Asteroids

2025PQ1 help

Last update: 2025-08-16 13:22 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

1.009

Aphelion (Q)

3.348

Eccentricity (e)

0.537

Inclination (i)

7.2

deg

Orbit period (P)

1174.5

Earth MOID

0.00077

U parameter

7.1

Next Earth close approach

Date

2070-09-19

Nominal distance (from Earth center)

0.11937

17856777

Maximum Brightness

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

11 - 24*

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

2.178510

1-sigma variation

0.000996

Unit

Eccentricity (e)

Value

0.537048

1-sigma variation

0.000212

Unit

Inclination (i)

Value

7.1587

1-sigma variation

0.0022

Unit

Long. of Ascending Node (Ω)

Value

315.6566

1-sigma variation

4.316E-5

Unit

Arg. of Perihelion (ω)

Value

11.6995

1-sigma variation

0.0007

Unit

Mean Anomaly (M)

Value

29.04465

1-sigma variation

0.01956

Unit

Perihelion distance

Value

1.008546

1-sigma variation

Unit

Aphelion distance

Value

3.348473

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.000856

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

2.283398

1-sigma variation

Unit

MOID

Value

0.000765

1-sigma variation

Unit

Orbit Period

Value

1174.4584

1-sigma variation

Unit

U parameter

Value

7.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.91572E-7	2.10969E-7	2.18301E-6	4.28210E-8	-6.76731E-7	-1.94815E-5
e	2.10969E-7	4.48861E-8	4.64461E-7	9.11066E-9	-1.43982E-7	-4.14493E-6
i	2.18301E-6	4.64461E-7	4.80654E-6	9.43371E-8	-1.49015E-6	-4.28898E-5
Ω	4.28210E-8	9.11066E-9	9.43371E-8	1.86266E-9	-2.92607E-8	-8.41303E-7
ω	-6.76731E-7	-1.43982E-7	-1.49015E-6	-2.92607E-8	4.64155E-7	1.32953E-5
M	-1.94815E-5	-4.14493E-6	-4.28898E-5	-8.41303E-7	1.32953E-5	3.82756E-4

Date of computation: 2025-08-16 13:22 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

27.001

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

11 - 24*

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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.818607

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-08-07.811403

Unit

Source

[2]

Last Observation

Value

2025-08-09.97492

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

34 (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 2025PQ1 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	1962-08-31 16:14	> 1 mo	0.0584610	0.0246451	0.1985765
EARTH	2003-07-25 05:21	> 1 w	0.0564260	0.0089449	0.0731828
EARTH	2025-08-09 04:54	< 1 s	0.0021780	0.0021760	0.0000007
EARTH	2070-09-19 10:32	> 1 w	0.1193652	0.0588525	0.1144481
EARTH	2099-08-15 06:40	> 1 w	0.0172878	0.0032461	0.0302684

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
353.65542402	215.08145278	0.00076533	MINIMUM
359.04824982	44.92227930	1.99704350	SADDLE
179.78907618	45.63349873	2.36020625	SADDLE
179.60309254	225.52742028	4.36109015	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out

Level lines of the squared distance function

2025PQ1

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS
2070-08-08.166	77331.166	-2.275	1.38 ± 0.000	1.02E3	5.22E-5	1.21E-1	-5.15
2099-08-08.204	87923.204	0.625	0.40 ± 1.432	2.06E8	3.11E-9	1.23E-1	-9.58
2099-08-08.256	87923.256	-0.141	0.48 ± 0.000	1.61E6	7.67E-7	1.23E-1	-7.19
2102-08-09.082	89019.082	-0.389	0.37 ± 0.000	7.58E4	1.56E-5	1.23E-1	-5.90
2109-08-08.738	91575.738	3.878	1.02 ± 0.000	2.00E4	2.76E-8	1.26E-1	-8.68
2114-08-08.993	93401.993	-2.478	0.44 ± 0.016	1.70E6	3.45E-8	1.21E-1	-8.62


Based on 17 optical observations (of which 0 are rejected as outliers) from 2025/08/07.811 to 2025/08/09.901.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.64 and 1.64 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20250809 222138.932 UTC.

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Download Impactor Table as: