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
2024-09-02 08:50:29 C 02 11 08.707 +41 13 04.08 V G96
2024-09-02 08:57:58 C 02 11 08.858 +41 13 06.96 V G96
2024-09-02 09:05:27 C 02 11 09.013 +41 13 09.01 V G96
2024-09-02 09:12:55 C 02 11 09.168 +41 13 11.35 V G96
2024-09-04 12:01:56 C 02 12 21.991 +41 26 57.91 V T08
2024-09-04 12:08:12 C 02 12 22.102 +41 26 58.49 V T08
2024-09-04 12:55:53 C 02 12 22.618 +41 27 11.70 V T08
2024-09-04 13:02:09 C 02 12 22.714 +41 27 13.18 V T08
2024-09-06 13:39:38 C 02 13 19.964 +41 39 11.37 X F51
2024-09-06 13:55:50 C 02 13 20.106 +41 39 15.11 X F51
2024-09-06 14:12:04 C 02 13 20.245 +41 39 18.80 X F51
2024-09-08 09:46:16 C 02 14 01.619 +41 48 52.52 V G96
2024-09-08 09:53:38 C 02 14 01.651 +41 48 54.29 V G96
2024-09-08 10:01:00 C 02 14 01.694 +41 48 55.87 V G96
2024-09-08 10:08:21 C 02 14 01.720 +41 48 57.49 V G96
2024-09-08 11:37:52 C 02 14 03.742 +41 49 19.38 V T05
2024-09-08 11:40:28 C 02 14 03.886 +41 49 19.74 V T05
2024-09-08 11:45:41 C 02 14 03.859 +41 49 21.43 V T05
2024-09-08 11:54:34 C 02 14 03.850 +41 49 23.09 V T05
2024-09-10 10:02:39 C 02 14 34.870 +41 58 12.47 V T05
2024-09-10 10:05:17 C 02 14 34.764 +41 58 13.44 V T05
2024-09-10 10:09:51 C 02 14 34.841 +41 58 14.02 V T05
2024-09-10 10:11:48 C 02 14 34.831 +41 58 16.46 V T05
2024-09-10 10:18:20 C 02 14 34.894 +41 58 15.60 V T05
2024-09-14 13:55:44 C 02 14 45.946 +42 12 11.84 V T05
2024-09-14 14:00:18 C 02 14 45.770 +42 12 12.24 V T05
2024-09-14 14:09:42 C 02 14 45.631 +42 12 13.54 V T05
2024-09-14 14:24:19 C 02 14 45.442 +42 12 13.57 V T05
2024-09-18 11:39:58 C 02 13 37.980 +42 16 14.52 V T05
2024-09-18 11:44:32 C 02 13 37.822 +42 16 15.13 V T05
2024-09-18 12:11:13 C 02 13 36.814 +42 16 15.24 V T05
2024-09-18 12:17:45 C 02 13 36.691 +42 16 14.59 V T05
2024-09-18 23:43:56 C 02 13 20.78 +42 15 41.6 V C40
2024-09-19 00:05:20 C 02 13 20.03 +42 15 40.7 V C40
2024-09-19 00:26:33 C 02 13 19.30 +42 15 39.8 V C40
2024-09-19 11:41:48 C 02 13 03.619 +42 15 25.20 V T08
2024-09-19 11:43:08 C 02 13 03.571 +42 15 25.99 V T08
2024-09-19 11:44:28 C 02 13 03.504 +42 15 25.09 V T08
2024-09-19 11:59:51 C 02 13 02.815 +42 15 25.34 V T08
2024-09-19 12:00:31 C 02 13 02.854 +42 15 25.92 V T08
2024-09-19 12:25:28 C 02 13 01.807 +42 15 23.58 V T08
2024-09-19 12:27:27 C 02 13 01.764 +42 15 23.36 V T08
2024-09-19 23:39:50 C 02 12 42.76 +42 14 23.6 V C40
2024-09-19 23:51:59 C 02 12 42.32 +42 14 22.2 V C40
2024-09-20 00:04:08 C 02 12 41.83 +42 14 21.4 V C40
2024-09-21 00:18:32 C 02 11 54.08 +42 12 00.8 V C40
2024-09-21 00:30:41 C 02 11 53.50 +42 11 57.6 V C40
2024-09-21 00:42:49 C 02 11 52.88 +42 11 56.4 V C40
2024-09-22 11:25:25 C 02 10 29.254 +42 06 43.81 V T05
2024-09-22 11:30:01 C 02 10 28.910 +42 06 42.88 V T05
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)