Asteroids

2025CT help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Amor

Perihelion (q)

1.024

Aphelion (Q)

1.428

Eccentricity (e)

0.165

Inclination (i)

14.5

deg

Orbit period (P)

495.9

Earth MOID

0.04587

U parameter

7.8

Next Earth close approach

Date

2044-02-03

Nominal distance (from Earth center)

0.06586

9852791

Maximum Brightness

21.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.8

mag

Diameter

18 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-02-02

Observatory

Mt. Lemmon 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

1.226185

1-sigma variation

0.000753

Unit

Eccentricity (e)

Value

0.164705

1-sigma variation

0.000450

Unit

Inclination (i)

Value

14.5069

1-sigma variation

0.0267

Unit

Long. of Ascending Node (Ω)

Value

130.4455

1-sigma variation

0.0030

Unit

Arg. of Perihelion (ω)

Value

19.4840

1-sigma variation

0.0071

Unit

Mean Anomaly (M)

Value

201.04550

1-sigma variation

0.18000

Unit

Perihelion distance

Value

1.024226

1-sigma variation

Unit

Aphelion distance

Value

1.428144

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.046933

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.396283

1-sigma variation

Unit

MOID

Value

0.045869

1-sigma variation

Unit

Orbit Period

Value

495.9439

1-sigma variation

Unit

U parameter

Value

7.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.67234E-7	3.39222E-7	2.00950E-5	2.23494E-6	-4.66501E-6	-1.35558E-4
e	3.39222E-7	2.02865E-7	1.20174E-5	1.33656E-6	-2.78970E-6	-8.10679E-5
i	2.00950E-5	1.20174E-5	7.12001E-4	7.91634E-5	-1.64221E-4	-4.80305E-3
Ω	2.23494E-6	1.33656E-6	7.91634E-5	8.80893E-6	-1.85444E-5	-5.33998E-4
ω	-4.66501E-6	-2.78970E-6	-1.64221E-4	-1.85444E-5	4.98354E-5	1.10696E-3
M	-1.35558E-4	-8.10679E-5	-4.80305E-3	-5.33998E-4	1.10696E-3	3.24014E-2

Date of computation: 2025-09-10 00:30 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

25.812

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

18 - 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

221

Unit

Source

[1]

Normalized RMS of residuals

Value

0.572984

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-02-02.455716

Unit

Source

[2]

Last Observation

Value

2025-02-08.34994

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 2025CT 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	1953-01-28 18:47	> 1 mo	0.1205932	0.0422902	1.0109637
MARS	1965-12-19 08:15	> 1 mo	0.0410464	0.0349146	0.1733484
EARTH	1972-02-02 07:24	> 1 d	0.0463723	0.0459763	0.0241547
MARS	1990-05-31 16:21	> 1 w	0.0366466	0.0347756	0.0352477
EARTH	1991-02-05 23:15	> 1 d	0.1442670	0.0399389	0.1524853
EARTH	2006-01-26 20:22	> 1 d	0.1885133	0.0379189	0.1055373
MARS	2014-11-07 03:42	> 1 d	0.0476062	0.0372794	0.0271457
EARTH	2025-01-31 16:36	< 1 min	0.0529909	0.0526836	0.0001025
MARS	2039-04-21 00:28	> 1 d	0.0457139	0.0340849	0.0390448
EARTH	2044-02-03 14:56	> 1 d	0.0658618	0.0457832	0.0784240
EARTH	2078-01-30 14:27	> 1 d	0.0877067	0.0453357	0.1925330
EARTH	2097-02-02 20:22	> 1 d	0.0623729	0.0466729	0.0434715

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
345.24295256	29.78028085	0.04604810	MINIMUM
211.87994986	254.60769545	0.44915862	SADDLE
9.30626616	237.07579721	2.03145047	SADDLE
180.00914424	47.59016998	2.41491991	MAXIMUM

Download:

MOID Plots

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