Asteroids

2025QA help

Last update: 2025-08-18 14:16 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.761

Aphelion (Q)

1.031

Eccentricity (e)

0.151

Inclination (i)

14.1

deg

Orbit period (P)

309.7

Earth MOID

0.01359

U parameter

5.7

Next Earth close approach

Date

2036-08-11

Nominal distance (from Earth center)

0.10785

16134111

Maximum Brightness

24.7

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.6

mag

Diameter

13 - 29*

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

0.895898

1-sigma variation

0.000014

Unit

Eccentricity (e)

Value

0.151121

1-sigma variation

0.000026

Unit

Inclination (i)

Value

14.1284

1-sigma variation

0.0048

Unit

Long. of Ascending Node (Ω)

Value

323.6051

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

191.8637

1-sigma variation

0.0039

Unit

Mean Anomaly (M)

Value

276.45502

1-sigma variation

0.00419

Unit

Perihelion distance

Value

0.760509

1-sigma variation

Unit

Aphelion distance

Value

1.031288

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.013867

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.225271

1-sigma variation

Unit

MOID

Value

0.013592

1-sigma variation

Unit

Orbit Period

Value

309.7324

1-sigma variation

Unit

U parameter

Value

5.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.89123E-10	-3.53105E-10	-6.48852E-8	-1.34414E-9	-3.90738E-8	2.75074E-8
e	-3.53105E-10	6.66610E-10	1.23224E-7	2.55801E-9	8.02043E-8	-6.12551E-8
i	-6.48852E-8	1.23224E-7	2.28904E-5	4.75673E-7	1.53929E-5	-1.21525E-5
Ω	-1.34414E-9	2.55801E-9	4.75673E-7	9.89267E-9	3.24329E-7	-2.59194E-7
ω	-3.90738E-8	8.02043E-8	1.53929E-5	3.24329E-7	1.53535E-5	-1.56163E-5
M	2.75074E-8	-6.12551E-8	-1.21525E-5	-2.59194E-7	-1.56163E-5	1.75529E-5

Date of computation: 2025-08-18 14:16 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

26.569

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

13 - 29*

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 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

1.0

Unit

Source

[1]

Normalized RMS of residuals

Value

0.722706

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-08-16.261366

Unit

Source

[2]

Last Observation

Value

2025-08-17.97734

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

93 (3)

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 2025QA 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	1957-08-11 18:45	769.7	0.1098117	0.0391088	0.0250961
EARTH	1963-08-24 21:58	> 1 d	0.1160035	0.0536715	0.0224489
EARTH	1980-08-16 06:32	203.4	0.0173029	0.0150523	0.0012082
EARTH	1997-08-18 19:27	178.6	0.0467548	0.0417846	0.0016757
EARTH	2008-08-11 02:01	36.8	0.1308741	0.1251790	0.0019004
EARTH	2014-08-31 00:05	108.5	0.1885423	0.1846337	0.0013052
EARTH	2025-08-16 04:48	< 1 min	0.0151729	0.0151588	0.0000047
EARTH	2036-08-11 09:32	46.7	0.1078499	0.1037205	0.0013781
EARTH	2053-08-21 03:16	257.8	0.0781512	0.0707707	0.0024735
EARTH	2064-08-14 14:44	89.7	0.0236276	0.0207629	0.0009984
EARTH	2081-08-19 18:15	450.7	0.0629000	0.0500915	0.0043331
EARTH	2092-08-11 03:38	216.8	0.1162843	0.0933882	0.0076788
EARTH	2098-08-30 16:44	598.6	0.1897408	0.1662290	0.0079233
EARTH	2109-08-17 00:45	549.5	0.0144931	0.0138070	0.0020587
EARTH	2120-08-11 15:37	> 1 d	0.1373403	0.0300306	0.0912186

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
165.48457580	222.35448644	0.01359220	MINIMUM
336.58798172	26.89706795	0.22101132	MINIMUM
276.74163496	323.18800311	0.24988374	SADDLE
55.06896915	115.08922203	0.28689566	SADDLE
13.06648225	247.43166666	1.76852718	SADDLE
182.49354494	56.69073295	2.02142334	MAXIMUM

Download:

MOID Plots

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