Asteroids

2025FC help

Last update: 2025-11-24 16:53 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.527

Aphelion (Q)

1.800

Eccentricity (e)

0.547

Inclination (i)

1.9

deg

Orbit period (P)

458.4

Earth MOID

0.00008

U parameter

6.9

Next Earth close approach

Date

2030-03-24

Nominal distance (from Earth center)

0.13108

19609347

Maximum Brightness

27.7

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

28.7

mag

Diameter

5 - 11*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-03-19

Observatory

Catalina Sky Survey

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

1.163461

1-sigma variation

0.000156

Unit

Eccentricity (e)

Value

0.547384

1-sigma variation

0.000118

Unit

Inclination (i)

Value

1.9159

1-sigma variation

0.0005

Unit

Long. of Ascending Node (Ω)

Value

178.1862

1-sigma variation

1.352E-5

Unit

Arg. of Perihelion (ω)

Value

250.4103

1-sigma variation

0.0004

Unit

Mean Anomaly (M)

Value

238.71570

1-sigma variation

0.05352

Unit

Perihelion distance

Value

0.526601

1-sigma variation

Unit

Aphelion distance

Value

1.800321

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.001494

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.316055

1-sigma variation

Unit

MOID

Value

0.000081

1-sigma variation

Unit

Orbit Period

Value

458.3807

1-sigma variation

Unit

U parameter

Value

6.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.44851E-8	1.85290E-8	7.42741E-8	-4.24120E-10	-3.57358E-8	-8.37470E-6
e	1.85290E-8	1.40315E-8	5.63498E-8	-3.44088E-10	-2.81186E-8	-6.33775E-6
i	7.42741E-8	5.63498E-8	2.28751E-7	-1.35233E-9	-1.24688E-7	-2.54074E-5
Ω	-4.24120E-10	-3.44088E-10	-1.35233E-9	1.82806E-10	3.09322E-9	1.45586E-7
ω	-3.57358E-8	-2.81186E-8	-1.24688E-7	3.09322E-9	1.71737E-7	1.22481E-5
M	-8.37470E-6	-6.33775E-6	-2.54074E-5	1.45586E-7	1.22481E-5	2.86442E-3

Date of computation: 2025-11-24 16:53 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

28.737

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

5 - 11*

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

0.9

Unit

Source

[1]

Unobserved

Value

354

Unit

Source

[1]

Normalized RMS of residuals

Value

0.527454

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-03-18.969017

Unit

Source

[2]

Last Observation

Value

2025-03-19.91452

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

69 (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

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2025FC from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1953-03-24 15:03	1046.9	0.1359020	0.0856493	0.0167513
EARTH	1955-08-20 16:51	1183.2	0.0232905	0.0132621	0.0140400
EARTH	1972-03-24 04:44	686.3	0.1308537	0.0965806	0.0114244
EARTH	1974-08-21 01:08	942.0	0.0312712	0.0131009	0.0131785
EARTH	1993-08-27 20:37	597.5	0.1681971	0.1435241	0.0082297
EARTH	2006-03-15 05:00	1231.4	0.0767083	0.0206160	0.0186975
EARTH	2008-08-11 17:24	1027.4	0.1653776	0.1178367	0.0158681
EARTH	2025-03-18 15:40	< 1 min	0.0004424	0.0004420	0.0000001
EARTH	2030-03-24 14:27	396.6	0.1310804	0.1117684	0.0064373
EARTH	2067-08-07 15:04	> 1 d	0.0864610	0.0219089	0.0529336
EARTH	2072-08-12 01:55	> 1 d	0.0412747	0.0217402	0.0475886
EARTH	2074-03-12 14:25	> 1 d	0.1711269	0.0136121	0.0525065
EARTH	2077-08-17 19:52	> 1 d	0.1744707	0.0524068	0.0415172
EARTH	2079-03-18 06:06	> 1 d	0.0295330	0.0003702	0.0364735
EARTH	2084-03-22 02:34	> 1 d	0.0786787	0.0001391	0.0279432
VENUS	2112-11-15 00:53	> 1 w	0.0493841	0.0449830	0.1376926
EARTH	2121-08-04 11:30	> 1 w	0.1722918	0.0221461	0.4718272

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
74.81187787	75.78999406	0.00008070	MINIMUM
283.61402572	216.91232839	0.02205268	MINIMUM
358.46283708	325.49410187	0.46033867	SADDLE
179.57227505	146.74687592	0.78613729	SADDLE
358.36106447	145.34049819	1.54164928	SADDLE
179.53341249	326.73449497	2.78629832	MAXIMUM

Download:

MOID Plots

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