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
2018-02-19 01:23:51 S 16 10 20.27 +06 35 39.9 L C51
2018-02-19 04:32:10 S 16 10 42.01 +06 33 42.7 L C51
2018-02-19 04:32:20 S 16 10 42.00 +06 33 42.6 L C51
2018-02-19 07:40:51 S 16 11 03.64 +06 31 45.1 L C51
2018-02-23 12:25:06 C 16 22 07.51 +05 30 20.3 U G96
2018-02-23 12:32:29 C 16 22 08.22 +05 30 16.1 U G96
2018-02-23 12:39:51 C 16 22 08.94 +05 30 12.0 U G96
2018-02-23 12:47:15 C 16 22 09.67 +05 30 07.5 U G96
2018-04-07 01:04:54 C 17 20 24.91 -03 39 36.2 q 160
2018-04-07 01:08:34 C 17 20 24.90 -03 39 37.2 q 160
2018-04-07 01:12:15 C 17 20 24.90 -03 39 40.9 q 160
2018-04-11 02:10:52 C 17 20 06.19 -04 35 57.8 o Z22
2018-04-11 02:35:19 C 17 20 05.82 -04 36 13.2 o Z22
2018-04-21 01:14:07 C 17 14 00.15 -07 07 20.5 U K83
2018-04-21 01:19:18 C 17 13 59.92 -07 07 24.1 U K83
2018-04-21 01:23:49 C 17 13 59.72 -07 07 27.5 U K83
2018-05-10 03:56:44 C 16 43 15.29 -12 39 29.2 c J04
2018-05-10 04:13:34 C 16 43 13.74 -12 39 41.4 c J04
2018-05-10 04:30:24 C 16 43 12.13 -12 39 53.6 c J04
2018-05-15 05:11:56 C 16 32 30.34 -14 07 52.3 q H15
2018-05-15 05:22:31 C 16 32 29.32 -14 08 00.1 q H15
2018-05-15 05:31:26 C 16 32 28.50 -14 08 07.2 q H15
2018-05-15 08:03:33 C 16 32 14.00 -14 09 55.9 U G96
2018-05-15 08:10:56 C 16 32 13.30 -14 10 01.3 U G96
2018-05-15 08:18:21 C 16 32 12.58 -14 10 06.4 U G96
2018-05-15 08:25:44 C 16 32 11.85 -14 10 11.4 U G96
2018-05-17 17:38:59 C 16 27 01.49 -14 50 29.9 q D29
2018-05-17 18:03:10 C 16 26 59.16 -14 50 46.7 q D29
2018-05-17 18:27:20 C 16 26 56.83 -14 51 03.1 q D29
2018-05-20 00:35:38 C 16 22 05.87 -15 28 09.7 U K83
2018-05-20 00:38:36 C 16 22 05.50 -15 28 11.1 U K83
2018-05-20 00:42:52 C 16 22 05.11 -15 28 14.3 U K83
2018-05-26 03:36:27 C 16 09 29.07 -17 02 06.7 q X74
2018-05-26 03:50:30 C 16 09 27.83 -17 02 15.2 q X74
2018-05-26 04:04:22 C 16 09 26.63 -17 02 22.5 q X74
2018-06-02 07:44:52 C 15 56 36.31 -18 39 35.4 U G96
2018-06-02 07:52:37 C 15 56 35.73 -18 39 39.2 U G96
2018-06-02 08:00:21 C 15 56 35.17 -18 39 43.2 U G96
2018-06-02 08:08:07 C 15 56 34.61 -18 39 47.3 U G96
2018-06-04 09:50:23 C 15 53 22.04 -19 05 05.8 U T05
2018-06-04 10:09:29 C 15 53 20.77 -19 05 15.0 U T05
2018-06-04 10:19:22 C 15 53 20.03 -19 05 20.3 U T05
2018-06-04 10:31:05 C 15 53 19.32 -19 05 26.0 U T05
2018-06-06 02:09:10 C 15 50 56.01 -19 24 49.3 o Z22
2018-06-06 02:10:56 C 15 50 55.96 -19 24 49.4 o Z22
2018-06-06 02:14:20 C 15 50 55.76 -19 24 51.1 o Z22
2018-06-06 02:16:03 C 15 50 55.67 -19 24 52.7 o Z22
2018-06-06 02:57:39 C 15 50 53.05 -19 25 10.4 o Z22
2018-06-06 09:15:45 C 15 50 32.10 -19 28 12.0 U T08
2018-06-06 09:35:02 C 15 50 30.90 -19 28 21.2 U T08