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
2005-07-12 03:46:44 C 12 24 11.128 -06 49 34.62 o 695
2005-07-12 03:51:29 C 12 24 11.932 -06 49 36.63 o 695
2005-07-12 03:56:42 C 12 24 12.777 -06 49 38.93 o 695
2006-05-04 09:23:38 C 05 59 48.62 -42 22 59.4 r E12
2006-05-04 09:32:56 C 05 59 53.23 -42 23 19.3 r E12
2006-05-04 09:42:15 C 05 59 57.84 -42 23 39.1 r E12
2006-05-04 09:51:33 C 06 00 02.55 -42 23 58.4 r E12
2006-05-19 23:24:30 C 10 09 32.45 -42 07 37.3 o 808
2006-05-19 23:34:29 C 10 09 38.54 -42 07 08.3 o 808
2006-05-19 23:40:30 C 10 09 42.05 -42 06 52.5 o 808
2006-05-21 23:21:29 C 10 37 11.49 -39 47 49.8 o 808
2006-05-21 23:26:59 C 10 37 14.14 -39 47 34.7 o 808
2006-05-24 03:47:39 C 11 03 37.50 -37 02 00.4 c 844
2006-05-24 03:54:52 C 11 03 40.75 -37 01 36.3 c 844
2006-05-24 04:05:43 C 11 03 45.82 -37 01 00.5 c 844
2006-05-24 04:09:19 C 11 03 47.51 -37 00 48.5 c 844
2006-05-24 04:16:34 C 11 03 50.94 -37 00 24.0 c 844
2006-05-24 04:20:14 C 11 03 52.53 -37 00 12.8 c 844
2006-05-24 04:23:51 C 11 03 54.30 -37 00 00.3 c 844
2006-05-27 10:50:26 C 11 36 53.78 -32 49 40.7 r E12
2006-05-27 11:04:10 C 11 36 58.71 -32 48 57.0 r E12
2006-05-27 11:17:52 C 11 37 03.68 -32 48 13.5 r E12
2006-05-27 11:31:37 C 11 37 08.61 -32 47 29.7 r E12
2006-05-30 04:28:00 C 11 59 23.04 -29 31 47.3 r 683
2006-05-30 04:47:41 C 11 59 29.01 -29 30 48.7 r 683
2006-05-30 04:53:00 C 11 59 30.59 -29 30 33.4 r 683
2006-05-30 05:03:09 C 11 59 33.61 -29 30 02.9 r 683
2006-05-31 04:12:00 C 12 06 34.97 -28 24 02.3 r 683
2006-05-31 04:33:53 C 12 06 41.11 -28 23 00.2 r 683
2006-05-31 04:41:58 C 12 06 43.36 -28 22 37.1 r 683
2006-05-31 04:45:48 C 12 06 44.44 -28 22 26.3 r 683
2006-05-31 04:51:04 C 12 06 45.92 -28 22 10.9 r 683
2006-05-31 11:46:37 C 12 08 46.46 -28 02 07.6 r E12
2006-05-31 12:03:52 C 12 08 51.25 -28 01 19.0 r E12
2006-05-31 12:21:29 C 12 08 56.14 -28 00 29.0 r E12
2006-05-31 12:38:51 C 12 09 00.93 -27 59 40.1 r E12
2006-06-20 04:18:14 C 13 34 47.96 -13 58 02.7 r 683
2006-06-20 04:25:37 C 13 34 48.76 -13 57 55.2 r 683
2006-06-20 04:36:21 C 13 34 50.01 -13 57 44.3 r 683
2006-06-20 04:43:37 C 13 34 50.82 -13 57 36.8 r 683
2006-06-20 04:50:50 C 13 34 51.67 -13 57 29.3 r 683
2006-06-21 03:48:36 C 13 37 37.50 -13 34 59.0 r 683
2006-06-21 03:56:18 C 13 37 38.49 -13 34 49.4 r 683
2006-06-21 04:03:27 C 13 37 39.21 -13 34 42.6 r 683
2006-06-27 11:05:26 C 13 54 21.49 -11 33 22.6 r E12
2006-06-27 11:29:53 C 13 54 23.90 -11 33 06.4 r E12
2006-06-27 11:42:07 C 13 54 25.09 -11 32 57.6 r E12
2007-05-27 09:45:42 C 20 51 51.12 -16 22 13.8 r 703
2007-05-27 09:57:37 C 20 51 50.65 -16 22 02.0 r 703
2007-05-27 10:09:40 C 20 51 50.11 -16 21 49.8 r 703