Asteroids

2022AD4 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.757

Aphelion (Q)

1.011

Eccentricity (e)

0.144

Inclination (i)

9.1

deg

Orbit period (P)

303.4

Earth MOID

0.00723

U parameter

6.0

Next Earth close approach

Date

2027-01-16

Nominal distance (from Earth center)

0.09257

13847746

Maximum Brightness

25.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.4

mag

Diameter

9 - 20*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-01-09

Observatory

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.883648

1-sigma variation

0.000020

Unit

Eccentricity (e)

Value

0.143880

1-sigma variation

0.000035

Unit

Inclination (i)

Value

9.0946

1-sigma variation

0.0028

Unit

Long. of Ascending Node (Ω)

Value

109.5803

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

152.3930

1-sigma variation

0.0002

Unit

Mean Anomaly (M)

Value

90.18921

1-sigma variation

0.06011

Unit

Perihelion distance

Value

0.756509

1-sigma variation

Unit

Aphelion distance

Value

1.010787

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.008117

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.250490

1-sigma variation

Unit

MOID

Value

0.007227

1-sigma variation

Unit

Orbit Period

Value

303.4015

1-sigma variation

Unit

U parameter

Value

6.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.12792E-10	-7.15685E-10	-5.59441E-8	-2.89094E-9	1.60267E-9	-1.22119E-6
e	-7.15685E-10	1.24093E-9	9.69957E-8	5.01255E-9	-2.82635E-9	2.11732E-6
i	-5.59441E-8	9.69957E-8	7.58409E-6	3.91887E-7	-2.17213E-7	1.65503E-4
Ω	-2.89094E-9	5.01255E-9	3.91887E-7	2.02539E-8	-1.13688E-8	8.55265E-6
ω	1.60267E-9	-2.82635E-9	-2.17213E-7	-1.13688E-8	3.00598E-8	-4.77464E-6
M	-1.22119E-6	2.11732E-6	1.65503E-4	8.55265E-6	-4.77464E-6	3.61277E-3

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

27.378

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

9 - 20*

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

1385

Unit

Source

[1]

Normalized RMS of residuals

Value

0.645782

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-01-09.298858

Unit

Source

[2]

Last Observation

Value

2022-01-13.027241

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

49 (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 2022AD4 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	1968-01-17 08:18	93.5	0.1621807	0.1376909	0.0081769
EARTH	1973-01-16 04:28	159.6	0.0751921	0.0608087	0.0048140
EARTH	1977-09-07 06:23	902.9	0.1975769	0.1964624	0.0003818
EARTH	1978-01-13 03:42	141.4	0.0156794	0.0127823	0.0009901
VENUS	1981-09-24 17:49	21.2	0.0481717	0.0480343	0.0000560
EARTH	1983-01-17 06:29	6.1	0.1029034	0.1020672	0.0002787
EARTH	2011-12-09 20:37	242.1	0.1375603	0.1347631	0.0009373
EARTH	2017-01-03 13:02	241.0	0.0496095	0.0469926	0.0008745
EARTH	2021-09-15 01:49	19.9	0.1965254	0.1963767	0.0000496
EARTH	2022-01-11 12:28	< 1 s	0.0074709	0.0074649	0.0000020
EARTH	2027-01-16 21:32	21.9	0.0925665	0.0895154	0.0010175
VENUS	2050-08-19 17:14	30.1	0.0460398	0.0453050	0.0003293
EARTH	2055-12-01 08:34	459.1	0.1564972	0.1503678	0.0020762
EARTH	2060-12-23 20:31	1172.5	0.0876256	0.0784434	0.0031119
EARTH	2066-01-07 19:46	928.9	0.0259059	0.0152205	0.0038170
EARTH	2071-01-06 22:24	884.3	0.0324083	0.0228373	0.0033292
EARTH	2075-12-23 08:44	> 1 d	0.0920493	0.0767727	0.0052660
EARTH	2080-11-27 16:47	1325.7	0.1635152	0.1443672	0.0067531
EARTH	2107-01-18 08:55	169.8	0.1006871	0.0898450	0.0036197
EARTH	2111-09-09 23:27	1092.8	0.1981896	0.1975316	0.0002280
EARTH	2112-01-13 05:26	178.2	0.0121209	0.0113068	0.0005386
EARTH	2117-01-13 18:25	> 1 d	0.0223238	0.0113866	0.0164915
EARTH	2122-01-18 04:49	112.8	0.1339247	0.0976651	0.0121647

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
213.06157715	8.38460159	0.00720828	MINIMUM
344.91854229	141.92926129	0.27040826	SADDLE
0.55258514	340.25540701	1.74001411	SADDLE
183.69011799	163.46961463	2.02506744	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out