Asteroids

2025TC help

Last update: 2025-10-03 13:15 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.795

Aphelion (Q)

4.568

Eccentricity (e)

0.703

Inclination (i)

1.9

deg

Orbit period (P)

1603.9

Earth MOID

0.00037

U parameter

6.8

Next Earth close approach

Date

2047-09-26

Nominal distance (from Earth center)

0.08117

12143013

Maximum Brightness

24.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

11 - 24*

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

2.681518

1-sigma variation

0.001099

Unit

Eccentricity (e)

Value

0.703443

1-sigma variation

0.000133

Unit

Inclination (i)

Value

1.9219

1-sigma variation

0.0007

Unit

Long. of Ascending Node (Ω)

Value

189.2045

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

240.5175

1-sigma variation

0.0010

Unit

Mean Anomaly (M)

Value

2.24396

1-sigma variation

0.00095

Unit

Perihelion distance

Value

0.795224

1-sigma variation

Unit

Aphelion distance

Value

4.567813

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.072964

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.004841

1-sigma variation

Unit

MOID

Value

0.000371

1-sigma variation

Unit

Orbit Period

Value

1603.8717

1-sigma variation

Unit

U parameter

Value

6.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.20765E-6	1.45857E-7	7.29530E-7	1.34267E-7	1.14128E-6	-1.04837E-6
e	1.45857E-7	1.76165E-8	8.81297E-8	1.62180E-8	1.37891E-7	-1.26625E-7
i	7.29530E-7	8.81297E-8	4.43718E-7	8.13434E-8	6.97054E-7	-6.34050E-7
Ω	1.34267E-7	1.62180E-8	8.13434E-8	1.49664E-8	1.27496E-7	-1.16619E-7
ω	1.14128E-6	1.37891E-7	6.97054E-7	1.27496E-7	1.09877E-6	-9.92709E-7
M	-1.04837E-6	-1.26625E-7	-6.34050E-7	-1.16619E-7	-9.92709E-7	9.10291E-7

Date of computation: 2025-10-03 13:15 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

27.01

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

11 - 24*

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

0.633031

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-09-30.290569

Unit

Source

[2]

Last Observation

Value

2025-10-02.89591

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

90 (1)

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 2025TC 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
VENUS	1967-03-01 08:48	963.8	0.0451753	0.0309405	0.0047822
EARTH	1978-09-16 15:39	1439.1	0.1202595	0.0745855	0.0152497
EARTH	2014-02-08 01:40	> 1 d	0.0705118	0.0378722	0.0355106
EARTH	2021-10-31 19:17	> 1 d	0.1572252	0.1325292	0.0082375
EARTH	2025-10-03 06:33	< 1 min	0.0005727	0.0005723	0.0000001
EARTH	2047-09-26 21:52	> 1 d	0.0811710	0.0000558	0.0753066
EARTH	2061-01-26 07:58	> 1 d	0.0751360	0.0348263	0.0145860
EARTH	2074-02-07 21:35	> 1 d	0.1010699	0.0249569	0.0487022
EARTH	2108-10-11 21:13	> 1 mo	0.0592633	0.0090264	0.2345883

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
332.98641479	269.54992295	0.00037069	MINIMUM
25.98574098	25.87961027	0.02904727	MINIMUM
359.48361477	327.82363787	0.19260693	SADDLE
359.32843680	147.47753230	1.81052304	SADDLE
179.89082902	148.24514428	3.55282016	SADDLE
179.88126559	328.24451427	5.55355140	MAXIMUM

Download:

MOID Plots

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