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
2023-10-02 22:40:33 C 23 24 07.150 -40 29 23.68 V M22
2023-10-02 22:51:41 C 23 24 05.904 -40 29 25.69 V M22
2023-10-04 03:51:10 C 23 21 20.578 -40 34 49.30 V W68
2023-10-04 03:55:47 C 23 21 20.076 -40 34 48.65 V W68
2023-10-04 04:03:08 C 23 21 19.351 -40 34 50.63 V W68
2023-10-04 04:54:00 C 23 21 14.278 -40 34 56.53 V W68
2023-11-03 08:38:40 S 23 08 11.23 -37 10 03.8 L C51
2023-11-03 11:44:47 S 23 08 15.48 -37 08 34.1 L C51
2023-11-03 11:44:58 S 23 08 15.55 -37 08 35.6 L C51
2023-11-03 14:51:06 S 23 08 19.93 -37 07 04.0 L C51
2023-11-04 01:42:57 S 23 08 35.58 -37 01 50.3 L C51
2023-11-04 07:55:23 S 23 08 44.69 -36 58 47.0 L C51
2023-11-04 14:07:48 S 23 08 53.95 -36 55 44.0 L C51
2023-11-04 17:14:05 S 23 08 58.69 -36 54 12.2 L C51