Asteroids

2022AF1 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.880

Aphelion (Q)

3.527

Eccentricity (e)

0.601

Inclination (i)

6.7

deg

Orbit period (P)

1194.6

Earth MOID

0.01028

U parameter

8.4

Next Earth close approach

Date

2035-04-25

Nominal distance (from Earth center)

0.18029

26970880

Maximum Brightness

23.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.7

mag

Diameter

30 - 70*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-01-06

Observatory

Mt. Lemmon 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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

2.203311

1-sigma variation

0.006543

Unit

Eccentricity (e)

Value

0.600791

1-sigma variation

0.001276

Unit

Inclination (i)

Value

6.6881

1-sigma variation

0.0113

Unit

Long. of Ascending Node (Ω)

Value

102.9831

1-sigma variation

0.0039

Unit

Arg. of Perihelion (ω)

Value

49.6027

1-sigma variation

0.0088

Unit

Mean Anomaly (M)

Value

55.79054

1-sigma variation

1.85057

Unit

Perihelion distance

Value

0.879582

1-sigma variation

Unit

Aphelion distance

Value

3.527040

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.030030

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.286914

1-sigma variation

Unit

MOID

Value

0.010283

1-sigma variation

Unit

Orbit Period

Value

1194.5714

1-sigma variation

Unit

U parameter

Value

8.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.28139E-5	8.35088E-6	7.42126E-5	-2.53612E-5	5.77844E-5	-1.21087E-2
e	8.35088E-6	1.62884E-6	1.44753E-5	-4.94671E-6	1.12710E-5	-2.36182E-3
i	7.42126E-5	1.44753E-5	1.28644E-4	-4.39605E-5	1.00180E-4	-2.09890E-2
Ω	-2.53612E-5	-4.94671E-6	-4.39605E-5	1.50231E-5	-3.42305E-5	7.17271E-3
ω	5.77844E-5	1.12710E-5	1.00180E-4	-3.42305E-5	7.80569E-5	-1.63427E-2
M	-1.21087E-2	-2.36182E-3	-2.09890E-2	7.17271E-3	-1.63427E-2	3.42463E0

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

24.668

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

30 - 70*

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

1341

Unit

Source

[1]

Normalized RMS of residuals

Value

0.563431

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-01-06.180542

Unit

Source

[2]

Last Observation

Value

2022-01-12.090877

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

48 (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 2022AF1 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	1960-01-24 17:02	> 1 mo	0.0831300	0.0046855	0.9029012
EARTH	1973-03-08 20:24	> 1 mo	0.1454042	0.1426606	0.0875985
EARTH	2022-01-12 03:22	< 1 min	0.0296466	0.0294764	0.0000567
EARTH	2035-04-25 23:40	> 1 w	0.1802892	0.1151960	0.2852338
EARTH	2057-12-24 15:23	> 1 mo	0.1714573	0.0047043	0.9118143
EARTH	2071-02-27 16:17	> 1 mo	0.1396737	0.1314484	0.0738111
EARTH	2107-01-14 04:32	> 1 mo	0.0276928	0.0187405	0.2862336

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
336.71342854	5.38283250	0.01027239	MINIMUM
24.61613615	96.65637570	0.11594521	MINIMUM
5.68824958	60.62166044	0.14267396	SADDLE
1.39927320	232.10395341	1.88778165	SADDLE
180.47910128	230.59734074	2.52203151	SADDLE
180.15677491	50.43141834	4.51315375	MAXIMUM

Download:

MOID Plots

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