2018 XJ1 — IAA Minor Planet Database

Orbital Elements

Epoch (TDB)	2025-11-21 (JD 2461000.5)
Eccentricity (e)	0.4306765000
Semi-major axis (a)	1.7525055000 AU
Inclination (i)	5.48688000°
Long. of Asc. Node (Ω)	83.98855000°
Arg. of Perihelion (ω)	359.97187000°
Mean Anomaly (M)	355.34515000°
Mean Motion (n)	0.4248298300°/day
Perihelion dist (q)	0.99774260 AU
Aphelion dist (Q)	2.50726840 AU
Orbital Period	2.32000590 yr

Physical Parameters

H (abs. magnitude)	26.40
G (slope)	0.15

Orbit Solution

Source	MPC
Solution Date	—
RMS Residual	0.350″
Uncertainty	5
Orbit Type	Apollo
MOID	0.012844 AU
Observations Used	44
Radar Obs Used	1
Oppositions	1
Arc Total	—
First Observation Used	—
Last Observation Used	2018-12-19

Observations (44)

Date	Type	RA	Dec	Mag	Band	Observatory
2018-12-09 06:42:33	C	03 54 03.49	-19 05 51.7	–	V	703
2018-12-09 06:57:37	C	03 54 18.96	-19 03 54.7	–	V	703
2018-12-09 07:05:09	C	03 54 26.83	-19 02 54.9	–	V	703
2018-12-09 07:41:31	C	03 55 04.63	-18 58 06.6	–	V	I52
2018-12-09 07:42:34	C	03 55 05.74	-18 57 57.8	–	V	I52
2018-12-09 07:43:37	C	03 55 06.82	-18 57 49.9	–	V	I52
2018-12-09 07:44:40	C	03 55 07.94	-18 57 41.2	–	V	I52
2018-12-09 07:46:26	C	03 55 08.59	-18 57 31.0	–	V	H01
2018-12-09 07:54:04	C	03 55 16.61	-18 56 29.7	–	V	H01
2018-12-09 08:11:28	C	03 55 35.07	-18 54 08.5	–	V	H01
2018-12-09 08:17:24	C	03 55 41.38	-18 53 20.0	–	V	H01
2018-12-09 08:33:34	C	03 55 59.67	-18 51 04.5	–	V	I52
2018-12-09 08:34:37	C	03 56 00.81	-18 50 55.8	–	V	I52
2018-12-09 08:35:40	C	03 56 01.92	-18 50 47.1	–	V	I52
2018-12-09 08:36:43	C	03 56 03.03	-18 50 38.8	–	V	I52
2018-12-09 22:06:17	C	04 12 56.83	-16 54 19.7	–	V	L01
2018-12-09 22:06:42	C	04 12 57.35	-16 54 15.5	–	V	L01
2018-12-09 22:09:07	C	04 13 00.28	-16 53 53.0	–	V	L01
2018-12-09 22:09:42	C	04 13 00.92	-16 53 47.2	–	V	L01
2018-12-10 03:25:57	C	04 20 25.52	-15 59 47.4	–	V	I52
2018-12-10 03:26:14	C	04 20 25.83	-15 59 44.1	–	V	I52
2018-12-10 03:26:29	C	04 20 26.25	-15 59 42.7	–	V	I52
2018-12-10 03:26:45	C	04 20 26.53	-15 59 39.1	–	V	I52
2018-12-10 22:05:09	C	04 47 50.46	-12 22 58.0	–	V	104
2018-12-10 22:11:06	C	04 47 59.32	-12 21 40.5	18.9	V	104
2018-12-10 22:14:30	C	04 48 04.39	-12 20 55.9	19.1	V	104
2018-12-10 23:17:04	C	04 49 38.76	-12 07 16.2	–	V	587
2018-12-10 23:17:28	C	04 49 39.34	-12 07 11.0	–	V	587
2018-12-10 23:23:18	C	04 49 48.10	-12 05 51.9	–	V	587
2018-12-12 04:34:06	C	05 42 14.37	-04 27 51.1	–	V	I52
2018-12-12 04:34:17	C	05 42 14.72	-04 27 48.2	–	V	I52
2018-12-12 04:34:28	C	05 42 15.06	-04 27 45.1	–	V	I52
2018-12-12 04:34:39	C	05 42 15.38	-04 27 41.8	–	V	I52
2018-12-14 01:08:37	C	07 12 36.52	+09 20 58.8	–	V	J95
2018-12-14 01:12:29	C	07 12 43.96	+09 22 07.4	–	V	J95
2018-12-14 01:17:13	C	07 12 53.06	+09 23 31.8	–	V	J95
2018-12-14 01:21:01	C	07 13 00.40	+09 24 39.6	–	V	J95
2018-12-15 03:52:44	C	08 04 00.17	+16 26 18.2	–	V	204
2018-12-15 03:59:26	C	08 04 11.62	+16 27 48.3	–	V	204
2018-12-15 04:06:12	C	08 04 23.19	+16 29 18.9	–	V	204
2018-12-19 09:46:46	C	10 10 25.51	+28 24 45.0	–	V	I52
2018-12-19 09:48:10	C	10 10 26.43	+28 24 49.8	–	V	I52
2018-12-19 09:49:33	C	10 10 27.38	+28 24 53.7	–	V	I52
2018-12-19 09:50:57	C	10 10 28.37	+28 24 58.5	–	V	I52