Asteroids

2025SQ12 help

Last update: 2025-09-28 13:16 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

1.009

Aphelion (Q)

1.808

Eccentricity (e)

0.283

Inclination (i)

22.3

deg

Orbit period (P)

610.6

Earth MOID

0.04188

U parameter

8.1

Next Earth close approach

Date

2025-10-01

Nominal distance (from Earth center)

0.0438

6552275

Maximum Brightness

19.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.2

mag

Diameter

24 - 50*

Taxonomic type

Rotation period (T)

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

1.408494

1-sigma variation

0.001604

Unit

Eccentricity (e)

Value

0.283452

1-sigma variation

0.000774

Unit

Inclination (i)

Value

22.2621

1-sigma variation

0.0341

Unit

Long. of Ascending Node (Ω)

Value

7.1306

1-sigma variation

0.0012

Unit

Arg. of Perihelion (ω)

Value

32.4636

1-sigma variation

0.0304

Unit

Mean Anomaly (M)

Value

13.07226

1-sigma variation

0.00288

Unit

Perihelion distance

Value

1.009253

1-sigma variation

Unit

Aphelion distance

Value

1.807734

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.043516

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.703187

1-sigma variation

Unit

MOID

Value

0.041880

1-sigma variation

Unit

Orbit Period

Value

610.5633

1-sigma variation

Unit

U parameter

Value

8.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.57435E-6	1.24178E-6	5.46386E-5	1.91496E-6	-4.84159E-5	-3.41571E-6
e	1.24178E-6	5.99047E-7	2.63591E-5	9.23247E-7	-2.33255E-5	-1.66170E-6
i	5.46386E-5	2.63591E-5	1.15989E-3	4.06144E-5	-1.02580E-3	-7.33749E-5
Ω	1.91496E-6	9.23247E-7	4.06144E-5	1.42886E-6	-3.62701E-5	-2.41633E-6
ω	-4.84159E-5	-2.33255E-5	-1.02580E-3	-3.62701E-5	9.26436E-4	5.64860E-5
M	-3.41571E-6	-1.66170E-6	-7.33749E-5	-2.41633E-6	5.64860E-5	8.31968E-6

Date of computation: 2025-09-28 13:16 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

25.247

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

24 - 50*

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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.694432

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-09-25.26781

Unit

Source

[2]

Last Observation

Value

2025-09-28.12491

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

30 (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 2025SQ12 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	2020-09-26 12:49	> 1 d	0.1128624	0.0466952	0.0247642
EARTH	2025-10-01 08:14	< 1 min	0.0437768	0.0436673	0.0000365
EARTH	2030-10-05 12:28	> 1 d	0.0797430	0.0397277	0.0228013
EARTH	2035-10-10 17:02	> 1 d	0.1714777	0.0348783	0.0489417
EARTH	2107-09-24 20:24	> 1 w	0.1838454	0.0307041	0.2200031
EARTH	2112-09-29 02:17	> 1 w	0.0875021	0.0397363	0.1866347
EARTH	2117-10-03 09:10	> 1 w	0.0426683	0.0422601	0.0225819
EARTH	2122-10-07 20:22	> 1 w	0.1005720	0.0384629	0.2670932

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
336.70433217	268.28983082	0.04185861	MINIMUM
196.86822531	128.27833364	0.85924123	SADDLE
4.29390673	122.76919684	2.00624794	SADDLE
174.15540081	291.61371059	2.78871369	MAXIMUM

Download:

MOID Plots

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