2018 TD4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3730157950 ± 1.41e-08
Semi-major axis (a)1.4170539193 AU ± 5.19e-09
Inclination (i)4.59401703° ± 2.23e-06
Long. of Asc. Node (Ω)129.64671259° ± 6.54e-05
Arg. of Perihelion (ω)358.19364139° ± 6.41e-05
Mean Anomaly (M)9.56351232° ± 8.57e-06
Mean Motion (n)0.5842957304°/day ± 3.21e-09
Perihelion dist (q)0.88847043 AU ± 2.03e-08
Aphelion dist (Q)1.94563741 AU ± 2.12e-08
Orbital Period1.68686203 yr ± 9.27e-09
Physical Parameters
H (abs. magnitude)22.11
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.265″
Uncertainty0
Orbit TypeApollo
MOID0.059960 AU
Observations Used121
Oppositions2
Arc Total2013-2019
First Observation Used2013-11-01
Last Observation Used2019-05-10
Observations (128)
Date Type RA Dec Mag Band Observatory
2013-11-01 14:13:37 C 05 04 30.487 -02 01 38.51 V F51
2013-11-01 14:30:36 C 05 04 32.487 -02 02 00.56 V F51
2014-05-06 12:06:09 C 17 35 19.431 -09 50 01.35 V F51
2014-05-06 12:23:29 C 17 35 18.038 -09 50 00.53 V F51
2014-05-06 12:40:49 C 17 35 16.644 -09 49 59.62 V F51
2014-05-28 09:17:36 C 16 48 38.190 -10 07 06.37 V F51
2014-05-28 09:35:55 C 16 48 36.439 -10 07 08.49 V F51
2014-05-28 09:54:12 C 16 48 34.696 -10 07 10.85 V F51
2014-05-28 10:12:29 C 16 48 32.940 -10 07 12.98 V F51
2014-06-06 09:15:09 C 16 30 16.968 -10 39 02.21 V F51
2014-06-06 09:51:40 C 16 30 13.938 -10 39 08.62 V F51
2018-10-06 08:13:25 C 01 16 05.65 -06 21 20.2 V G96
2018-10-06 08:20:55 C 01 16 05.17 -06 21 27.0 V G96
2018-10-06 08:28:26 C 01 16 04.59 -06 21 32.6 V G96
2018-10-06 08:35:57 C 01 16 04.00 -06 21 40.0 V G96
2018-10-06 11:07:14 C 01 15 53.55 -06 23 49.7 V G96
2018-10-06 11:10:38 C 01 15 53.29 -06 23 53.2 V G96
2018-10-06 11:12:43 C 01 15 53.17 -06 23 54.9 V G96
2018-10-06 11:14:48 C 01 15 52.97 -06 23 56.5 V G96
2018-10-07 06:07:35 C 01 14 37.86 -06 40 00.1 U 807
2018-10-07 06:14:45 C 01 14 37.34 -06 40 06.3 U 807
2018-10-07 06:18:42 C 01 14 37.89 -06 40 30.7 V G96
2018-10-07 06:20:30 C 01 14 36.93 -06 40 11.4 U 807
2018-10-07 06:21:59 C 01 14 37.61 -06 40 32.6 V G96
2018-10-07 06:26:53 C 01 14 37.26 -06 40 36.0 V G96
2018-10-07 06:31:39 C 01 14 36.94 -06 40 40.6 V G96
2018-10-08 13:41:21 C 01 12 27.36 -07 07 30.0 V 474
2018-10-08 13:46:25 C 01 12 26.96 -07 07 34.7 V 474
2018-10-08 13:51:29 C 01 12 26.60 -07 07 39.4 V 474
2018-10-10 00:00:44 C 01 09 59.81 -07 38 07.4 V L01
2018-10-10 00:11:56 C 01 09 58.88 -07 38 17.9 V L01
2018-10-10 07:58:41 C 01 09 24.76 -07 45 05.5 V V06
2018-10-10 08:03:25 C 01 09 24.40 -07 45 09.5 V V06
2018-10-10 08:08:09 C 01 09 24.03 -07 45 13.7 V V06
2018-10-10 08:12:53 C 01 09 23.67 -07 45 17.7 V V06
2018-10-13 05:31:19 C 01 04 07.48 -08 45 55.6 U 807
2018-10-13 05:37:57 C 01 04 06.91 -08 46 01.2 U 807
2018-10-13 05:44:17 C 01 04 06.39 -08 46 07.0 U 807
2018-10-14 14:39:02 C 01 01 29.77 -09 14 46.9 V 474
2018-10-14 14:44:06 C 01 01 29.39 -09 14 51.8 V 474
2018-10-14 14:49:09 C 01 01 28.93 -09 14 55.5 V 474
2018-10-18 07:54:09 C 00 54 10.44 -10 31 32.9 V V06
2018-10-18 07:57:43 C 00 54 10.12 -10 31 35.9 V V06
2018-10-28 03:24:46 C 00 34 14.73 -13 28 47.7 u 807
2018-10-28 03:40:44 C 00 34 13.32 -13 28 58.0 u 807
2018-10-28 03:51:11 C 00 34 13.32 -13 29 27.4 V V06
2018-10-28 03:54:44 C 00 34 12.99 -13 29 29.8 V V06
2018-10-28 03:56:43 C 00 34 11.91 -13 29 08.2 u 807
2018-10-28 04:01:51 C 00 34 12.38 -13 29 34.2 V V06
2018-11-05 09:41:31 C 00 18 48.67 -15 15 57.2 V 474