Asteroids

2022SR4

Last update: 2023-09-29 23:50 UTC

Orbital Properties

Epoch

60200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.734

Aphelion (Q)

1.398

Eccentricity (e)

0.312

Inclination (i)

10.9

deg

Orbit period (P)

402.1

Earth MOID

0.00329

U parameter

7.3

Next Earth close approach

Date

2033-09-29

Nominal distance (from Earth center)

0.03978

5950645

Maximum Brightness

21.4

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

25.7

mag

Diameter

26*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-09-19

Observatory

Mt. Lemmon Survey

Orbit Visualiser

Click the button to start Orbit Visualiser

External links

Proper elements

Epoch

Near present day

Near middle of observation arc

Orbit properties

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

Value

1-sigma variation

Unit

Epoch

Value

60200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.066089

1-sigma variation

0.000218

Unit

Eccentricity (e)

Value

0.311651

1-sigma variation

0.000272

Unit

Inclination (i)

Value

10.9229

1-sigma variation

0.0103

Unit

Ascending Node (Ω)

Value

183.3344

1-sigma variation

0.0011

Unit

Arg. of Perihelion (ω)

Value

278.4842

1-sigma variation

0.0093

Unit

Mean Anomaly (M)

Value

253.07683

1-sigma variation

0.05651

Unit

Perihelion

Value

0.733842

1-sigma variation

Unit

Aphelion

Value

1.398336

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.078167

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.006280

1-sigma variation

Unit

MOID

Value

0.003292

1-sigma variation

Unit

Orbit Period

Value

402.0579

1-sigma variation

Unit

U parameter

Value

7.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.73836E-8	5.92258E-8	2.24883E-6	2.49852E-7	-2.03162E-6	-1.23007E-5
e	5.92258E-8	7.40484E-8	2.81163E-6	3.12313E-7	-2.53738E-6	-1.53743E-5
i	2.24883E-6	2.81163E-6	1.06760E-4	1.18585E-5	-9.63461E-5	-5.83770E-4
Ω	2.49852E-7	3.12313E-7	1.18585E-5	1.31758E-6	-1.07111E-5	-6.48606E-5
ω	-2.03162E-6	-2.53738E-6	-9.63461E-5	-1.07111E-5	8.73014E-5	5.27455E-4
M	-1.23007E-5	-1.53743E-5	-5.83770E-4	-6.48606E-5	5.27455E-4	3.19323E-3

Date of computation: 2023-08-01 23:50 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

25.697

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

Unit

Source

[-]

Diameter

Value

26*

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 ODIM	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

Source

[1]

Unobserved

Value

370

Unit

Source

[1]

Astrometry Summary

RMS of Residuals
First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

RMS of Residuals

Value

0.557139

Unit

arcsec

Source

[1]

First Observation

Value

2022-09-19.331147

Unit

Source

[2]

Last Observation

Value

2022-09-25.1308

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

40 (1)

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

[3]

Last Observation

Value

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[1]

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

Sources

No.	Name	Additional
[1]	ESA ODIM	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 2022SR4 from 1950 to 2123

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	1950-04-03 07:08	> 1 d	0.0398295	0.0397203	0.0011576
EARTH	1958-09-22 04:16	628.3	0.1167255	0.0881832	0.0095143
EARTH	1969-10-01 10:37	172.2	0.1044615	0.0922031	0.0040865
EARTH	1971-03-05 06:56	> 1 d	0.1961484	0.1812299	0.0050172
EARTH	1982-04-04 14:48	1417.4	0.0429583	0.0404269	0.0058036
EARTH	1990-09-24 11:16	> 1 d	0.0695418	0.0022423	0.0382502
EARTH	2001-10-03 00:05	89.6	0.1622114	0.0764325	0.0285929
EARTH	2003-03-20 10:07	> 1 d	0.1459433	0.0769231	0.0255281
EARTH	2014-04-08 16:49	1329.6	0.0903324	0.0513360	0.0149708
EARTH	2022-09-26 19:01	< 1 s	0.0202553	0.0201983	0.0000190
EARTH	2033-09-29 01:59	1234.8	0.0397776	0.0035169	0.0214682
EARTH	2044-10-02 02:48	100.5	0.1754538	0.1610817	0.0047908
EARTH	2046-03-20 00:22	> 1 d	0.1478609	0.1232611	0.0083187
EARTH	2057-04-03 07:07	> 1 d	0.0438081	0.0425908	0.0076486
EARTH	2065-09-19 07:27	> 1 d	0.1845669	0.0014219	0.0961509
EARTH	2068-04-11 04:60	> 1 d	0.1330470	0.0461587	0.1060920
EARTH	2076-09-25 00:18	> 1 d	0.0531714	0.0039549	0.1363368
EARTH	2087-09-29 05:15	> 1 d	0.0284320	0.0044948	0.0486588
EARTH	2100-03-26 18:12	> 1 d	0.1113380	0.0753256	0.0129267
EARTH	2111-04-10 00:26	> 1 d	0.0851989	0.0451647	0.0195604
EARTH	2119-09-27 11:17	> 1 d	0.0404465	0.0050410	0.0479116

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