2019 XR1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6158289706 ± 8.61e-07
Semi-major axis (a)2.3521049623 AU ± 5.23e-06
Inclination (i)1.94172066° ± 2.03e-05
Long. of Asc. Node (Ω)258.17113918° ± 4.27e-05
Arg. of Perihelion (ω)135.57898597° ± 6.33e-05
Mean Anomaly (M)242.92555815° ± 2.02e-03
Mean Motion (n)0.2732292745°/day ± 9.11e-07
Perihelion dist (q)0.90361058 AU ± 2.85e-06
Aphelion dist (Q)3.80059934 AU ± 8.68e-06
Orbital Period3.60732314 yr ± 1.20e-05
Physical Parameters
H (abs. magnitude)26.10
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.510″
Uncertainty1
Orbit TypeApollo
MOID0.003289 AU
Observations Used81
Radar Obs Used3
Oppositions1
Arc Total2019-2019
First Observation Used2019-12-05
Last Observation Used2019-12-20
Observations (81)
Date Type RA Dec Mag Band Observatory
2019-12-06 04:06:36 C 07 22 48.68 +38 48 16.4 V 204
2019-12-06 04:09:06 C 07 24 12.89 +38 47 10.8 V W34
2019-12-06 04:18:15 C 07 24 04.30 +38 41 37.1 V W34
2019-12-06 05:01:32 C 07 21 56.59 +38 12 31.5 V L01
2019-12-06 05:07:55 C 07 21 51.40 +38 08 29.6 V L01
2019-12-06 05:08:08 C 07 21 51.21 +38 08 21.4 V L01
2019-12-06 05:08:20 C 07 21 51.02 +38 08 13.7 V L01
2019-12-06 10:22:50 C 07 19 21.66 +35 26 32.2 V I52
2019-12-07 00:22:38 C 07 14 51.57 +30 31 45.7 V B49
2019-12-07 00:28:04 C 07 14 49.46 +30 30 23.2 V B49
2019-12-07 00:33:32 C 07 14 47.37 +30 29 02.0 V B49
2019-12-07 09:27:50 C 07 12 33.78 +28 31 50.2 q H45
2019-12-07 09:30:25 C 07 12 32.98 +28 31 20.1 q H45
2019-12-07 09:31:02 C 07 12 32.72 +28 31 13.9 q H45
2019-12-07 09:32:15 C 07 12 32.36 +28 30 59.5 q H45
2019-12-07 09:33:01 C 07 12 32.10 +28 30 49.8 q H45
2019-12-07 09:34:28 C 07 12 31.72 +28 30 32.9 q H45
2019-12-07 09:35:32 C 07 12 31.40 +28 30 20.2 q H45
2019-12-07 09:36:44 C 07 12 31.03 +28 30 06.8 q H45
2019-12-07 09:49:07 C 07 12 37.16 +28 28 21.9 o 691
2019-12-07 09:57:24 C 07 12 34.54 +28 26 47.8 o 691
2019-12-07 10:15:17 C 07 12 28.53 +28 23 19.8 V G96
2019-12-07 10:22:09 C 07 12 26.42 +28 22 02.3 V I52
2019-12-07 10:22:48 C 07 12 26.22 +28 21 55.3 V G96
2019-12-07 10:25:54 C 07 12 25.28 +28 21 20.3 V I52
2019-12-07 10:26:05 C 07 12 25.20 +28 21 18.1 V I52
2019-12-07 10:30:20 C 07 12 23.91 +28 20 30.3 V G96
2019-12-20 06:20:36 C 07 01 41.08 +18 48 20.6 V V06
2019-12-20 06:27:26 C 07 01 40.82 +18 48 19.3 V V06
2019-12-20 06:34:17 C 07 01 40.59 +18 48 17.6 V V06
2019-12-20 06:41:07 C 07 01 40.32 +18 48 16.3 V V06
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2019-12-08 06:14:00 -182103.5604 0.4 Hz 2380 -1 -1
2019-12-08 06:34:00 22985855.64 4 us 2380 -1 -1
2019-12-08 06:57:00 23091971.78 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)