Asteroids

2019XF2 help

Last update: 2026-07-30 14:25 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.833

Aphelion (Q)

1.383

Eccentricity (e)

0.248

Inclination (i)

13.7

deg

Orbit period (P)

426.1

Earth MOID

0.00285

U parameter

7.3

Next Earth close approach

Date

2026-12-04

Nominal distance (from Earth center)

0.00743

1110904

Maximum Brightness

18.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.9

mag

Diameter

11 - 24*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2019-12-06

Observatory

University of Arizona Catalina Sky Survey

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.108095

1-sigma variation

0.000211

Unit

Eccentricity (e)

Value

0.248246

1-sigma variation

0.000228

Unit

Inclination (i)

Value

13.6664

1-sigma variation

0.0109

Unit

Long. of Ascending Node (Ω)

Value

252.3889

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

101.7017

1-sigma variation

0.0077

Unit

Mean Anomaly (M)

Value

260.86650

1-sigma variation

0.61641

Unit

Perihelion distance

Value

0.833016

1-sigma variation

Unit

Aphelion distance

Value

1.383175

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.080629

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.004066

1-sigma variation

Unit

MOID

Value

0.002849

1-sigma variation

Unit

Orbit Period

Value

426.0535

1-sigma variation

Unit

U parameter

Value

7.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.44158E-8	4.79419E-8	2.28926E-6	2.49260E-9	1.50576E-6	-1.29909E-4
e	4.79419E-8	5.20303E-8	2.47465E-6	4.92092E-9	1.57840E-6	-1.40215E-4
i	2.28926E-6	2.47465E-6	1.18061E-4	1.55516E-7	7.69973E-5	-6.69562E-3
Ω	2.49260E-9	4.92092E-9	1.55516E-7	1.82419E-8	-2.85271E-7	-7.23369E-6
ω	1.50576E-6	1.57840E-6	7.69973E-5	-2.85271E-7	5.88393E-5	-4.40533E-3
M	-1.29909E-4	-1.40215E-4	-6.69562E-3	-7.23369E-6	-4.40533E-3	3.79965E-1

Date of computation: 2026-07-30 14:25 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

26.932

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

11 - 24*

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

[-]

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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

2520

Unit

Source

[1]

Normalized RMS of residuals

Value

0.769033

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2019-12-06.21725

Unit

Source

[2]

Last Observation

Value

2019-12-07.28435

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

42 (7)

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

Filters

Initial Date: *

Final Date: *

Normalised Only accepted

Max residual (arcsec):

* - these fields are required

Plot

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

* - these fields are required

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2019XF2 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1954-12-03 16:08	> 1 d	0.0105105	0.0044512	0.0276249
EARTH	1975-06-11 18:58	764.1	0.0449550	0.0448820	0.0006285
EARTH	1983-12-09 01:07	> 1 d	0.0973031	0.0018776	0.0376335
EARTH	1990-11-27 18:51	> 1 d	0.1172017	0.0017921	0.0388221
EARTH	2004-06-12 11:56	284.1	0.1136603	0.0565594	0.0218651
EARTH	2011-06-08 20:07	664.4	0.1123119	0.0743029	0.0133422
EARTH	2019-12-04 15:57	< 1 min	0.0033678	0.0033600	0.0000026
EARTH	2026-12-04 01:16	931.2	0.0074259	0.0030671	0.0118444
EARTH	2040-06-12 04:03	> 1 w	0.0643928	0.0478208	0.4538897
EARTH	2048-12-08 02:48	> 1 mo	0.0899213	0.0013324	1.2030542
EARTH	2055-11-22 03:10	> 1 mo	0.1798993	0.0193906	1.1050930
EARTH	2069-06-10 06:03	> 1 w	0.0758133	0.0483441	0.5449441
EARTH	2077-12-03 07:14	> 1 w	0.0199468	0.0018572	0.2695417
EARTH	2091-06-06 17:22	> 1 mo	0.1725157	0.0466573	3.3654434
EARTH	2092-12-10 16:05	> 1 mo	0.1405548	0.0012778	3.9506432
EARTH	2106-06-12 16:57	> 1 mo	0.0477967	0.0476365	0.3864408
EARTH	2114-11-29 06:29	> 1 mo	0.1143592	0.0033547	13.1354051
EARTH	2121-06-13 01:50	> 1 mo	0.1299460	0.0507063	14.6454886

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
64.12245462	328.02261033	0.00284878	MINIMUM
282.12638509	156.75416713	0.05285944	MINIMUM
352.10180482	240.59259104	0.27845068	SADDLE
174.12582832	64.68929089	0.47706287	SADDLE
355.18332291	64.69452436	1.81402770	SADDLE
178.40206500	248.07717993	2.37326201	MAXIMUM

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MOID Plots

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