Asteroids

2025QC help

Last update: 2025-08-17 13:00 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.637

Aphelion (Q)

1.048

Eccentricity (e)

0.244

Inclination (i)

13.4

deg

Orbit period (P)

282.3

Earth MOID

0.03250

U parameter

6.9

Next Earth close approach

Date

2042-08-21

Nominal distance (from Earth center)

0.03291

4922536

Maximum Brightness

19.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.3

mag

Diameter

14 - 30*

Taxonomic type

Rotation period (T)

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

0.842161

1-sigma variation

0.000075

Unit

Eccentricity (e)

Value

0.243876

1-sigma variation

0.000147

Unit

Inclination (i)

Value

13.4420

1-sigma variation

0.0137

Unit

Long. of Ascending Node (Ω)

Value

147.2544

1-sigma variation

0.0011

Unit

Arg. of Perihelion (ω)

Value

353.6207

1-sigma variation

0.0060

Unit

Mean Anomaly (M)

Value

306.81983

1-sigma variation

0.02092

Unit

Perihelion distance

Value

0.636778

1-sigma variation

Unit

Aphelion distance

Value

1.047544

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.351112

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.032725

1-sigma variation

Unit

MOID

Value

0.032504

1-sigma variation

Unit

Orbit Period

Value

282.2870

1-sigma variation

Unit

U parameter

Value

6.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.67837E-9	-1.10624E-8	-1.01973E-6	7.34489E-8	-1.12562E-8	-1.37984E-6
e	-1.10624E-8	2.15713E-8	1.99620E-6	-1.44924E-7	-4.28354E-9	2.73274E-6
i	-1.01973E-6	1.99620E-6	1.87740E-4	-1.40752E-5	-1.05992E-5	2.69273E-4
Ω	7.34489E-8	-1.44924E-7	-1.40752E-5	1.12139E-6	2.30210E-6	-2.20136E-5
ω	-1.12562E-8	-4.28354E-9	-1.05992E-5	2.30210E-6	3.54113E-5	-5.74478E-5
M	-1.37984E-6	2.73274E-6	2.69273E-4	-2.20136E-5	-5.74478E-5	4.37652E-4

Date of computation: 2025-08-17 13:00 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

26.333

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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.483601

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-08-15.321834

Unit

Source

[2]

Last Observation

Value

2025-08-16.95518

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

15 (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

[-]

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 2025QC 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	1957-07-29 18:12	120.6	0.1822711	0.1730362	0.0031035
EARTH	1964-08-23 04:09	763.7	0.0349009	0.0332247	0.0011872
EARTH	1974-07-31 04:45	739.3	0.1642204	0.1363734	0.0096360
EARTH	1981-08-27 13:32	> 1 d	0.0538912	0.0381476	0.0109063
EARTH	1991-08-02 23:03	> 1 d	0.1348073	0.0928454	0.0157027
EARTH	1998-08-31 21:27	> 1 d	0.0876691	0.0525102	0.0143670
EARTH	2008-08-11 17:54	> 1 d	0.0677203	0.0489122	0.0075449
EARTH	2015-09-06 01:11	165.2	0.1812457	0.1614616	0.0066760
EARTH	2025-08-18 19:11	1.4	0.0372918	0.0371975	0.0000314
EARTH	2042-08-21 01:27	> 1 d	0.0329051	0.0327734	0.0008864
EARTH	2052-07-28 08:27	> 1 d	0.1963024	0.1102086	0.0340242
EARTH	2059-08-21 20:52	> 1 d	0.0333820	0.0333769	0.0004933
EARTH	2076-08-22 14:09	> 1 w	0.0344567	0.0332123	0.0470833
EARTH	2086-07-30 06:59	> 1 w	0.1682990	0.0865709	0.4862705
EARTH	2093-08-26 00:11	> 1 mo	0.0469643	0.0365443	0.4176632
EARTH	2103-08-03 23:35	> 1 mo	0.1302617	0.0715385	0.7170640
EARTH	2110-09-03 10:58	> 1 mo	0.1111645	0.0536627	0.7909007
EARTH	2120-08-16 01:52	> 1 mo	0.0489434	0.0373599	0.5548089

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
189.43061548	227.60723396	0.03250364	MINIMUM
359.31832040	37.94260182	0.35121254	SADDLE
4.06369609	223.71883154	1.65047028	SADDLE
182.87723704	42.55426752	2.03518578	MAXIMUM

Download:

MOID Plots

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