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
2021-10-25 03:13:36 C 21 41 47.85 -15 16 08.3 V 703
2021-10-26 06:51:14 C 21 39 48.32 -16 41 28.3 V T05
2021-10-26 06:55:51 C 21 39 47.91 -16 41 42.4 V T05
2021-10-26 07:03:47 C 21 39 47.31 -16 42 06.2 V T05
2021-10-26 07:18:58 C 21 39 46.05 -16 42 52.7 V T05
2021-10-29 02:39:01 C 21 35 10.26 -20 09 29.3 V 703
2021-10-29 02:46:49 C 21 35 09.60 -20 09 52.6 V 703
2021-10-29 02:54:38 C 21 35 09.05 -20 10 16.5 V 703
2021-10-29 03:02:26 C 21 35 08.41 -20 10 39.5 V 703
2021-10-29 05:10:16 C 21 35 00.513 -20 17 04.37 U F52
2021-10-29 05:24:06 C 21 34 59.454 -20 17 46.60 U F52
2021-10-29 05:37:57 C 21 34 58.382 -20 18 28.53 U F52
2021-10-30 03:39:25 C 21 33 31.25 -21 25 24.7 V G96
2021-10-30 03:46:37 C 21 33 30.73 -21 25 46.2 V G96
2021-10-30 03:53:49 C 21 33 30.19 -21 26 07.9 V G96
2021-10-30 04:01:02 C 21 33 29.66 -21 26 29.7 V G96
2021-10-30 07:26:48 C 21 33 16.01 -21 36 46.8 V T05
2021-10-30 07:32:44 C 21 33 15.56 -21 37 03.1 V T05
2021-10-30 07:43:58 C 21 33 14.75 -21 37 37.8 V T05
2021-10-30 07:59:13 C 21 33 13.60 -21 38 24.3 V T05
2021-11-01 02:59:48 C 21 30 30.83 -23 47 53.5 V 703
2021-11-01 03:07:33 C 21 30 30.34 -23 48 17.0 V 703
2021-11-01 03:15:18 C 21 30 29.79 -23 48 38.4 V 703
2021-11-01 03:23:03 C 21 30 29.25 -23 49 02.3 V 703
2021-11-04 02:09:25 C 21 26 10.62 -27 18 37.3 V 703
2021-11-04 02:17:39 C 21 26 09.96 -27 19 02.2 V 703
2021-11-04 02:25:54 C 21 26 09.39 -27 19 26.0 V 703
2021-11-04 02:34:08 C 21 26 08.78 -27 19 50.9 V 703
2021-11-05 06:07:43 C 21 24 29.73 -28 40 12.4 V T08
2021-11-05 06:12:22 C 21 24 29.42 -28 40 26.2 V T08
2021-11-05 06:21:00 C 21 24 28.79 -28 40 50.7 V T08
2021-11-05 06:36:16 C 21 24 27.74 -28 41 35.3 V T08
2022-06-08 08:35:08 C 17 31 04.248 +13 10 06.80 U F52
2022-06-08 09:06:16 C 17 31 01.310 +13 10 11.85 U F52
2022-06-08 09:21:47 C 17 30 59.849 +13 10 14.30 U F52
2022-06-24 14:11:38 C 16 59 41.02 +12 38 16.1 V D29
2022-06-24 14:32:00 C 16 59 39.60 +12 38 09.6 V D29
2022-08-18 06:39:28 C 16 44 41.352 +01 06 06.79 U F51
2022-08-18 06:57:59 C 16 44 41.908 +01 05 56.30 U F51
2022-08-18 07:16:40 C 16 44 42.475 +01 05 46.65 U F51
2024-08-17 14:28:25 C 03 38 58.972 +25 59 24.18 X F51
2024-08-17 14:33:38 C 03 38 59.943 +25 59 24.36 X F51
2024-08-17 14:38:52 C 03 39 00.904 +25 59 24.35 X F51
2024-08-17 14:44:02 C 03 39 01.881 +25 59 24.84 X 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)