Asteroids

2025CQ3 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.839

Aphelion (Q)

1.200

Eccentricity (e)

0.177

Inclination (i)

28.8

deg

Orbit period (P)

376.0

Earth MOID

0.01270

U parameter

7.9

Next Earth close approach

Date

2026-02-10

Nominal distance (from Earth center)

0.15901

23787857

Maximum Brightness

24.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.4

mag

Diameter

22 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-02-08

Observatory

Mt. Lemmon 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

1.019597

1-sigma variation

0.000495

Unit

Eccentricity (e)

Value

0.177224

1-sigma variation

0.000277

Unit

Inclination (i)

Value

28.8324

1-sigma variation

0.0463

Unit

Long. of Ascending Node (Ω)

Value

137.4341

1-sigma variation

0.0021

Unit

Arg. of Perihelion (ω)

Value

265.8970

1-sigma variation

0.1219

Unit

Mean Anomaly (M)

Value

350.35841

1-sigma variation

0.35245

Unit

Perihelion distance

Value

0.838899

1-sigma variation

Unit

Aphelion distance

Value

1.200294

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.013477

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.039512

1-sigma variation

Unit

MOID

Value

0.012695

1-sigma variation

Unit

Orbit Period

Value

376.0461

1-sigma variation

Unit

U parameter

Value

7.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.44868E-7	1.37185E-7	2.28976E-5	1.02988E-6	6.02959E-5	-1.74407E-4
e	1.37185E-7	7.68710E-8	1.28335E-5	5.77255E-7	3.37778E-5	-9.77095E-5
i	2.28976E-5	1.28335E-5	2.14343E-3	9.64226E-5	5.63730E-3	-1.63085E-2
Ω	1.02988E-6	5.77255E-7	9.64226E-5	4.33772E-6	2.53546E-4	-7.33516E-4
ω	6.02959E-5	3.37778E-5	5.63730E-3	2.53546E-4	1.48476E-2	-4.29459E-2
M	-1.74407E-4	-9.77095E-5	-1.63085E-2	-7.33516E-4	-4.29459E-2	1.24222E-1

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

25.385

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

22 - 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

228

Unit

Source

[1]

Normalized RMS of residuals

Value

0.569846

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-02-05.4095

Unit

Source

[2]

Last Observation

Value

2025-02-09.08113

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 2025CQ3 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	1953-08-05 14:05	> 1 w	0.0760536	0.0369364	0.4571018
EARTH	1954-08-14 07:24	> 1 w	0.1180975	0.0395027	0.5118933
EARTH	1957-02-03 07:47	> 1 w	0.1014641	0.0140131	0.5600987
EARTH	1958-02-08 05:08	> 1 w	0.0815549	0.0135377	0.5556762
EARTH	1987-08-03 19:17	> 1 d	0.1224687	0.0347270	0.1120341
EARTH	1988-08-11 13:24	> 1 d	0.0727855	0.0388213	0.1175464
EARTH	1991-02-03 01:47	> 1 d	0.1453816	0.0152994	0.1832861
EARTH	1992-02-07 14:30	> 1 d	0.0418159	0.0136245	0.1902225
EARTH	2020-07-30 13:10	1167.8	0.1976657	0.1389441	0.0198328
EARTH	2021-08-08 13:16	907.9	0.0360093	0.0353546	0.0026645
EARTH	2022-08-17 10:13	606.0	0.1801407	0.1515275	0.0095605
EARTH	2025-02-05 06:58	< 1 min	0.0262904	0.0261616	0.0000429
EARTH	2026-02-10 20:08	209.1	0.1590120	0.1454008	0.0045382
EARTH	2055-08-03 22:01	> 1 d	0.1235664	0.0380689	0.1281259
EARTH	2056-08-11 11:51	> 1 d	0.0685893	0.0369135	0.1165626
EARTH	2059-02-03 02:01	> 1 d	0.1557472	0.0145159	0.1347272
EARTH	2060-02-07 10:17	> 1 d	0.0292613	0.0134618	0.1192344
EARTH	2089-08-07 13:11	> 1 w	0.0483533	0.0344634	0.3714453
EARTH	2090-08-16 05:52	> 1 w	0.1521904	0.0403618	0.5289639
EARTH	2093-02-04 16:32	> 1 w	0.0568082	0.0129664	0.5794662
EARTH	2094-02-10 00:57	> 1 w	0.1271492	0.0124874	0.5669229
EARTH	2123-08-07 12:29	> 1 w	0.0763245	0.0352416	0.3985573
EARTH	2124-08-15 02:33	> 1 w	0.1162641	0.0385994	0.4457426

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
83.33271866	34.21639863	0.01288940	MINIMUM
282.87029758	214.52778571	0.03601573	MINIMUM
2.54487393	305.02739192	0.47847499	SADDLE
183.79575473	123.39246920	0.58007075	SADDLE
358.64554479	119.78930165	1.78974718	SADDLE
163.44274036	284.02833158	2.12727650	MAXIMUM

Download:

MOID Plots

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