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
1988-12-13 08:55:00 08 14 03.77 +32 19 14.6 c 261
1988-12-13 10:14:59 08 14 16.59 +32 21 31.7 c 261
1997-11-29 03:23:02 C 03 18 31.22 +12 53 27.5 17.9 a 704
1997-11-29 04:11:45 C 03 18 26.29 +12 53 53.9 19.1 a 704
1997-11-29 04:38:49 C 03 18 23.47 +12 54 08.7 a 704
1997-11-29 05:05:45 C 03 18 20.67 +12 54 23.1 17.9 a 704
1997-11-29 05:36:35 C 03 18 17.50 +12 54 40.1 a 704
1997-11-30 13:15:15 C 03 15 12.51 +13 11 51.6 360
1997-11-30 13:21:30 C 03 15 11.84 +13 11 54.0 360
1997-11-30 13:30:00 C 03 15 10.96 +13 11 58.9 360
1997-12-02 04:14:08 C 03 11 24.49 +13 33 51.8 658
1997-12-02 04:27:20 C 03 11 23.13 +13 33 59.7 658
1997-12-02 04:33:55 C 03 11 22.48 +13 34 03.7 658
1997-12-03 06:07:50 C 03 08 52.30 +13 49 10.9 658
1997-12-03 06:14:36 C 03 08 51.62 +13 49 15.1 658
1997-12-03 06:30:16 C 03 08 50.01 +13 49 24.7 658
1997-12-04 05:09:41 C 03 06 37.91 +14 03 17.4 17.9 a 704
1997-12-04 05:48:51 C 03 06 33.84 +14 03 42.2 18.4 a 704
1997-12-04 06:12:39 C 03 06 31.43 +14 03 55.7 18.3 a 704
1997-12-04 06:36:33 C 03 06 28.90 +14 04 10.3 18.0 a 704
1997-12-04 07:01:02 C 03 06 26.36 +14 04 25.1 18.1 a 704
1997-12-04 14:20:00 C 03 05 44.05 +14 08 57.4 z 402
1997-12-04 14:23:02 C 03 05 43.74 +14 08 59.2 z 402
1997-12-04 14:26:01 C 03 05 43.44 +14 09 00.9 z 402
1997-12-05 05:58:26 C 03 04 14.16 +14 18 40.2 658
1997-12-05 06:04:07 C 03 04 13.58 +14 18 43.8 658
1997-12-05 06:08:51 C 03 04 13.09 +14 18 46.9 658
1997-12-05 21:00:08 C 03 02 47.56 +14 28 15.8 046
1997-12-05 21:02:25 C 03 02 47.35 +14 28 16.7 046
1997-12-05 21:04:18 C 03 02 47.16 +14 28 17.2 046
1997-12-05 21:06:12 C 03 02 46.96 +14 28 19.5 046
1997-12-05 23:59:40 C 03 02 29.43 +14 30 09.6 z 118
1997-12-06 00:03:29 C 03 02 29.07 +14 30 11.8 z 118
1997-12-06 21:38:25 C 03 00 26.76 +14 44 19.5 z 587
1997-12-06 21:44:27 C 03 00 26.18 +14 44 23.1 z 587
1997-12-07 19:48:19 C 02 58 22.59 +14 59 04.0 z 910
1997-12-07 20:22:16 C 02 58 19.21 +14 59 27.2 z 910
1997-12-07 20:55:28 C 02 58 15.91 +14 59 49.9 z 910
1997-12-18 07:36:41 C 02 37 14.77 +18 07 23.1 658
1997-12-18 07:42:33 C 02 37 14.32 +18 07 28.1 658
1997-12-18 07:50:49 C 02 37 13.73 +18 07 34.5 658
1997-12-18 19:35:17 C 02 36 24.80 +18 17 12.8 046
1997-12-18 19:37:58 C 02 36 24.54 +18 17 14.8 046
1997-12-18 19:41:00 C 02 36 24.33 +18 17 16.9 046
1997-12-21 12:23:30 C 02 32 06.52 +19 11 36.5 360
1997-12-21 12:29:59 C 02 32 06.06 +19 11 42.1 360
1997-12-21 12:36:30 C 02 32 05.62 +19 11 47.6 360
1997-12-21 19:47:34 C 02 31 39.29 +19 17 49.4 046
1997-12-21 19:49:48 C 02 31 39.13 +19 17 51.1 046
1997-12-21 19:53:26 C 02 31 38.91 +19 17 54.3 046