1999 TW16

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7347679379 ± 1.56e-07
Semi-major axis (a)1.4240633054 AU ± 9.76e-10
Inclination (i)34.68511422° ± 1.69e-05
Long. of Asc. Node (Ω)28.16194552° ± 4.20e-06
Arg. of Perihelion (ω)134.82477553° ± 1.65e-05
Mean Anomaly (M)89.15326396° ± 6.77e-06
Mean Motion (n)0.5799870976°/day ± 5.96e-10
Perihelion dist (q)0.37770725 AU ± 2.23e-07
Aphelion dist (Q)2.47041936 AU ± 2.23e-07
Orbital Period1.69939346 yr ± 1.75e-09
Physical Parameters
H (abs. magnitude)19.51
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.302″
Uncertainty0
Orbit TypeApollo
MOID0.151986 AU
Observations Used182
Oppositions9
Arc Total1999-2021
First Observation Used1999-10-13
Last Observation Used2021-12-03
Observations (198)
Date Type RA Dec Mag Band Observatory
2021-09-15 12:23:43 C 02 37 47.258 -03 28 01.11 U F52
2021-09-30 11:58:06 C 02 14 06.614 -04 34 39.48 U F52
2021-09-30 12:13:53 C 02 14 05.062 -04 34 42.77 U F52
2021-09-30 12:29:37 C 02 14 03.503 -04 34 45.98 U F52
2021-09-30 12:45:19 C 02 14 01.960 -04 34 49.18 U F52
2021-10-04 10:56:14 C 02 04 10.075 -04 54 06.12 U F52
2021-10-04 11:13:49 C 02 04 08.017 -04 54 09.66 U F52
2021-10-04 11:31:18 C 02 04 05.973 -04 54 13.31 U F52
2021-10-04 11:48:50 C 02 04 03.914 -04 54 16.75 U F52
2021-10-05 12:06:54 C 02 01 13.668 -04 59 09.83 U F51
2021-10-05 12:39:32 C 02 01 09.682 -04 59 16.38 U F51
2021-10-05 12:55:53 C 02 01 07.684 -04 59 19.69 U F51
2021-10-06 13:53:23 C 01 58 04.972 -05 04 15.54 U F51
2021-10-06 14:11:29 C 01 58 02.677 -05 04 19.08 U F51
2021-10-06 14:29:36 C 01 58 00.384 -05 04 22.56 U F51
2021-10-11 07:31:53 C 01 42 36.77 -05 25 02.0 V G96
2021-10-11 07:39:22 C 01 42 35.64 -05 25 02.9 V G96
2021-10-11 07:46:50 C 01 42 34.51 -05 25 04.4 V G96
2021-10-11 07:54:18 C 01 42 33.38 -05 25 05.7 V G96
2021-10-24 08:35:16 C 00 47 07.854 -05 47 50.09 U F51
2021-10-24 08:51:42 C 00 47 04.459 -05 47 49.11 U F51
2021-10-24 09:08:12 C 00 47 01.073 -05 47 48.64 U F51
2021-10-25 06:25:31 C 00 42 42.48 -05 46 32.4 V 703
2021-10-25 06:48:55 C 00 42 37.77 -05 46 29.7 V 703
2021-10-29 05:25:21 C 00 23 03.78 -05 35 00.7 V G96
2021-10-29 05:32:52 C 00 23 02.19 -05 34 59.4 V G96
2021-10-29 05:40:24 C 00 23 00.58 -05 34 58.2 V G96
2021-10-29 05:47:59 C 00 22 58.97 -05 34 56.9 V G96
2021-10-29 07:09:59 C 00 22 42.198 -05 34 39.92 U F52
2021-10-29 07:27:24 C 00 22 38.491 -05 34 36.85 U F52
2021-10-29 08:02:16 C 00 22 31.043 -05 34 30.95 U F52
2021-11-01 05:01:03 C 00 08 03.24 -05 20 00.4 V 703
2021-11-01 05:08:23 C 00 08 01.57 -05 19 58.5 V 703
2021-11-01 05:23:05 C 00 07 58.42 -05 19 55.0 V 703
2021-11-01 07:08:10 C 00 07 36.716 -05 19 26.43 U F51
2021-11-01 07:25:16 C 00 07 33.063 -05 19 22.14 U F51
2021-11-01 07:42:18 C 00 07 29.423 -05 19 17.86 U F51
2021-11-01 07:59:23 C 00 07 25.765 -05 19 13.58 U F51
2021-11-11 02:31:08 C 23 20 15.04 -03 53 13.3 V G96
2021-11-11 02:38:32 C 23 20 13.60 -03 53 09.8 V G96
2021-11-11 02:45:56 C 23 20 12.18 -03 53 06.4 V G96
2021-11-28 05:03:04 C 22 16 03.997 +00 03 18.55 U F51
2021-11-28 05:21:09 C 22 16 01.647 +00 03 30.11 U F51
2021-11-28 05:39:17 C 22 15 59.294 +00 03 41.74 U F51
2021-12-03 02:27:46 C 22 02 04.37 +01 18 46.9 V G96
2021-12-03 02:35:54 C 22 02 03.47 +01 18 51.4 V G96
2021-12-03 02:44:03 C 22 02 02.47 +01 18 57.1 V G96
2021-12-03 02:52:12 C 22 02 01.55 +01 19 02.2 V G96