2017 TW4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4583123434 ± 1.33e-08
Semi-major axis (a)1.9211692386 AU ± 3.47e-09
Inclination (i)1.98403620° ± 1.30e-06
Long. of Asc. Node (Ω)306.49800013° ± 1.03e-04
Arg. of Perihelion (ω)101.36349838° ± 1.14e-04
Mean Anomaly (M)5.38371603° ± 7.56e-06
Mean Motion (n)0.3701381414°/day ± 1.00e-09
Perihelion dist (q)1.04067366 AU ± 2.56e-08
Aphelion dist (Q)2.80166481 AU ± 2.60e-08
Orbital Period2.66286063 yr ± 7.21e-09
NGA Modelr2
A2-2.29665015e-13 ± 1.05e-14 AU/d²
Physical Parameters
H (abs. magnitude)25.01
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.292″
Uncertainty0
Orbit TypeAmor
MOID0.059946 AU
Observations Used73
Oppositions10
Arc Total2009-2025
First Observation Used2009-10-02
Last Observation Used2025-10-01
Observations (74)
Date Type RA Dec Mag Band Observatory
2017-11-20 08:57:14 C 07 53 13.32 +39 21 38.1 u H21
2017-11-20 09:15:05 C 07 53 15.35 +39 21 07.8 u H21
2017-11-20 09:37:20 C 07 53 17.91 +39 20 29.8 u H21
2017-11-21 14:04:14 C 07 57 01.583 +38 33 01.93 L F51
2017-11-21 14:21:16 C 07 57 03.187 +38 32 33.96 L F51
2017-11-21 14:38:17 C 07 57 04.797 +38 32 05.65 L F51
2018-01-14 05:24:05 C 07 44 59.15 +23 13 58.9 u H21
2018-01-14 05:42:29 C 07 44 58.31 +23 13 53.9 u H21
2018-01-14 06:03:31 C 07 44 57.36 +23 13 48.5 u H21
2025-09-15 08:58:58 C 00 09 10.007 +11 00 35.04 V F52
2025-09-15 09:13:44 C 00 09 10.753 +11 00 54.42 V F52
2025-09-15 09:28:33 C 00 09 11.497 +11 01 14.19 V F52
2025-09-15 09:43:23 C 00 09 12.228 +11 01 33.64 V F52
2025-09-23 12:10:57 C 00 23 42.532 +16 00 44.62 V F51
2025-09-23 12:27:42 C 00 23 43.840 +16 01 14.60 V F51
2025-09-23 12:44:28 C 00 23 45.143 +16 01 43.75 V F51
2025-09-23 13:01:17 C 00 23 46.452 +16 02 13.99 V F51
2025-09-30 07:51:40 C 00 42 19.660 +21 39 35.10 V I52
2025-09-30 07:58:02 C 00 42 20.452 +21 39 50.04 V I52
2025-09-30 08:08:59 C 00 42 21.809 +21 40 15.46 V I52
2025-09-30 08:15:21 C 00 42 22.590 +21 40 30.90 V I52
2025-10-01 07:50:08 C 00 45 52.212 +22 37 41.87 V F52
2025-10-01 08:08:33 C 00 45 54.680 +22 38 28.15 V F52
2025-10-01 08:26:54 C 00 45 57.133 +22 39 14.76 V F52