Asteroids

2022DS4 help

Last update: 2026-03-17 23:26 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.884

Aphelion (Q)

2.997

Eccentricity (e)

0.544

Inclination (i)

1.1

deg

Orbit period (P)

987.5

Earth MOID

0.01144

U parameter

7.6

Next Earth close approach

Date

2040-11-17

Nominal distance (from Earth center)

0.09188

13744922

Maximum Brightness

22.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

26 - 60*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-02-28

Observatory

ATLAS-HKO, 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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.940703

1-sigma variation

0.001401

Unit

Eccentricity (e)

Value

0.544427

1-sigma variation

0.000358

Unit

Inclination (i)

Value

1.1458

1-sigma variation

0.0007

Unit

Long. of Ascending Node (Ω)

Value

30.5079

1-sigma variation

0.0034

Unit

Arg. of Perihelion (ω)

Value

80.4976

1-sigma variation

0.0032

Unit

Mean Anomaly (M)

Value

222.51162

1-sigma variation

0.63729

Unit

Perihelion distance

Value

0.884132

1-sigma variation

Unit

Aphelion distance

Value

2.997274

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.259362

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.493211

1-sigma variation

Unit

MOID

Value

0.011441

1-sigma variation

Unit

Orbit Period

Value

987.4996

1-sigma variation

Unit

U parameter

Value

7.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.96364E-6	5.01068E-7	9.45583E-7	-4.57278E-6	4.21899E-6	-8.93035E-4
e	5.01068E-7	1.27859E-7	2.41286E-7	-1.16680E-6	1.07650E-6	-2.27878E-4
i	9.45583E-7	2.41286E-7	4.55683E-7	-2.21943E-6	2.04927E-6	-4.30038E-4
Ω	-4.57278E-6	-1.16680E-6	-2.21943E-6	1.15586E-5	-1.07488E-5	2.07964E-3
ω	4.21899E-6	1.07650E-6	2.04927E-6	-1.07488E-5	1.00080E-5	-1.91874E-3
M	-8.93035E-4	-2.27878E-4	-4.30038E-4	2.07964E-3	-1.91874E-3	4.06140E-1

Date of computation: 2026-03-17 23:26 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

25.013

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

26 - 60*

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

1487

Unit

Source

[1]

Normalized RMS of residuals

Value

0.430245

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-02-26.239966

Unit

Source

[2]

Last Observation

Value

2022-03-14.3816

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

99 (3)

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

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 2022DS4 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	1959-11-25 05:19	> 1 mo	0.0170349	0.0099185	0.2169962
MARS	1971-02-07 00:55	> 1 w	0.0314565	0.0135989	0.1268935
EARTH	1986-11-18 11:14	> 1 w	0.0836122	0.0100717	0.0823101
EARTH	1995-03-06 18:56	> 1 w	0.0831817	0.0161105	0.1509942
EARTH	2013-11-09 17:59	> 1 d	0.1968255	0.0295597	0.0561081
EARTH	2022-02-26 08:25	< 1 s	0.0164071	0.0163771	0.0000100
MARS	2033-03-07 18:55	> 1 d	0.0300835	0.0150315	0.0489265
EARTH	2040-11-17 16:48	> 1 w	0.0918791	0.0110572	0.1156250
EARTH	2049-03-12 17:03	> 1 d	0.1517548	0.0152547	0.0871446
EARTH	2067-12-02 18:55	> 1 d	0.0280197	0.0116038	0.0073642
MARS	2076-06-07 13:50	> 1 d	0.0255116	0.0153385	0.0161872
EARTH	2095-03-08 00:15	> 1 d	0.0784757	0.0148670	0.0457269
EARTH	2114-01-26 21:56	> 1 w	0.0936718	0.0722699	0.0071666

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
334.46600333	324.96642310	0.01144267	MINIMUM
26.05679794	55.03392939	0.01593046	MINIMUM
0.35329759	10.14462430	0.10138816	SADDLE
0.31006150	190.05994166	1.90191871	SADDLE
180.09114056	189.79513482	1.97968566	SADDLE
180.08382016	9.78920606	3.98094317	MAXIMUM

Download:

MOID Plots

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