Asteroids

2019XQ1 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.714

Aphelion (Q)

1.277

Eccentricity (e)

0.283

Inclination (i)

8.5

deg

Orbit period (P)

362.9

Earth MOID

0.03458

U parameter

7.7

Next Earth close approach

Date

2025-12-10

Nominal distance (from Earth center)

0.12307

18410802

Maximum Brightness

23.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.3

mag

Diameter

24 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2019-12-04

Observatory

Pan-STARRS 2, Haleakala

ORBIT VISUALISATION TOOLS

External links

Proper elements

Epoch

Near present day

Near middle of observation arc

Orbit properties

Epoch
Semimajor Axis
Eccentricity (e)
Inclination (i)
Long. of Ascending Node (Ω)
Arg. of Perihelion (ω)
Mean Anomaly (M)
Perihelion distance
Aphelion distance
Asc. Node-Earth Sep.
Desc. Node-Earth Sep.
MOID
Orbit Period
U parameter

Value

1-sigma variation

Unit

Epoch

Value

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.995779

1-sigma variation

0.000312

Unit

Eccentricity (e)

Value

0.282530

1-sigma variation

0.000782

Unit

Inclination (i)

Value

8.4773

1-sigma variation

0.0218

Unit

Long. of Ascending Node (Ω)

Value

69.0586

1-sigma variation

0.0152

Unit

Arg. of Perihelion (ω)

Value

119.4258

1-sigma variation

0.0051

Unit

Mean Anomaly (M)

Value

270.12147

1-sigma variation

0.89778

Unit

Perihelion distance

Value

0.714441

1-sigma variation

Unit

Aphelion distance

Value

1.277116

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.077956

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.210857

1-sigma variation

Unit

MOID

Value

0.034577

1-sigma variation

Unit

Orbit Period

Value

362.9465

1-sigma variation

Unit

U parameter

Value

7.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.75021E-8	2.43697E-7	6.76991E-6	-4.74097E-6	-1.36714E-6	-2.80333E-4
e	2.43697E-7	6.11230E-7	1.70114E-5	-1.18462E-5	-3.29289E-6	-7.00528E-4
i	6.76991E-6	1.70114E-5	4.73916E-4	-3.29035E-4	-8.96467E-5	-1.94587E-2
Ω	-4.74097E-6	-1.18462E-5	-3.29035E-4	2.30533E-4	6.66769E-5	1.36312E-2
ω	-1.36714E-6	-3.29289E-6	-8.96467E-5	6.66769E-5	2.63989E-5	3.93875E-3
M	-2.80333E-4	-7.00528E-4	-1.94587E-2	1.36312E-2	3.93875E-3	8.06009E-1

Date of computation: 2025-09-10 00:30 UTC

Note: The ASCII file is in a format suitable for Orbfit input.

Download ASCII file:

Physical properties

Rotation Period
Quality
Amplitude
Rotation Direction
Spinvector L
Spinvector B

Rotational properties

Value

Unit

Source

Rotation Period

Value

Unit

Source

[-]

Quality

Value

Unit

Source

[-]

Amplitude

Value

Unit

mag

Source

[-]

Rotation Direction

Value

Unit

Source

[-]

Spinvector L

Value

Unit

Source

[-]

Spinvector B

Value

Unit

Source

[-]

Taxonomy
Taxonomy (all)

Taxonomy

Value

Unit

Source

Taxonomy

Value

Unit

Source

[-]

Taxonomy (all)

Value

Unit

Source

[-]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

25.266

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

24 - 50*

Unit

Source

[2]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

Unit

mag

Source

[-]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Unit

Source

[-]

Download this part as:

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

Source

[1]

Unobserved

Value

2155

Unit

Source

[1]

Normalized RMS of residuals

Value

0.665149

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2019-12-04.457704

Unit

Source

[2]

Last Observation

Value

2019-12-14.17939

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

31 (0)

Unit

Source

[1]

Radar Summary

First Observation
Last Observation
Delay (Discarded)
Doppler (Discarded)
Total Optical Observations (Discarded)

Radar

Value

Unit

Source

First Observation

Value

Unit

Source

[-]

Last Observation

Value

Unit

Source

[-]

Delay (Discarded)

Value

0 (0)

Unit

Source

[-]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[-]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[-]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

* - these fields are required

Close Approaches for 2019XQ1 from 1950 to 2125

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1984-07-22 02:45	669.7	0.1716517	0.1499424	0.0077180
EARTH	1985-07-20 03:28	842.8	0.1443152	0.1251212	0.0073885
EARTH	1986-07-18 03:09	1063.7	0.1231176	0.1108457	0.0059173
EARTH	1987-07-15 23:34	1359.1	0.1102487	0.1076438	0.0030206
EARTH	1988-07-12 13:06	> 1 d	0.1067979	0.1064369	0.0011129
EARTH	1989-07-10 07:11	> 1 d	0.1107283	0.1060282	0.0046082
EARTH	1990-07-07 11:45	> 1 d	0.1197100	0.1066627	0.0076551
EARTH	1991-07-03 20:03	> 1 d	0.1328113	0.1112620	0.0101292
EARTH	1992-06-28 00:22	> 1 d	0.1487671	0.1209003	0.0118375
EARTH	1993-06-22 01:34	> 1 d	0.1658619	0.1345009	0.0126638
EARTH	1994-06-15 14:32	> 1 d	0.1828196	0.1504098	0.0127323
EARTH	1995-06-09 03:25	> 1 w	0.1990468	0.1670932	0.0123501
EARTH	2014-11-23 12:02	> 1 d	0.1975599	0.1809456	0.0056101
EARTH	2015-11-29 21:17	> 1 d	0.1732571	0.1577617	0.0052204
EARTH	2016-12-04 16:27	> 1 d	0.1466847	0.1335986	0.0044007
EARTH	2017-12-09 12:05	629.2	0.1184940	0.1091713	0.0031318
EARTH	2018-12-12 07:37	174.0	0.0908874	0.0863958	0.0015082
EARTH	2019-12-13 19:09	< 1 min	0.0661765	0.0656291	0.0001825
EARTH	2020-12-13 08:26	20.7	0.0469876	0.0428688	0.0014456
EARTH	2021-12-13 13:49	26.4	0.0360823	0.0342310	0.0012551
EARTH	2022-12-13 10:52	138.0	0.0372687	0.0348121	0.0024875
EARTH	2023-12-13 03:33	327.4	0.0555575	0.0364838	0.0085888
EARTH	2024-12-11 11:29	542.6	0.0861307	0.0494847	0.0133563
EARTH	2025-12-10 12:28	723.4	0.1230686	0.0741732	0.0168244
EARTH	2026-12-09 08:59	862.7	0.1634604	0.1055444	0.0195769
VENUS	2052-12-22 14:29	> 1 w	0.0299975	0.0297673	0.0058984
VENUS	2065-11-10 15:14	> 1 mo	0.0481366	0.0091771	0.2205168
VENUS	2096-08-28 15:06	> 1 mo	0.0320428	0.0291550	0.2642002
VENUS	2109-07-16 02:37	> 1 mo	0.0495820	0.0033076	1.1905259

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
269.22516801	339.30546101	0.03458287	MINIMUM
85.57206682	188.19789951	0.10613835	MINIMUM
358.35983311	83.01281684	0.30433752	SADDLE
176.27780526	264.46313056	0.31293711	SADDLE
3.31668044	269.66402220	1.71161160	SADDLE
183.34446135	89.78188938	2.27192449	MAXIMUM

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MOID Plots

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