Asteroids

2025QB13 help

Last update: 2026-03-17 23:26 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.705

Aphelion (Q)

2.554

Eccentricity (e)

0.567

Inclination (i)

23.3

deg

Orbit period (P)

759.7

Earth MOID

0.01368

U parameter

8.0

Next Earth close approach

Date

2046-03-06

Nominal distance (from Earth center)

0.12931

19344153

Maximum Brightness

23.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.5

mag

Diameter

21 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-08-29

Observatory

ATLAS South Africa, Sutherland

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.629411

1-sigma variation

0.001875

Unit

Eccentricity (e)

Value

0.567354

1-sigma variation

0.000560

Unit

Inclination (i)

Value

23.3010

1-sigma variation

0.0185

Unit

Long. of Ascending Node (Ω)

Value

156.9021

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

97.0199

1-sigma variation

0.0142

Unit

Mean Anomaly (M)

Value

158.96256

1-sigma variation

0.28566

Unit

Perihelion distance

Value

0.704959

1-sigma variation

Unit

Aphelion distance

Value

2.553863

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.197361

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.023149

1-sigma variation

Unit

MOID

Value

0.013678

1-sigma variation

Unit

Orbit Period

Value

759.7040

1-sigma variation

Unit

U parameter

Value

8.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.51542E-6	1.05059E-6	3.45923E-5	1.10007E-7	2.66400E-5	-5.35589E-4
e	1.05059E-6	3.13973E-7	1.03376E-5	3.28714E-8	7.96075E-6	-1.60061E-4
i	3.45923E-5	1.03376E-5	3.40496E-4	1.08338E-6	2.62208E-4	-5.27027E-3
Ω	1.10007E-7	3.28714E-8	1.08338E-6	3.45691E-9	8.34401E-7	-1.67600E-5
ω	2.66400E-5	7.96075E-6	2.62208E-4	8.34401E-7	2.01995E-4	-4.05871E-3
M	-5.35589E-4	-1.60061E-4	-5.27027E-3	-1.67600E-5	-4.05871E-3	8.15991E-2

Date of computation: 2026-03-17 23:26 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

25.479

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

21 - 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

231

Unit

Source

[1]

Normalized RMS of residuals

Value

0.806755

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-08-29.348531

Unit

Source

[2]

Last Observation

Value

2025-08-31.38359

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

25 (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

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2025QB13 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1969-03-08 00:13	> 1 w	0.1018560	0.0987152	0.0923711
EARTH	1973-08-20 01:58	> 1 w	0.1590091	0.0102695	0.3805640
EARTH	2000-09-05 02:17	> 1 w	0.1522346	0.0121966	0.2659072
EARTH	2021-03-14 03:14	> 1 d	0.1667694	0.1010570	0.0356337
EARTH	2025-08-28 17:09	< 1 s	0.0141232	0.0140877	0.0000118
EARTH	2046-03-06 10:58	> 1 w	0.1293077	0.1047752	0.1318934
EARTH	2077-08-30 09:51	> 1 w	0.0321761	0.0103293	0.4365581
EARTH	2098-03-13 17:06	> 1 mo	0.1558542	0.1078789	1.1152478
EARTH	2102-08-30 02:52	> 1 mo	0.0087591	0.0087502	0.0805226
EARTH	2123-03-16 07:18	> 1 mo	0.1844832	0.1100364	117.4397901

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
48.66097266	234.98353444	0.01341244	MINIMUM
308.83732047	66.09500475	0.10286311	MINIMUM
358.11702879	148.53460466	0.46115350	SADDLE
359.97873669	332.50072675	1.65697782	SADDLE
179.25591146	333.00462655	1.69260369	SADDLE
180.79275549	153.88117613	3.51153365	MAXIMUM

Download:

MOID Plots

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