-06-08 08:38:58 C 20 57 24.48 -07 55 23.8 u H21
2017-06-08 08:41:54 C 20 57 24.31 -07 55 20.3 u H21
2017-06-08 08:45:08 C 20 57 24.09 -07 55 16.3 u H21
2017-06-10 07:29:32 C 20 54 44.72 -06 57 35.6 u H21
2017-06-10 07:36:43 C 20 54 44.26 -06 57 27.0 u H21
2017-06-10 07:44:16 C 20 54 43.77 -06 57 17.4 u H21
2017-06-10 07:51:50 C 20 54 43.30 -06 57 08.0 u H21
2017-06-10 07:58:38 C 20 54 42.88 -06 56 59.4 u H21
2017-06-12 08:45:05 C 20 51 31.67 -05 55 23.2 u H21
2017-06-12 08:48:13 C 20 51 31.45 -05 55 18.6 u H21
2017-06-12 08:51:10 C 20 51 31.25 -05 55 14.8 u H21
2017-06-12 08:54:06 C 20 51 31.01 -05 55 11.2 u H21
2017-06-12 08:57:32 C 20 51 30.77 -05 55 06.9 u H21
2017-06-18 09:08:21 C 20 39 33.10 -02 45 13.2 q 703
2017-06-18 09:16:07 C 20 39 32.30 -02 45 02.8 q 703
2017-06-18 09:23:50 C 20 39 31.52 -02 44 52.6 q 703
2017-06-18 09:31:32 C 20 39 30.68 -02 44 42.5 q 703
2017-06-19 00:02:50 C 20 38 05.33 -02 25 04.6 q 160
2017-06-19 00:05:50 C 20 38 05.02 -02 25 00.3 q 160
2017-06-19 00:08:51 C 20 38 04.68 -02 24 56.4 q 160
2017-06-19 08:08:41 C 20 37 16.53 -02 14 00.1 q 703
2017-06-19 08:16:23 C 20 37 15.68 -02 13 49.4 q 703
2017-06-19 08:24:07 C 20 37 14.86 -02 13 39.0 q 703
2017-06-20 00:21:53 C 20 35 35.96 -01 51 56.4 q 160
2017-06-20 00:25:02 C 20 35 35.59 -01 51 52.0 q 160
2017-06-20 00:27:50 C 20 35 35.28 -01 51 48.3 q 160
2017-06-21 01:03:20 C 20 32 56.85 -01 18 05.0 q 160
2017-06-21 01:06:12 C 20 32 56.55 -01 18 00.9 q 160
2017-06-21 01:08:47 C 20 32 56.23 -01 17 57.7 q 160
2017-06-22 09:49:59 C 20 29 14.37 -00 32 48.3 q G96
2017-06-22 09:56:04 C 20 29 13.62 -00 32 40.3 q G96
2017-06-22 10:02:07 C 20 29 12.89 -00 32 31.7 q G96
2017-06-23 12:59:08 C 20 26 00.41 +00 04 53.7 L T08
2017-06-23 13:12:15 C 20 25 58.64 +00 05 10.9 L T08
2017-06-23 13:26:11 C 20 25 56.90 +00 05 30.9 L T08
2017-06-23 13:39:21 C 20 25 55.16 +00 05 49.1 L T08
2017-07-03 22:45:25 C 19 49 55.54 +05 43 48.9 q 160
2017-07-03 22:47:24 C 19 49 55.20 +05 43 51.7 q 160
2017-07-03 22:49:21 C 19 49 54.86 +05 43 54.4 q 160
2017-07-06 22:13:01 C 19 37 53.90 +07 12 31.7 q 160
2017-07-06 22:14:57 C 19 37 53.53 +07 12 34.4 q 160
2017-07-06 22:16:55 C 19 37 53.18 +07 12 36.6 q 160
2017-07-12 04:15:19 C 19 15 44.49 +09 31 01.4 u H21
2017-07-12 04:17:58 C 19 15 44.00 +09 31 04.1 u H21
2017-07-12 04:20:29 C 19 15 43.53 +09 31 06.6 u H21
2017-07-12 04:23:09 C 19 15 43.05 +09 31 09.2 u H21
2017-07-12 04:25:45 C 19 15 42.56 +09 31 11.8 u H21
2017-07-12 04:28:16 C 19 15 42.10 +09 31 14.3 u H21
2017-07-12 04:30:47 C 19 15 41.63 +09 31 16.9 u H21