136839 (1997 WT22)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3057994444 ± 2.30e-08
Semi-major axis (a)1.4853820888 AU ± 9.01e-10
Inclination (i)8.15876885° ± 3.05e-06
Long. of Asc. Node (Ω)71.90256758° ± 1.39e-05
Arg. of Perihelion (ω)74.82997435° ± 1.49e-05
Mean Anomaly (M)111.77247506° ± 5.89e-06
Mean Motion (n)0.5444462389°/day ± 4.95e-10
Perihelion dist (q)1.03115307 AU ± 3.42e-08
Aphelion dist (Q)1.93961111 AU ± 3.42e-08
Orbital Period1.81032802 yr ± 1.65e-09
Physical Parameters
H (abs. magnitude)18.85
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.386″
Uncertainty0
Orbit TypeAmor
MOID0.130344 AU
Observations Used496
Oppositions17
Arc Total1988-2025
First Observation Used1988-12-13
Last Observation Used2025-01-29
Observations (573)
Date Type RA Dec Mag Band Observatory
1998-04-22 08:36:34 C 10 20 07.29 +38 05 39.0 c 566
1998-04-22 08:50:26 C 10 20 10.00 +38 05 06.5 c 566
1998-04-22 09:04:58 C 10 20 12.84 +38 04 31.6 c 566
1998-04-29 22:08:23 C 10 53 42.76 +30 57 51.2 557
1998-04-30 11:32:02 C 10 55 57.33 +30 26 33.1 z 402
1998-04-30 11:36:02 C 10 55 57.81 +30 26 24.9 z 402
1998-04-30 11:40:01 C 10 55 58.30 +30 26 16.0 z 402
1998-05-18 22:04:00 C 11 56 13.75 +14 33 27.7 b 611
2002-07-29 09:04:57 C 21 56 34.94 -28 18 56.6 o 644
2004-09-02 10:42:35 C 23 59 05.04 -18 42 11.4 o 568
2004-09-02 10:47:29 C 23 59 04.75 -18 42 13.8 o 568
2004-09-18 09:37:10 C 23 34 01.25 -21 27 40.0 o 568
2004-09-18 09:42:16 C 23 34 00.87 -21 27 41.7 o 568
2006-09-29 10:47:11 C 02 51 16.57 +01 12 45.3 20.7 g 705
2006-09-29 10:48:24 C 02 51 16.55 +01 12 45.1 g 705
2006-10-01 10:43:34 C 02 50 15.99 +01 01 02.2 20.6 g 705
2006-10-01 10:44:47 C 02 50 15.96 +01 01 01.9 g 705
2006-10-17 08:11:45 C 02 34 18.30 -00 39 06.9 r 703
2006-10-17 08:18:09 C 02 34 17.79 -00 39 06.9 r 703
2006-10-17 08:24:33 C 02 34 17.40 -00 39 10.6 r 703
2006-10-17 08:30:59 C 02 34 16.96 -00 39 11.5 r 703
2006-10-17 22:39:08 C 02 33 25.59 -00 42 51.6 r 113
2006-10-17 22:43:21 C 02 33 25.30 -00 42 52.5 r 113
2006-10-17 22:47:33 C 02 33 25.03 -00 42 53.3 r 113
2006-10-17 22:51:45 C 02 33 24.77 -00 42 54.4 r 113
2006-10-28 06:06:40 C 02 15 50.54 -01 36 06.7 r 703
2006-10-28 06:15:15 C 02 15 49.89 -01 36 08.2 r 703
2006-10-28 06:24:02 C 02 15 49.14 -01 36 08.4 r 703
2006-10-28 06:32:35 C 02 15 48.42 -01 36 10.1 r 703
2006-11-10 04:38:43 C 01 50 22.69 -01 56 10.2 18.6 c 704
2006-11-10 04:55:58 C 01 50 21.17 -01 56 09.3 18.7 c 704
2006-11-10 05:13:15 C 01 50 19.83 -01 56 09.3 19.0 c 704
2006-11-10 05:30:33 C 01 50 18.21 -01 56 07.8 19.1 c 704
2006-11-10 05:47:49 C 01 50 16.76 -01 56 06.8 19.0 c 704
2006-11-16 05:40:05 C 01 39 03.92 -01 40 39.9 r 703
2006-11-16 05:57:16 C 01 39 02.62 -01 40 36.8 r 703
2006-11-16 06:14:29 C 01 39 01.26 -01 40 33.8 r 703
2006-11-16 06:31:42 C 01 38 59.89 -01 40 31.0 r 703
2006-12-16 03:49:05 C 01 10 53.04 +03 29 50.9 19.3 c 704
2006-12-16 04:07:42 C 01 10 52.96 +03 30 02.3 19.2 c 704
2006-12-16 04:26:28 C 01 10 52.90 +03 30 14.6 19.5 c 704
2006-12-25 02:03:41 C 01 13 05.41 +05 59 07.7 r 703
2006-12-25 02:16:58 C 01 13 05.66 +05 59 19.0 r 703
2006-12-25 02:30:08 C 01 13 05.98 +05 59 29.5 r 703
2006-12-25 02:43:20 C 01 13 06.24 +05 59 38.6 r 703
2008-10-24 11:23:51 C 08 30 55.65 +19 00 44.7 r G96
2008-10-24 11:30:09 C 08 30 56.73 +19 00 43.4 r G96
2008-10-24 11:42:56 C 08 30 58.89 +19 00 41.2 r G96
2015-09-08 13:03:29 C 01 58 43.973 -03 52 55.07 L F51
2015-09-08 13:23:28 C 01 58 43.695 -03 53 01.43 L F51