Asteroids

2025JF help

Last update: 2025-05-06 01:01 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.504

Aphelion (Q)

3.266

Eccentricity (e)

0.733

Inclination (i)

0.2

deg

Orbit period (P)

945.3

Earth MOID

0.00087

U parameter

8.4

Next Earth close approach

Date

2045-10-10

Nominal distance (from Earth center)

0.06426

9612844

Maximum Brightness

25.9

mag

Risk

Object is in risk list

Object is in priority list

Physical Properties

Absolute Magnitude (H)

28.5

mag

Diameter

5 - 12*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-05-01

Observatory

Crni Vrh

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.884989

1-sigma variation

0.005066

Unit

Eccentricity (e)

Value

0.732722

1-sigma variation

0.000909

Unit

Inclination (i)

Value

0.2366

1-sigma variation

0.0003

Unit

Long. of Ascending Node (Ω)

Value

53.4864

1-sigma variation

0.0199

Unit

Arg. of Perihelion (ω)

Value

66.8277

1-sigma variation

0.0194

Unit

Mean Anomaly (M)

Value

19.56522

1-sigma variation

0.09251

Unit

Perihelion distance

Value

0.503816

1-sigma variation

Unit

Aphelion distance

Value

3.266163

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.307002

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.201417

1-sigma variation

Unit

MOID

Value

0.000872

1-sigma variation

Unit

Orbit Period

Value

945.2828

1-sigma variation

Unit

U parameter

Value

8.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.56619E-5	4.60456E-6	-2.05044E-7	7.89418E-5	-7.73334E-5	-4.68608E-4
e	4.60456E-6	8.26212E-7	-3.63962E-8	1.41470E-5	-1.38597E-5	-8.40833E-5
i	-2.05044E-7	-3.63962E-8	7.22401E-8	-3.90025E-6	3.78517E-6	3.74968E-6
Ω	7.89418E-5	1.41470E-5	-3.90025E-6	3.94647E-4	-3.85115E-4	-1.44179E-3
ω	-7.73334E-5	-1.38597E-5	3.78517E-6	-3.85115E-4	3.75997E-4	1.41241E-3
M	-4.68608E-4	-8.40833E-5	3.74968E-6	-1.44179E-3	1.41241E-3	8.55719E-3

Date of computation: 2025-05-03 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

28.489

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

5 - 12*

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

0.403066

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-05-01.93342

Unit

Source

[2]

Last Observation

Value

2025-05-03.10748

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

27 (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 2025JF 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	1958-10-22 18:40	> 1 mo	0.1433436	0.0003540	0.8045948
EARTH	1964-05-10 15:54	> 1 mo	0.1953303	0.0000750	0.9603467
EARTH	1966-10-04 11:54	> 1 mo	0.1954295	0.0002821	1.0221810
EARTH	1972-04-22 17:32	> 1 mo	0.1381255	0.0002923	1.0924448
VENUS	1990-10-18 15:50	> 1 mo	0.0459369	0.0381497	0.3942245
MARS	2003-10-08 21:40	> 1 w	0.0343833	0.0342859	0.0232027
EARTH	2011-10-23 04:02	> 1 w	0.1350200	0.0001436	0.3052412
EARTH	2019-10-07 12:22	> 1 d	0.1547047	0.0001489	0.1322778
EARTH	2025-05-01 06:11	< 1 min	0.0011612	0.0011572	0.0000013
EARTH	2045-10-10 21:46	> 1 w	0.0642579	0.0022820	0.4754168
EARTH	2069-04-24 04:21	> 1 d	0.1378173	0.0007731	0.0657083
EARTH	2076-10-19 17:55	> 1 d	0.1028102	0.0023422	0.0892114
EARTH	2100-05-02 10:58	> 1 w	0.0102648	0.0009710	0.4551840
EARTH	2107-10-20 08:43	> 1 mo	0.0777380	0.0024834	8.5778904
EARTH	2118-05-12 05:02	> 1 mo	0.1729359	0.0010783	15.7500110
MARS	2123-08-18 17:57	> 1 mo	0.0484790	0.0131718	13.5992088
VENUS	2125-11-23 13:39	> 1 mo	0.0349999	0.0202985	18.2232405

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
50.56083383	117.76006919	0.00087229	MINIMUM
309.99120716	279.20512253	0.00222801	MINIMUM
0.55047012	18.88626343	0.48066350	SADDLE
0.56801564	198.91156300	1.51926480	SADDLE
180.08456601	198.20087339	2.25069043	SADDLE
180.08174565	18.19697027	4.25059865	MAXIMUM

Download:

MOID Plots

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

Level lines of the squared distance function

2025JF

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS
2082-05-02.513	81616.513	0.694	0.94 ± 0.027	9.54E6	4.04E-8	1.52E-9	-8.77
2090-05-01.721	84537.721	0.695	0.51 ± 0.024	2.26E7	2.75E-8	1.03E-9	-8.99
2097-05-02.558	87095.558	0.130	0.29 ± 0.052	2.70E6	3.16E-7	1.18E-8	-7.98
2115-05-04.523	93670.523	0.130	0.54 ± 0.048	4.43E7	1.73E-8	6.50E-10	-9.33
2118-05-03.127	94765.127	-0.841	0.75 ± 0.017	2.19E7	2.66E-8	9.78E-10	-9.17
2118-05-03.137	94765.137	-0.650	1.01 ± 0.018	1.56E7	2.00E-8	7.36E-10	-9.29
2118-05-03.138	94765.138	-0.684	0.84 ± 0.017	5.98E6	8.87E-8	3.27E-9	-8.64
2119-05-04.628	95131.628	-3.790	0.72 ± 0.038	3.89E5	1.72E-9	6.11E-11	-10.37
2121-05-02.919	95860.919	-0.277	0.87 ± 0.029	4.01E6	1.35E-7	5.03E-9	-8.47
2121-05-02.921	95860.921	-0.428	0.82 ± 0.027	5.25E6	1.21E-7	4.50E-9	-8.52
2121-05-04.021	95862.021	1.354	0.61 ± 0.038	3.88E6	7.65E-8	2.91E-9	-8.71


Based on 27 optical observations (of which 0 are rejected as outliers) from 2025/05/01.933 to 2025/05/03.107.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.12 and 1.12 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20250503 133902.797 UTC.

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