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
2024-10-09 02:15:35 B 00 17 28.08 +21 53 52.9 Z X33
2024-10-09 02:55:14 V 00 16 48.95 +21 39 40.3 V 270
2024-10-09 02:55:14 v 1 262.25294 +30.53188 270
2024-10-09 03:01:51 V 00 16 41.08 +21 37 43.2 V 270
2024-10-09 03:01:51 v 1 262.25294 +30.53188 270
2024-10-09 03:08:20 V 00 16 33.33 +21 35 48.6 V 270
2024-10-09 03:08:20 v 1 262.25294 +30.53188 270
2024-10-09 03:14:57 V 00 16 25.50 +21 33 51.4 V 270
2024-10-09 03:14:57 v 1 262.25294 +30.53188 270
2024-10-09 06:57:51 C 00 11 54.308 +20 24 53.17 V 703
2024-10-09 07:01:13 C 00 11 50.071 +20 23 48.48 V 703
2024-10-09 07:04:29 C 00 11 45.942 +20 22 45.34 V 703
2024-10-09 07:07:50 C 00 11 41.741 +20 21 39.20 V 703
2024-10-09 09:37:48 C 00 08 40.610 +19 33 16.99 V T08
2024-10-09 09:41:55 C 00 08 35.196 +19 31 53.54 V T08
2024-10-09 09:49:26 C 00 08 25.327 +19 29 21.08 V T08
2024-10-09 10:37:40 C 00 07 21.694 +19 12 52.13 V T08
2024-10-09 12:48:08 V 00 04 44.82 +18 26 08.2 V 270
2024-10-09 12:48:08 v 1 139.13620 +35.33846 270
2024-10-09 12:54:24 V 00 04 36.37 +18 23 53.9 V 270
2024-10-09 12:54:24 v 1 139.13620 +35.33846 270
2024-10-09 13:01:01 V 00 04 27.42 +18 21 32.6 V 270
2024-10-09 13:01:01 v 1 139.13620 +35.33846 270
2024-10-09 13:07:54 V 00 04 18.06 +18 19 04.9 V 270
2024-10-09 13:07:54 v 1 139.13620 +35.33846 270
2024-10-09 17:38:16 C 23 58 24.76 +16 36 57.5 V C40
2024-10-09 17:40:04 C 23 58 22.23 +16 36 15.7 V C40
2024-10-09 17:41:53 C 23 58 19.64 +16 35 33.2 V C40
2024-10-09 17:43:41 C 23 58 17.09 +16 34 51.2 V C40
2024-10-09 17:45:30 C 23 58 14.53 +16 34 09.0 V C40
2024-10-09 17:47:17 C 23 58 11.98 +16 33 27.1 V C40
2024-10-09 17:49:06 C 23 58 09.42 +16 32 44.9 V C40
2024-10-09 17:50:54 C 23 58 06.85 +16 32 02.7 V C40
2024-10-09 17:52:42 C 23 58 04.30 +16 31 20.9 V C40
2024-10-09 17:54:29 C 23 58 01.77 +16 30 39.2 V C40
2024-10-09 17:56:13 C 23 57 59.28 +16 29 58.3 V C40
2024-10-09 17:57:54 C 23 57 56.91 +16 29 19.0 V C40
2024-10-09 18:00:59 C 23 57 52.51 +16 28 07.1 V C40
2024-10-09 18:02:33 C 23 57 50.26 +16 27 30.1 V C40
2024-10-09 18:04:07 C 23 57 48.05 +16 26 53.7 V C40
2024-10-09 18:05:42 C 23 57 45.79 +16 26 16.4 V C40
2024-10-09 18:07:15 C 23 57 43.56 +16 25 39.8 V C40
2024-10-09 18:08:49 C 23 57 41.33 +16 25 03.0 V C40
2024-10-09 18:10:22 C 23 57 39.10 +16 24 26.4 V C40
2024-10-09 18:11:56 C 23 57 36.87 +16 23 49.7 V C40
2024-10-09 18:13:26 C 23 57 34.73 +16 23 14.5 V C40
2024-10-09 18:14:53 C 23 57 32.65 +16 22 40.3 V C40
2024-10-09 18:16:19 C 23 57 30.59 +16 22 06.3 V C40
2024-10-09 18:17:46 C 23 57 28.52 +16 21 32.3 V C40
2024-10-09 22:04:45 C 23 51 57.979 +14 54 30.89 V M22
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)