Asteroids

2022SD29 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.910

Aphelion (Q)

1.145

Eccentricity (e)

0.114

Inclination (i)

4.2

deg

Orbit period (P)

380.5

Earth MOID

0.00619

U parameter

3.9

Next Earth close approach

Date

2045-03-13

Nominal distance (from Earth center)

0.14496

21685769

Maximum Brightness

25.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.3

mag

Diameter

14 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2022-09-29

Observatory

Pan-STARRS 2, 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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.027692

1-sigma variation

0.000001

Unit

Eccentricity (e)

Value

0.114282

1-sigma variation

0.000004

Unit

Inclination (i)

Value

4.1675

1-sigma variation

0.0001

Unit

Long. of Ascending Node (Ω)

Value

353.8271

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

266.9107

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

100.62857

1-sigma variation

0.00257

Unit

Perihelion distance

Value

0.910246

1-sigma variation

Unit

Aphelion distance

Value

1.145138

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.014772

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.012684

1-sigma variation

Unit

MOID

Value

0.006194

1-sigma variation

Unit

Orbit Period

Value

380.5334

1-sigma variation

Unit

U parameter

Value

3.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.55219E-12	4.54519E-12	1.42151E-10	8.53720E-11	1.44981E-10	-3.20442E-9
e	4.54519E-12	1.35255E-11	4.22800E-10	2.47664E-10	3.89860E-10	-9.36593E-9
i	1.42151E-10	4.22800E-10	1.32285E-8	7.77294E-9	1.21423E-8	-2.92871E-7
Ω	8.53720E-11	2.47664E-10	7.77294E-9	5.18956E-9	8.35799E-9	-1.76971E-7
ω	1.44981E-10	3.89860E-10	1.21423E-8	8.35799E-9	2.00847E-8	-3.03202E-7
M	-3.20442E-9	-9.36593E-9	-2.92871E-7	-1.76971E-7	-3.03202E-7	6.61862E-6

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

26.34

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

14 - 30*

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

1092

Unit

Source

[1]

Normalized RMS of residuals

Value

0.672388

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2022-09-22.459981

Unit

Source

[2]

Last Observation

Value

2022-11-19.284968

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

24 (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 2022SD29 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	1950-03-23 17:10	> 1 d	0.0803467	0.0229520	0.0191821
EARTH	1950-12-15 09:22	> 1 w	0.1804643	0.1758040	0.0015722
EARTH	1951-09-12 19:40	> 1 d	0.0372515	0.0037582	0.0504389
EARTH	1974-03-23 23:39	194.2	0.0251682	0.0168392	0.0029274
EARTH	1974-12-26 01:39	> 1 d	0.1805045	0.1796865	0.0002729
EARTH	1975-08-23 04:30	> 1 d	0.0845632	0.0756590	0.0029739
EARTH	1976-09-21 05:45	129.0	0.1979473	0.1878427	0.0033682
EARTH	1997-03-29 16:23	2.1	0.0799900	0.0799556	0.0000115
EARTH	1997-12-11 04:34	95.5	0.1811522	0.1811186	0.0000112
EARTH	1998-09-10 23:11	20.5	0.0294453	0.0287322	0.0002379
EARTH	2020-03-12 21:11	< 1 min	0.1795987	0.1795577	0.0000137
EARTH	2021-04-14 21:47	4.7	0.0897281	0.0897221	0.0000020
EARTH	2021-12-09 13:04	3.0	0.1789385	0.1789214	0.0000057
EARTH	2022-09-09 18:23	< 1 min	0.0403531	0.0403500	0.0000011
EARTH	2045-03-13 05:07	11.6	0.1449604	0.1441509	0.0002698
EARTH	2046-02-23 05:03	275.0	0.1114223	0.1108062	0.0002054
EARTH	2046-05-02 01:38	354.5	0.1047784	0.1043384	0.0001467
EARTH	2046-12-04 21:01	273.4	0.1762269	0.1761627	0.0000214
EARTH	2047-09-10 04:10	19.3	0.0346931	0.0340114	0.0002273
EARTH	2072-03-18 00:05	246.2	0.0117506	0.0052057	0.0027947
EARTH	2072-12-20 13:34	> 1 d	0.1812173	0.1765985	0.0015511
EARTH	2073-08-13 12:52	> 1 d	0.0903309	0.0687853	0.0071822
EARTH	2073-09-12 10:53	> 1 d	0.0908276	0.0663330	0.0084457
EARTH	2094-03-14 05:49	> 1 w	0.0656506	0.0042240	0.1871779
EARTH	2095-01-12 13:41	> 1 mo	0.1638120	0.0736606	0.0424833
EARTH	2095-06-19 00:05	> 1 mo	0.1245571	0.1031018	0.0073407
EARTH	2095-10-30 18:50	> 1 mo	0.1504713	0.0644618	0.0576711
EARTH	2096-09-11 08:51	> 1 d	0.0962055	0.0125861	0.1004263
EARTH	2117-03-19 10:52	> 1 mo	0.0210868	0.0049380	0.8021603
EARTH	2117-12-14 11:43	> 1 mo	0.1850877	0.1093233	0.1491935
EARTH	2118-09-04 16:21	> 1 mo	0.0543999	0.0236359	0.6350125

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
284.10510794	75.24570825	0.00661565	MINIMUM
81.34136507	247.26664251	0.00764116	MINIMUM
2.94381318	161.48288468	0.12623229	SADDLE
182.46158511	340.96862637	0.17813133	SADDLE
2.82088402	341.35261977	1.89362003	SADDLE
182.34851675	160.87705631	2.15899080	MAXIMUM

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MOID Plots

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