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
1997-07-03 22:13:16 C 18 06 51.89 -01 42 33.1 z 473
1997-07-03 22:45:44 C 18 06 45.98 -01 42 01.3 557
1997-07-03 22:48:26 C 18 06 45.51 -01 41 58.6 557
1997-07-04 08:21:19 C 18 05 09.65 -01 32 20.5 a 568
1997-07-04 09:16:30 C 18 04 59.92 -01 31 27.0 a 568
1997-07-04 10:16:15 C 18 04 49.35 -01 30 28.7 a 568
1997-07-04 14:51:36 C 18 04 03.30 -01 26 09.6 z 402
1997-07-04 14:54:35 C 18 04 02.78 -01 26 06.7 z 402
1997-07-04 14:57:35 C 18 04 02.24 -01 26 03.7 z 402
1997-07-04 21:54:10 C 18 02 53.94 -01 19 26.4 620
1997-07-04 21:58:39 C 18 02 53.16 -01 19 22.2 620
1997-07-04 22:24:29 C 18 02 48.68 -01 18 57.9 620
1997-07-05 14:33:59 C 18 00 09.06 -01 03 48.6 360
1997-07-05 14:38:30 C 18 00 08.29 -01 03 44.5 360
1997-07-05 14:42:59 C 18 00 07.53 -01 03 40.2 360
1997-07-06 13:45:39 C 17 56 25.84 -00 42 58.4 z 402
1997-07-06 13:48:38 C 17 56 25.33 -00 42 55.3 z 402
1997-07-06 13:51:38 C 17 56 24.84 -00 42 53.1 z 402
1997-07-06 20:41:00 C 17 55 20.83 -00 36 59.0 z 104
1997-07-06 20:46:59 C 17 55 19.91 -00 36 53.6 z 104
1997-07-06 20:52:29 C 17 55 19.03 -00 36 48.7 z 104
1997-07-06 21:00:21 C 17 55 17.58 -00 36 44.9 z 046
1997-07-06 21:02:58 C 17 55 17.07 -00 36 43.4 z 046
1997-07-06 21:04:51 C 17 55 16.83 -00 36 41.8 z 046
1997-07-06 21:06:40 C 17 55 16.51 -00 36 40.6 z 046
1997-07-06 21:09:23 C 17 55 16.11 -00 36 37.5 z 046
1997-07-07 10:11:53 C 17 53 15.12 -00 24 50.1 z 422
1997-07-07 10:14:12 C 17 53 14.77 -00 24 49.0 z 422
1997-07-07 10:16:29 C 17 53 14.36 -00 24 46.7 z 422
1997-07-08 21:30:48 C 17 47 54.39 +00 02 57.0 z 046
1997-07-08 21:36:53 C 17 47 53.41 +00 03 02.0 z 046
1997-07-08 21:40:50 C 17 47 52.81 +00 03 05.1 z 046
1997-07-08 22:37:25 C 17 47 44.26 +00 03 50.0 z 587
1997-07-08 22:45:26 C 17 47 43.06 +00 03 56.2 z 587
1997-07-08 22:52:15 C 17 47 42.00 +00 04 01.1 z 587
1997-07-08 23:07:12 C 17 47 39.62 +00 04 11.6 557
1997-07-08 23:09:42 C 17 47 39.25 +00 04 13.4 557
1997-07-08 23:12:14 C 17 47 38.83 +00 04 15.5 557
1997-07-09 21:21:08 C 17 44 27.29 +00 20 51.9 z 046
1997-07-09 21:23:09 C 17 44 26.97 +00 20 53.2 z 046
1997-07-09 21:27:33 C 17 44 26.34 +00 20 56.9 z 046
1997-07-09 22:03:24 C 17 44 21.04 +00 21 25.8 599
1997-07-09 22:08:19 C 17 44 20.17 +00 21 30.7 599
1997-07-09 22:14:14 C 17 44 19.33 +00 21 34.2 599
1997-07-09 22:19:10 C 17 44 18.58 +00 21 36.8 599
1997-07-09 23:25:49 C 17 44 08.77 +00 22 22.7 z 118
1997-07-09 23:31:10 C 17 44 07.96 +00 22 26.4 z 118
1997-07-11 06:51:25 C 17 39 47.83 +00 44 23.7 a 696
1997-07-11 06:52:30 C 17 39 47.66 +00 44 24.0 a 696
1997-07-11 06:53:36 C 17 39 47.51 +00 44 24.7 a 696