Asteroids

2025QF4 help

Last update: 2025-08-25 13:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.978

Aphelion (Q)

1.051

Eccentricity (e)

0.036

Inclination (i)

20.7

deg

Orbit period (P)

373.1

Earth MOID

0.00673

U parameter

6.5

Next Earth close approach

Date

2026-08-27

Nominal distance (from Earth center)

0.12507

18710414

Maximum Brightness

25.7

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.3

mag

Diameter

9 - 21*

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

1.014346

1-sigma variation

0.000065

Unit

Eccentricity (e)

Value

0.035864

1-sigma variation

0.000013

Unit

Inclination (i)

Value

20.7423

1-sigma variation

0.0085

Unit

Long. of Ascending Node (Ω)

Value

331.0231

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

261.1523

1-sigma variation

0.0996

Unit

Mean Anomaly (M)

Value

180.79983

1-sigma variation

0.11027

Unit

Perihelion distance

Value

0.977968

1-sigma variation

Unit

Aphelion distance

Value

1.050725

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.006794

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.017994

1-sigma variation

Unit

MOID

Value

0.006728

1-sigma variation

Unit

Orbit Period

Value

373.1452

1-sigma variation

Unit

U parameter

Value

6.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.19988E-9	8.53124E-10	5.47766E-7	1.29350E-8	6.45407E-6	-7.14628E-6
e	8.53124E-10	1.76379E-10	1.10582E-7	2.61191E-9	1.31180E-6	-1.45277E-6
i	5.47766E-7	1.10582E-7	7.23733E-5	1.70841E-6	8.41168E-4	-9.31369E-4
Ω	1.29350E-8	2.61191E-9	1.70841E-6	4.03308E-8	1.98638E-5	-2.19939E-5
ω	6.45407E-6	1.31180E-6	8.41168E-4	1.98638E-5	9.91857E-3	-1.09824E-2
M	-7.14628E-6	-1.45277E-6	-9.31369E-4	-2.19939E-5	-1.09824E-2	1.21604E-2

Date of computation: 2025-08-25 13:30 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

27.255

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

9 - 21*

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

0.9

Unit

Source

[1]

Normalized RMS of residuals

Value

0.792417

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-08-23.330029

Unit

Source

[2]

Last Observation

Value

2025-08-24.8772

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

28 (4)

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 2025QF4 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	1950-08-27 02:48	> 1 d	0.1058291	0.0091826	0.1897852
EARTH	1985-02-19 06:10	300.4	0.0853136	0.0602667	0.0087234
EARTH	1985-08-19 07:11	284.7	0.1927174	0.1592368	0.0111651
EARTH	1986-02-21 09:32	122.1	0.0874101	0.0445835	0.0147127
EARTH	1986-08-23 14:29	617.2	0.0294875	0.0087734	0.0160005
EARTH	1987-08-28 00:31	599.5	0.1292273	0.0786537	0.0168840
EARTH	2024-02-20 12:26	8.4	0.0463776	0.0442040	0.0007275
EARTH	2024-08-19 18:29	20.1	0.1585736	0.1568223	0.0005838
EARTH	2025-02-21 13:01	10.8	0.1139644	0.1134361	0.0001765
EARTH	2025-08-23 22:29	< 1 min	0.0107814	0.0107679	0.0000045
EARTH	2026-08-27 18:39	24.3	0.1250714	0.1232960	0.0005918
EARTH	2069-02-19 05:32	549.3	0.0679888	0.0202054	0.0215364
EARTH	2069-08-19 09:11	499.9	0.1887900	0.1253107	0.0211634
EARTH	2070-02-21 12:11	400.4	0.0682500	0.0198662	0.0201521
EARTH	2070-08-22 21:38	678.7	0.0593178	0.0055595	0.0192951
EARTH	2071-02-23 09:44	219.7	0.1973726	0.1460813	0.0171626
EARTH	2071-08-26 12:51	626.8	0.0695843	0.0258059	0.0148935
EARTH	2114-02-19 00:49	> 1 d	0.1465891	0.0219456	0.2165904
EARTH	2115-02-21 16:11	> 1 d	0.0222539	0.0190650	0.1122112
EARTH	2115-08-21 23:50	> 1 d	0.1413424	0.0137538	0.2157031
EARTH	2116-02-23 16:48	> 1 d	0.1142415	0.0210686	0.2718741
EARTH	2116-08-24 12:21	> 1 w	0.0193328	0.0065745	0.2546869
EARTH	2117-08-27 18:48	> 1 d	0.0916310	0.0000480	0.1434258

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
96.66925179	230.33941513	0.00672810	MINIMUM
281.25895781	49.33813551	0.01782859	MINIMUM
9.10951223	139.64453074	0.36043261	SADDLE
188.83292031	320.01452882	0.37206062	SADDLE
11.74213624	322.62257354	1.93370400	SADDLE
237.14267116	188.07261601	2.03658020	MAXIMUM

Download:

MOID Plots

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