4947 Ninkasi (1988 TJ1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1684400316 ± 2.00e+00
Semi-major axis (a)1.3701127590 AU ± 3.00e+00
Inclination (i)15.65180501° ± 4.00e+00
Long. of Asc. Node (Ω)215.42213933° ± 5.00e+00
Arg. of Perihelion (ω)192.96274282° ± 6.00e+00
Mean Anomaly (M)30.35999586° ± 8.59e-06
Mean Motion (n)0.6145791326°/day ± 2.02e+00
Perihelion dist (q)1.13933092 AU ± 3.71e+00
Aphelion dist (Q)1.60089460 AU ± 4.45e+00
Orbital Period1.60374186 yr ± 5.27e+00
NGA Modelr2
A2-1.97295877e-06 AU/d²
Physical Parameters
H (abs. magnitude)18.07
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.365″
Uncertainty0
Orbit TypeAmor
MOID0.148389 AU
Observations Used954
Oppositions18
Arc Total1978-2026
First Observation Used1978-02-17
Last Observation Used2026-03-26
Observations (999)
Date Type RA Dec Mag Band Observatory
2015-06-11 05:18:40 C 15 04 19.39 +02 42 22.1 R G45
2015-06-11 05:21:08 C 15 04 19.36 +02 42 23.3 q 703
2015-06-11 05:28:17 C 15 04 19.07 +02 42 26.3 R G45
2015-06-11 05:29:49 C 15 04 19.07 +02 42 27.7 q 703
2015-06-11 05:40:44 C 15 04 18.65 +02 42 31.8 q 703
2015-06-11 05:46:24 C 15 04 18.39 +02 42 33.7 R G45
2015-06-11 05:53:32 C 15 04 18.14 +02 42 37.2 R G45
2015-06-11 06:01:17 C 15 04 17.86 +02 42 40.3 R G45
2015-06-11 06:10:25 C 15 04 17.53 +02 42 44.1 R G45
2015-06-11 06:17:41 C 15 04 17.25 +02 42 47.3 R G45
2015-06-11 06:24:46 C 15 04 16.99 +02 42 50.3 R G45
2015-06-11 08:19:36 C 15 04 12.94 +02 43 38.9 q 703
2015-06-11 08:30:24 C 15 04 12.47 +02 43 43.8 q 703
2015-06-11 08:51:25 C 15 04 11.81 +02 43 51.2 q 703
2015-06-11 14:00:28 C 15 04 02.08 +02 46 01.9 q D29
2015-06-11 14:20:47 C 15 04 01.31 +02 46 10.8 q D29
2015-06-11 14:41:06 C 15 04 00.63 +02 46 18.7 q D29
2015-06-18 03:54:44 C 14 59 52.56 +03 38 59.8 q G96
2015-06-18 04:02:05 C 14 59 52.40 +03 39 01.8 q G96
2015-06-18 04:09:26 C 14 59 52.23 +03 39 03.7 q G96
2015-06-18 04:16:46 C 14 59 52.05 +03 39 05.7 q G96
2015-06-22 07:46:50 C 14 58 19.912 +04 00 02.16 L F51
2015-06-22 08:05:52 C 14 58 19.638 +04 00 05.33 L F51
2015-06-22 08:24:54 C 14 58 19.365 +04 00 08.41 L F51
2015-06-22 08:44:04 C 14 58 19.093 +04 00 11.55 L F51
2015-07-09 07:05:56 C 15 00 14.552 +04 05 36.29 L F51
2015-07-09 07:24:05 C 15 00 14.856 +04 05 34.18 L F51
2015-07-09 07:42:23 C 15 00 15.162 +04 05 32.08 L F51
2015-07-09 08:00:21 C 15 00 15.465 +04 05 29.95 L F51
2015-07-12 07:25:09 C 15 01 49.146 +03 55 58.66 L F51
2015-07-12 07:43:26 C 15 01 49.545 +03 55 55.92 L F51
2015-07-12 08:01:34 C 15 01 49.929 +03 55 53.21 L F51
2017-10-24 11:04:16 C 08 40 03.18 +03 49 38.0 U G96
2017-10-24 11:11:41 C 08 40 04.00 +03 49 26.9 U G96
2017-10-24 11:19:05 C 08 40 04.80 +03 49 17.8 U G96
2017-10-24 11:26:29 C 08 40 05.62 +03 49 08.6 U G96
2017-10-29 11:42:44 C 08 53 46.34 +01 13 34.2 U 703
2017-10-29 11:50:17 C 08 53 47.09 +01 13 25.0 U 703
2017-10-29 11:57:52 C 08 53 47.92 +01 13 16.6 U 703
2017-10-29 12:05:25 C 08 53 48.80 +01 13 05.8 U 703
2017-12-01 19:11:20 S 10 10 10.150 -15 23 59.86 L C51
2017-12-02 10:54:02 S 10 11 24.624 -15 42 06.66 L C51
2017-12-02 12:28:17 S 10 11 31.999 -15 43 57.83 L C51
2017-12-23 11:24:45 C 10 45 03.39 -24 38 18.2 U 703
2017-12-23 11:32:35 C 10 45 03.79 -24 38 25.7 U 703
2017-12-23 11:40:25 C 10 45 04.19 -24 38 32.7 U 703
2017-12-23 11:48:15 C 10 45 04.65 -24 38 40.6 U 703
2018-01-03 13:06:43 C 10 56 55.904 -28 33 33.61 U F51
2018-01-03 13:20:42 C 10 56 56.343 -28 33 44.95 U F51
2018-01-03 13:34:39 C 10 56 56.784 -28 33 56.33 U F51