363027 (1998 ST27)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5297679948 ± 2.00e+00
Semi-major axis (a)0.8198152879 AU ± 3.00e+00
Inclination (i)21.05065934° ± 4.00e+00
Long. of Asc. Node (Ω)197.51457964° ± 5.00e+00
Arg. of Perihelion (ω)322.43883834° ± 6.00e+00
Mean Anomaly (M)88.40523181° ± 9.78e-06
Mean Motion (n)1.3278170992°/day ± 7.29e+00
Perihelion dist (q)0.38550339 AU ± 2.16e+00
Aphelion dist (Q)1.25412719 AU ± 4.87e+00
Orbital Period0.74229070 yr ± 4.07e+00
NGA Modelr2
A21.74180921e-06 AU/d²
Physical Parameters
H (abs. magnitude)19.58
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.474″
Uncertainty0
Orbit TypeAten
MOID0.009115 AU
Observations Used934
Oppositions9
Arc Total1998-2024
First Observation Used1998-09-24
Last Observation Used2024-10-14
Observations (1124)
Date Type RA Dec Mag Band Observatory
2024-10-07 03:15:16 V 00 58 07.60 +31 15 58.6 V 270
2024-10-07 03:15:16 v 1 262.25303 +30.53195 270
2024-10-07 03:21:45 V 00 58 03.16 +31 15 08.5 V 270
2024-10-07 03:21:45 v 1 262.25303 +30.53195 270
2024-10-07 03:28:10 V 00 57 58.77 +31 14 18.6 V 270
2024-10-07 03:28:10 v 1 262.25303 +30.53195 270
2024-10-07 03:34:43 V 00 57 54.26 +31 13 28.1 V 270
2024-10-07 03:34:43 v 1 262.25303 +30.53195 270
2024-10-07 03:35:55 V 00 57 53.79 +31 12 14.0 V 270
2024-10-07 03:35:55 v 1 237.34897 +47.62041 270
2024-10-07 03:48:29 V 00 57 45.39 +31 10 36.4 V 270
2024-10-07 03:48:29 v 1 237.34897 +47.62041 270
2024-10-07 04:04:44 V 00 57 34.39 +31 08 28.8 V 270
2024-10-07 04:04:44 v 1 237.34897 +47.62041 270
2024-10-07 04:17:34 V 00 57 25.68 +31 06 48.4 V 270
2024-10-07 04:17:34 v 1 237.34897 +47.62041 270
2024-10-07 09:49:54 C 00 53 33.425 +30 21 49.50 V T05
2024-10-07 09:55:06 C 00 53 29.482 +30 21 03.82 V T05
2024-10-07 10:03:37 C 00 53 23.030 +30 19 48.86 V T05
2024-10-07 10:27:44 C 00 53 04.692 +30 16 14.92 V T05
2024-10-07 10:59:00 C 00 52 40.793 +30 11 34.26 V T05
2024-10-07 11:03:39 C 00 52 37.229 +30 10 52.21 V T05
2024-10-07 11:11:36 C 00 52 31.150 +30 09 40.18 V T05
2024-10-07 12:01:22 C 00 51 52.920 +30 02 02.98 V T05
2024-10-07 16:58:43 C 00 48 28.558 +29 13 04.26 V L54
2024-10-07 18:38:00 C 00 47 10.750 +28 56 53.74 V L54
2024-10-07 19:19:49 C 00 46 36.67 +28 49 47.3 V M32
2024-10-07 19:20:38 C 00 46 36.01 +28 49 39.1 V M32
2024-10-07 19:21:26 C 00 46 35.35 +28 49 30.9 V M32
2024-10-07 19:22:16 C 00 46 34.69 +28 49 22.6 V M32
2024-10-07 19:23:05 C 00 46 34.02 +28 49 14.4 V M32
2024-10-07 20:04:09 C 00 46 00.751 +28 42 24.88 V L54
2024-10-08 01:56:33 V 00 41 17.12 +27 38 05.9 V 270
2024-10-08 01:56:33 v 1 272.08249 +42.83014 270
2024-10-08 02:09:21 V 00 41 05.94 +27 35 41.9 V 270
2024-10-08 02:09:21 v 1 272.08249 +42.83014 270
2024-10-08 02:12:11 V 00 41 06.28 +27 35 36.9 V 270
2024-10-08 02:12:11 v 1 262.25290 +30.53185 270
2024-10-08 02:19:24 V 00 40 59.98 +27 34 16.2 V 270
2024-10-08 02:19:24 v 1 262.25290 +30.53185 270
2024-10-08 02:22:55 V 00 40 54.11 +27 33 08.6 V 270
2024-10-08 02:22:55 v 1 272.08249 +42.83014 270
2024-10-08 02:25:33 V 00 40 54.61 +27 33 06.9 V 270
2024-10-08 02:25:33 v 1 262.25290 +30.53185 270
2024-10-08 02:31:46 V 00 40 49.11 +27 31 56.4 V 270
2024-10-08 02:31:46 v 1 262.25290 +30.53185 270
2024-10-08 02:36:13 V 00 40 42.43 +27 30 37.8 V 270
2024-10-08 02:36:13 v 1 272.08249 +42.83014 270
2024-10-08 06:19:58 C 00 37 23.048 +26 46 49.58 V 703
2024-10-08 06:23:22 C 00 37 19.866 +26 46 07.86 V 703
Radar Observations (13)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2001-10-07 01:39:00 77102108.2 12 us 2380 -1 -1
2001-10-09 00:34:00 107972.7 1 Hz 2380 -1 -1
2001-10-09 00:54:00 67766228.3 8 us 2380 -1 -1
2001-10-09 02:47:00 67469526.191 1.5 us 2380 -1 -1
2004-10-03 10:24:00 139197784 2 us 2380 -1 -1
2004-10-04 09:50:00 133969457.4 2 us 2380 -1 -1
2004-10-06 11:14:00 125499084.5 2 us 2380 -1 -1
2024-10-04 11:00:00 77195497.4 10 us 8560 -14 -14
2024-10-04 11:30:00 77005452.764 1 us 8560 -14 -14
2024-10-05 06:20:00 69794337.38 2 us 8560 -14 -14
2024-10-09 04:10:00 36603483 1 us 8560 -14 -14
2024-10-11 01:40:00 25630281.69 0.5 us 8560 -14 -14
2024-10-12 01:30:00 23741602 0.5 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)