Asteroids

2025XT4 help

Last update: 2026-01-05 12:45 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.941

Aphelion (Q)

1.696

Eccentricity (e)

0.286

Inclination (i)

2.1

deg

Orbit period (P)

553.1

Earth MOID

0.01201

U parameter

6.9

Next Earth close approach

Date

2029-01-10

Nominal distance (from Earth center)

0.04136

6186855

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.8

mag

Diameter

7 - 17*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-12-13

Observatory

Pan-STARRS 1, 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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.318702

1-sigma variation

0.000199

Unit

Eccentricity (e)

Value

0.286308

1-sigma variation

0.000119

Unit

Inclination (i)

Value

2.0891

1-sigma variation

0.0008

Unit

Long. of Ascending Node (Ω)

Value

252.1907

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

236.6008

1-sigma variation

0.0010

Unit

Mean Anomaly (M)

Value

318.93486

1-sigma variation

0.01007

Unit

Perihelion distance

Value

0.941148

1-sigma variation

Unit

Aphelion distance

Value

1.696257

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.421791

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.059814

1-sigma variation

Unit

MOID

Value

0.012011

1-sigma variation

Unit

Orbit Period

Value

553.1190

1-sigma variation

Unit

U parameter

Value

6.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.94521E-8	2.36886E-8	1.62465E-7	1.70886E-8	2.01315E-7	2.00040E-6
e	2.36886E-8	1.42237E-8	9.75474E-8	1.02427E-8	1.20943E-7	1.20110E-6
i	1.62465E-7	9.75474E-8	6.69217E-7	7.13813E-8	8.26792E-7	8.23829E-6
Ω	1.70886E-8	1.02427E-8	7.13813E-8	1.33841E-8	7.31187E-8	8.70341E-7
ω	2.01315E-7	1.20943E-7	8.26792E-7	7.31187E-8	1.07097E-6	1.01934E-5
M	2.00040E-6	1.20110E-6	8.23829E-6	8.70341E-7	1.01934E-5	1.01435E-4

Date of computation: 2026-01-05 12:45 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

27.767

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

7 - 17*

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

0.63148

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-12-10.500624

Unit

Source

[2]

Last Observation

Value

2025-12-20.421431

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

26 (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 2025XT4 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	1975-12-18 04:50	> 1 d	0.0295926	0.0107436	0.0333617
EARTH	1979-02-22 16:13	> 1 w	0.0463761	0.0377136	0.0137456
EARTH	1982-03-25 22:37	> 1 d	0.1257545	0.0360895	0.0482201
EARTH	2022-12-03 14:22	303.0	0.1904968	0.1774288	0.0043562
EARTH	2025-12-20 14:10	< 1 min	0.0167806	0.0167601	0.0000068
EARTH	2029-01-10 02:46	> 1 d	0.0413566	0.0349306	0.0021470
EARTH	2032-02-21 08:11	> 1 d	0.0479789	0.0432703	0.0017396
EARTH	2035-03-17 00:22	> 1 d	0.0448244	0.0356118	0.0041668
EARTH	2038-03-29 02:03	651.0	0.1527262	0.1316513	0.0070531
MARS	2067-04-04 22:51	31.6	0.0465046	0.0456508	0.0002856
EARTH	2090-12-04 04:49	452.4	0.1888214	0.1695372	0.0064292
EARTH	2093-12-14 17:29	1007.8	0.0569409	0.0386247	0.0061815
EARTH	2097-01-01 06:28	937.5	0.0285103	0.0249927	0.0011884
EARTH	2100-03-01 12:13	> 1 d	0.0412484	0.0369736	0.0016931
EARTH	2103-03-25 00:22	> 1 d	0.0877439	0.0558392	0.0112185

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
331.59048952	350.10758778	0.01201077	MINIMUM
30.84222968	67.21508257	0.03596419	MINIMUM
4.29782200	32.67387625	0.05394712	SADDLE
181.12201559	208.58524787	0.68133333	SADDLE
1.81553050	209.37784966	1.95696431	SADDLE
180.87393087	28.39017305	2.68149471	MAXIMUM

Download:

MOID Plots

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