Asteroids

2025QD8 help

Last update: 2025-09-02 13:46 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.844

Aphelion (Q)

2.803

Eccentricity (e)

0.537

Inclination (i)

6.1

deg

Orbit period (P)

899.6

Earth MOID

0.00053

U parameter

6.7

Next Earth close approach

Date

2025-09-03

Nominal distance (from Earth center)

0.00146

218361

Maximum Brightness

13.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

17 - 40*

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

1.823757

1-sigma variation

0.000362

Unit

Eccentricity (e)

Value

0.536977

1-sigma variation

0.000100

Unit

Inclination (i)

Value

6.0856

1-sigma variation

0.0009

Unit

Long. of Ascending Node (Ω)

Value

340.7480

1-sigma variation

3.697E-5

Unit

Arg. of Perihelion (ω)

Value

58.1398

1-sigma variation

0.0010

Unit

Mean Anomaly (M)

Value

14.72757

1-sigma variation

0.00331

Unit

Perihelion distance

Value

0.844441

1-sigma variation

Unit

Aphelion distance

Value

2.803073

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.001789

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.819563

1-sigma variation

Unit

MOID

Value

0.000532

1-sigma variation

Unit

Orbit Period

Value

899.5987

1-sigma variation

Unit

U parameter

Value

6.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.30690E-7	3.61031E-8	3.36100E-7	-2.89590E-9	-3.56750E-7	-1.19817E-6
e	3.61031E-8	9.97367E-9	9.28499E-8	-8.15666E-10	-9.84947E-8	-3.30998E-7
i	3.36100E-7	9.28499E-8	8.64399E-7	-7.63362E-9	-9.16812E-7	-3.08142E-6
Ω	-2.89590E-9	-8.15666E-10	-7.63362E-9	1.36705E-9	3.30008E-9	2.68062E-8
ω	-3.56750E-7	-9.84947E-8	-9.16812E-7	3.30008E-9	9.90755E-7	3.26969E-6
M	-1.19817E-6	-3.30998E-7	-3.08142E-6	2.68062E-8	3.26969E-6	1.09850E-5

Date of computation: 2025-09-02 13:46 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

25.991

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

17 - 40*

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

0.659706

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-08-16.380224

Unit

Source

[2]

Last Observation

Value

2025-09-01.823111

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

51 (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 2025QD8 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	1958-11-22 23:21	> 1 d	0.1522134	0.1405046	0.0042309
EARTH	1976-12-20 15:25	> 1 d	0.1030161	0.1029350	0.0006242
EARTH	1995-01-02 10:35	> 1 d	0.1717830	0.1120993	0.0246689
EARTH	2007-08-26 03:27	> 1 d	0.1010372	0.0105149	0.0302326
EARTH	2025-09-03 14:57	< 1 min	0.0014597	0.0014590	0.0000002
MARS	2038-06-11 02:22	> 1 d	0.0374252	0.0294745	0.0102761
EARTH	2052-12-22 14:17	> 1 d	0.0998236	0.0959517	0.0129123
EARTH	2057-09-12 05:44	> 1 w	0.0606792	0.0004702	0.0584333
EARTH	2089-11-02 03:24	> 1 w	0.1707693	0.1690999	0.0012078
EARTH	2094-08-23 18:30	> 1 d	0.1425234	0.0006716	0.0533873
EARTH	2121-12-10 06:51	> 1 w	0.1333226	0.0964810	0.0462124

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
326.24645015	240.57801654	0.00053218	MINIMUM
31.73603514	352.58599051	0.09685255	MINIMUM
1.35726169	300.92265417	0.16987753	SADDLE
179.76005060	116.98919018	1.80080417	SADDLE
358.58243825	115.92022519	1.85113341	SADDLE
179.38727498	296.78845974	3.79294972	MAXIMUM

Download:

MOID Plots

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