Asteroids

2025FK12 help

Last update: 2025-04-15 07:30 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.922

Aphelion (Q)

1.515

Eccentricity (e)

0.243

Inclination (i)

6.8

deg

Orbit period (P)

491.2

Earth MOID

0.02422

U parameter

7.9

Next Earth close approach

Date

2025-04-20

Nominal distance (from Earth center)

0.02432

3638897

Maximum Brightness

20.1

mag

Risk

Object is not in risk list

Object is in priority list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

17 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-03-26

Observatory

Pan-STARRS 2, Haleakala

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

1.218397

1-sigma variation

0.000814

Unit

Eccentricity (e)

Value

0.243461

1-sigma variation

0.000655

Unit

Inclination (i)

Value

6.7560

1-sigma variation

0.0154

Unit

Long. of Ascending Node (Ω)

Value

20.0389

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

248.6572

1-sigma variation

0.0019

Unit

Mean Anomaly (M)

Value

333.70646

1-sigma variation

0.04221

Unit

Perihelion distance

Value

0.921765

1-sigma variation

Unit

Aphelion distance

Value

1.515028

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.260086

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.050980

1-sigma variation

Unit

MOID

Value

0.024223

1-sigma variation

Unit

Orbit Period

Value

491.2261

1-sigma variation

Unit

U parameter

Value

7.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	6.61811E-7	5.32509E-7	1.25131E-5	6.28316E-8	-1.07054E-6	3.43396E-5
e	5.32509E-7	4.28535E-7	1.00686E-5	4.93133E-8	-8.50501E-7	2.76291E-5
i	1.25131E-5	1.00686E-5	2.36592E-4	1.18038E-6	-2.01809E-5	6.49260E-4
Ω	6.28316E-8	4.93133E-8	1.18038E-6	3.28044E-8	-3.09500E-7	3.28524E-6
ω	-1.07054E-6	-8.50501E-7	-2.01809E-5	-3.09500E-7	3.55953E-6	-5.57952E-5
M	3.43396E-5	2.76291E-5	6.49260E-4	3.28524E-6	-5.57952E-5	1.78184E-3

Date of computation: 2025-04-10 09:29 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

25.953

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

0.593659

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-03-26.405204

Unit

Source

[2]

Last Observation

Value

2025-04-06.319854

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

Close Approaches for 2025FK12 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	1951-04-23 01:11	> 1 w	0.0332907	0.0223078	0.0724235
EARTH	1955-07-08 11:22	> 1 mo	0.1442411	0.1342695	0.0087464
EARTH	1959-08-31 13:32	> 1 d	0.1203188	0.0932900	0.0353085
EARTH	1986-04-13 04:37	> 1 d	0.1055114	0.0205692	0.1147536
EARTH	1990-05-11 00:27	> 1 mo	0.1014000	0.0009905	0.0884630
EARTH	1994-08-23 12:24	> 1 w	0.1036019	0.0924856	0.0409408
EARTH	2025-04-20 13:33	< 1 min	0.0243401	0.0242464	0.0000312
EARTH	2029-06-28 06:29	> 1 w	0.1448966	0.1433985	0.0006323
EARTH	2033-08-30 16:28	> 1 d	0.1078015	0.0911569	0.0147411
EARTH	2060-04-12 22:25	> 1 d	0.1078525	0.0219281	0.1011699
EARTH	2064-05-10 06:03	> 1 w	0.1010246	0.0016872	0.0708048
EARTH	2068-08-23 12:21	> 1 d	0.1028696	0.0901871	0.0284857
EARTH	2072-09-05 11:04	> 1 d	0.1967364	0.1017024	0.0375625
EARTH	2099-04-20 10:58	> 1 w	0.0271084	0.0256129	0.0304421
EARTH	2103-06-10 16:46	> 1 mo	0.1377766	0.0760739	0.0959424
EARTH	2107-08-28 00:54	> 1 mo	0.0929897	0.0895942	0.1289242
EARTH	2111-09-07 05:32	> 1 w	0.1851027	0.0873868	0.6841796

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
312.83869386	107.03682391	0.02423802	MINIMUM
52.93565149	232.49280902	0.09217634	MINIMUM
7.73143301	176.21984869	0.14493615	SADDLE
182.31785740	348.26827615	0.54843437	SADDLE
1.36150677	347.87056948	1.90284299	SADDLE
180.14921169	166.59025717	2.52775372	MAXIMUM

Download:

MOID Plots

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