297300 (1998 SC15)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4144877459 ± 1.07e-08
Semi-major axis (a)1.2729533676 AU ± 6.34e-10
Inclination (i)16.08208693° ± 3.54e-06
Long. of Asc. Node (Ω)198.66904007° ± 3.76e-06
Arg. of Perihelion (ω)277.50880644° ± 3.99e-06
Mean Anomaly (M)252.07551693° ± 2.85e-06
Mean Motion (n)0.6862676619°/day ± 5.13e-10
Perihelion dist (q)0.74532980 AU ± 1.36e-08
Aphelion dist (Q)1.80057694 AU ± 1.36e-08
Orbital Period1.43621263 yr ± 1.07e-09
Physical Parameters
H (abs. magnitude)19.29
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.332″
Uncertainty0
Orbit TypeApollo
MOID0.000908 AU
Observations Used530
Radar Obs Used2
Oppositions4
Arc Total1998-2024
First Observation Used1998-09-23
Last Observation Used2024-08-17
Observations (594)
Date Type RA Dec Mag Band Observatory
2021-09-12 10:53:22 C 23 19 39.46 +23 25 07.8 V T08
2021-09-13 06:13:50 C 23 18 06.32 +23 08 48.6 V 703
2021-09-13 06:21:28 C 23 18 05.68 +23 08 41.1 V 703
2021-09-13 06:36:45 C 23 18 04.32 +23 08 28.8 V 703
2021-09-14 15:12:32 C 23 15 21.27 +22 38 47.4 V D29
2021-09-14 15:32:54 C 23 15 19.43 +22 38 28.0 V D29
2021-09-16 05:31:25 C 23 12 02.01 +22 00 05.1 V 703
2021-09-16 05:39:00 C 23 12 01.36 +21 59 57.5 V 703
2021-09-16 05:46:35 C 23 12 00.62 +21 59 49.5 V 703
2021-09-17 05:50:41 C 23 09 51.03 +21 33 18.0 V G96
2021-09-17 05:58:19 C 23 09 50.28 +21 33 09.2 V G96
2021-09-17 06:05:57 C 23 09 49.55 +21 33 00.7 V G96
2021-09-17 06:13:35 C 23 09 48.82 +21 32 52.1 V G96
2021-09-23 21:31:31 C 22 54 21.23 +17 51 14.2 V 160
2021-09-23 21:34:34 C 22 54 20.91 +17 51 09.5 V 160
2021-09-23 21:37:36 C 22 54 20.54 +17 51 05.0 V 160
2021-09-24 23:07:33 C 22 51 42.55 +17 07 45.5 V Z80
2021-09-24 23:14:13 C 22 51 41.81 +17 07 34.3 V Z80
2021-09-24 23:20:53 C 22 51 41.16 +17 07 22.8 V Z80
2021-09-26 00:28:22 C 22 49 05.37 +16 22 38.6 V W46
2021-09-26 00:53:54 C 22 49 02.58 +16 21 52.1 V W46
2021-09-26 01:34:32 C 22 48 58.10 +16 20 38.5 V W46
2021-09-26 14:32:00 C 22 47 35.46 +15 56 39.8 V D29
2021-09-26 14:52:22 C 22 47 33.17 +15 56 01.6 V D29
2021-09-26 15:12:43 C 22 47 30.88 +15 55 23.4 V D29
2021-09-28 08:49:23 C 22 43 06.26 +14 34 23.6 V T08
2021-09-28 09:02:05 C 22 43 04.79 +14 33 58.5 V T08
2021-09-28 09:06:51 C 22 43 04.21 +14 33 48.5 V T08
2021-09-28 09:21:33 C 22 43 02.54 +14 33 18.3 V T08
2021-09-29 00:17:58 C 22 41 28.38 +14 02 33.5 X W34
2021-09-29 00:26:47 C 22 41 27.39 +14 02 15.3 X W34
2021-09-29 00:38:07 C 22 41 26.13 +14 01 51.9 X W34
2021-09-30 09:46:58 C 22 37 51.00 +12 51 24.4 V T05
2021-09-30 10:22:18 C 22 37 46.94 +12 50 06.9 V T05
2021-09-30 10:27:39 C 22 37 46.32 +12 49 54.9 V T05
2021-09-30 10:39:41 C 22 37 44.95 +12 49 28.6 V T05
2021-10-02 18:49:52 C 22 31 44.16 +10 41 11.2 o K88
2021-10-02 18:52:43 C 22 31 43.86 +10 41 04.5 o K88
2021-10-02 18:55:33 C 22 31 43.52 +10 40 57.8 o K88
2021-10-02 19:01:44 C 22 31 42.96 +10 40 41.8 V K74
2021-10-02 19:18:58 C 22 31 41.05 +10 40 00.9 V K74
2021-10-02 19:25:26 C 22 31 40.31 +10 39 45.8 V K74
2021-10-02 23:01:14 C 22 31 15.85 +10 31 15.6 V L63
2021-10-02 23:16:05 C 22 31 14.17 +10 30 39.8 V L63
2021-10-02 23:31:26 C 22 31 12.43 +10 30 02.8 V L63
2021-10-03 03:53:19 C 22 30 45.79 +10 19 42.9 V 703
2021-10-03 04:00:51 C 22 30 44.96 +10 19 24.3 V 703
2021-10-03 04:08:23 C 22 30 44.02 +10 19 06.8 V 703
2021-10-03 04:15:57 C 22 30 43.31 +10 18 48.2 V 703
2021-10-06 05:43:11 C 22 22 54.338 +07 14 34.38 U F51
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2011-10-12 07:30:00 122033.7481 0.3 Hz 2380 -1 -1
2011-10-12 08:24:00 135746785.83 0.5 us 2380 -1 -1
2011-10-12 08:24:00 119882.9307 0.1 Hz 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)