523950 (1998 SZ27)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5067352288 ± 2.00e+00
Semi-major axis (a)0.9051333949 AU ± 3.00e+00
Inclination (i)23.64113598° ± 4.00e+00
Long. of Asc. Node (Ω)166.67288055° ± 5.00e+00
Arg. of Perihelion (ω)47.73088466° ± 6.00e+00
Mean Anomaly (M)280.24867793° ± 3.41e-05
Mean Motion (n)1.1445727273°/day ± 5.69e+00
Perihelion dist (q)0.44647042 AU ± 2.34e+00
Aphelion dist (Q)1.36379637 AU ± 4.87e+00
Orbital Period0.86113032 yr ± 4.28e+00
NGA Modelr2
A2-3.75660344e-06 AU/d²
Physical Parameters
H (abs. magnitude)20.17
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.404″
Uncertainty0
Orbit TypeAten
MOID0.006510 AU
Observations Used129
Oppositions4
Arc Total1998-2023
First Observation Used1998-09-21
Last Observation Used2023-10-04
Observations (164)
Date Type RA Dec Mag Band Observatory
2017-09-07 04:53:53 C 03 35 28.39 +01 02 25.5 q G40
2017-09-10 11:39:43 C 03 21 29.96 -04 52 05.8 o 691
2017-09-10 11:48:12 C 03 21 28.30 -04 52 44.8 o 691
2017-09-10 11:56:25 C 03 21 26.75 -04 53 20.6 o 691
2017-09-15 11:32:57 C 02 58 25.27 -13 40 40.2 o 691
2017-09-15 11:34:31 C 02 58 24.95 -13 40 47.6 o 691
2017-09-15 11:36:04 C 02 58 24.59 -13 40 53.4 o 691
2017-09-15 12:45:57 C 02 58 11.65 -13 45 44.5 L T08
2017-09-15 12:49:14 C 02 58 10.96 -13 45 58.0 L T08
2017-09-15 12:52:32 C 02 58 10.25 -13 46 12.0 L T08
2017-09-15 13:05:44 C 02 58 07.47 -13 47 08.2 L T08
2017-09-17 06:32:43 C 02 49 40.72 -16 39 02.7 q W88
2017-09-17 06:40:19 C 02 49 39.05 -16 39 34.0 q W88
2017-09-17 06:47:47 C 02 49 37.45 -16 40 04.5 q W88
2017-09-17 12:41:52 C 02 48 24.21 -17 04 33.2 L T05
2017-09-17 13:04:16 C 02 48 19.41 -17 06 04.7 L T05
2017-09-17 13:14:48 C 02 48 17.06 -17 06 46.7 L T05
2017-09-17 13:22:42 C 02 48 15.34 -17 07 18.6 L T05
2017-09-20 07:29:23 C 02 34 22.27 -21 22 51.2 q 703
2017-09-20 07:37:08 C 02 34 20.65 -21 23 17.6 q 703
2017-09-20 07:44:53 C 02 34 18.87 -21 23 45.7 q 703
2017-09-21 12:23:11 C 02 28 10.27 -23 06 29.3 L T05
2017-09-21 12:37:29 C 02 28 07.02 -23 07 18.8 L T05
2017-09-21 12:57:03 C 02 28 02.64 -23 08 27.5 L T05
2017-09-21 13:11:30 C 02 27 59.33 -23 09 18.1 L T05
2017-09-23 12:03:49 C 02 17 53.45 -25 45 54.6 L T08
2017-09-23 12:15:21 C 02 17 50.90 -25 46 30.1 L T08
2017-09-23 12:24:59 C 02 17 48.72 -25 47 01.6 L T08
2017-09-23 12:37:30 C 02 17 46.04 -25 47 41.9 L T08
2017-09-25 12:15:27 C 02 07 28.50 -28 11 31.8 L T05
2017-09-25 12:18:06 C 02 07 27.91 -28 11 39.0 L T05
2017-09-25 12:29:21 C 02 07 25.32 -28 12 10.9 L T05
2017-09-25 12:31:59 C 02 07 24.80 -28 12 18.3 L T05
2017-09-25 12:43:15 C 02 07 22.29 -28 12 51.0 L T05
2017-09-25 12:45:54 C 02 07 21.62 -28 12 58.5 L T05
2017-09-25 12:57:10 C 02 07 19.02 -28 13 29.6 L T05
2017-09-25 12:59:50 C 02 07 18.52 -28 13 38.3 L T05
2017-10-07 09:23:19 C 01 10 13.549 -37 22 55.45 L F51
2017-10-07 09:49:15 C 01 10 08.725 -37 23 24.86 L F51
2017-10-07 10:02:15 C 01 10 06.317 -37 23 39.54 L F51
2017-10-29 07:41:47 C 00 08 48.389 -39 42 44.56 L F51
2017-10-29 08:06:24 C 00 08 46.809 -39 42 37.99 L F51
2017-10-29 08:18:42 C 00 08 46.007 -39 42 34.60 L F51
2018-09-07 11:09:06 C 04 49 49.86 -00 10 12.1 o 291
2018-09-07 11:25:16 C 04 49 50.82 -00 10 29.1 o 291
2018-09-07 11:41:24 C 04 49 51.62 -00 10 47.8 o 291
2018-10-05 10:01:12 C 05 14 51.97 -15 59 07.5 o 291
2018-10-05 10:07:50 C 05 14 52.01 -15 59 18.9 o 291
2018-10-05 10:14:40 C 05 14 52.06 -15 59 31.0 o 291
2018-12-07 08:28:56 S 02 52 32.99 -52 29 08.8 L C51