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
2018-12-07 11:37:26 S 02 52 00.93 -52 29 19.8 L C51
2018-12-07 13:11:41 S 02 51 44.83 -52 29 25.8 L C51
2018-12-07 14:45:56 S 02 51 28.79 -52 29 31.3 L C51
2018-12-07 16:20:11 S 02 51 12.80 -52 29 35.3 L C51
2018-12-07 17:54:26 S 02 50 56.76 -52 29 40.2 L C51
2018-12-07 22:37:11 S 02 50 08.70 -52 29 50.4 L C51
2018-12-08 00:11:15 S 02 49 52.57 -52 29 53.2 L C51
2018-12-08 00:11:26 S 02 49 52.68 -52 29 54.2 L C51
2018-12-08 01:45:30 S 02 49 36.74 -52 29 56.1 L C51
2018-12-08 04:54:01 S 02 49 04.80 -52 30 01.8 L C51
2023-09-07 09:22:52 C 03 37 05.544 +12 20 06.43 V W68
2023-09-07 09:28:45 C 03 36 59.789 +12 18 34.09 V W68
2023-09-07 09:38:04 C 03 36 50.746 +12 16 08.15 V W68
2023-09-07 09:51:50 C 03 36 37.325 +12 12 32.54 V W68
2023-09-08 01:25:59 B 03 22 10.546 +08 03 23.94 V L65
2023-09-08 01:28:04 B 03 22 08.566 +08 02 51.14 V L65
2023-09-08 01:30:08 B 03 22 06.610 +08 02 18.10 V L65
2023-09-08 22:14:26 C 03 03 16.72 +02 33 12.3 X L99
2023-09-08 22:18:44 C 03 03 12.85 +02 32 04.7 X L99
2023-09-08 22:23:03 C 03 03 08.97 +02 30 56.2 X L99
2023-09-09 03:01:53 B 02 58 57.127 +01 18 08.17 V L65
2023-09-09 03:03:41 B 02 58 55.500 +01 17 40.06 V L65
2023-09-09 03:05:28 B 02 58 53.863 +01 17 12.19 V L65
2023-09-11 02:19:20 B 02 19 25.147 -10 07 34.68 V L65
2023-09-11 02:21:02 B 02 19 23.774 -10 07 56.93 V L65
2023-09-11 02:22:44 B 02 19 22.411 -10 08 18.82 V L65
2023-09-11 23:21:13 C 02 03 31.70 -14 27 38.7 X L99
2023-09-11 23:23:43 C 02 03 29.87 -14 28 08.2 X L99
2023-09-11 23:26:13 C 02 03 28.02 -14 28 36.6 X L99
2023-09-14 00:47:16 C 01 30 25.416 -22 35 37.28 V M22
2023-09-14 00:52:24 C 01 30 22.157 -22 36 19.76 V M22
2023-09-14 01:00:31 C 01 30 17.011 -22 37 27.01 V M22
2023-09-14 02:42:23 C 01 29 12.802 -22 51 20.66 V M22
2023-09-14 20:17:51 C 01 19 04.963 -25 06 00.14 X L68
2023-09-14 20:25:14 C 01 19 00.677 -25 06 54.18 X L68
2023-09-14 20:32:27 C 01 18 56.498 -25 07 46.85 X L68
2023-09-15 08:01:09 C 01 12 34.819 -26 28 12.65 V 703
2023-09-15 08:08:27 C 01 12 30.773 -26 29 00.02 V 703
2023-09-15 08:15:46 C 01 12 26.680 -26 29 48.26 V 703
2023-09-15 08:23:04 C 01 12 22.583 -26 30 36.50 V 703
2023-09-22 21:18:03 C 00 04 05.225 -37 17 40.16 V M22
2023-09-22 21:22:11 C 00 04 04.118 -37 17 47.51 V M22
2023-09-22 22:12:48 C 00 03 50.419 -37 19 15.67 V M22
2023-09-22 22:42:23 C 00 03 42.422 -37 20 06.11 V M22
2023-09-22 23:57:21 C 00 03 22.277 -37 22 11.64 V M22
2023-09-24 03:15:56 C 23 56 53.201 -38 04 05.16 V W68
2023-09-24 03:18:33 C 23 56 52.591 -38 04 08.98 V W68
2023-09-24 04:34:24 C 23 56 34.284 -38 05 54.85 V W68
2023-10-02 21:44:35 C 23 24 13.459 -40 29 11.76 V M22
2023-10-02 21:50:31 C 23 24 12.749 -40 29 12.95 V M22