Asteroids

2025UP help

Last update: 2025-10-19 13:53 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.870

Aphelion (Q)

2.231

Eccentricity (e)

0.439

Inclination (i)

26.0

deg

Orbit period (P)

705.4

Earth MOID

0.00847

U parameter

7.5

Next Earth close approach

Date

2054-10-03

Nominal distance (from Earth center)

0.1901

28438330

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.6

mag

Diameter

30 - 70*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-10-17

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

1.550799

1-sigma variation

0.000777

Unit

Eccentricity (e)

Value

0.438895

1-sigma variation

0.000294

Unit

Inclination (i)

Value

26.0454

1-sigma variation

0.0102

Unit

Long. of Ascending Node (Ω)

Value

22.4614

1-sigma variation

0.0003

Unit

Arg. of Perihelion (ω)

Value

303.5586

1-sigma variation

0.0091

Unit

Mean Anomaly (M)

Value

39.97944

1-sigma variation

0.03614

Unit

Perihelion distance

Value

0.870160

1-sigma variation

Unit

Aphelion distance

Value

2.231438

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.010369

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.649293

1-sigma variation

Unit

MOID

Value

0.008475

1-sigma variation

Unit

Orbit Period

Value

705.3940

1-sigma variation

Unit

U parameter

Value

7.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	6.04169E-7	2.28322E-7	7.93059E-6	-2.19753E-7	7.01415E-6	-2.80870E-5
e	2.28322E-7	8.62915E-8	2.99757E-6	-8.30219E-8	2.64886E-6	-1.06139E-5
i	7.93059E-6	2.99757E-6	1.04148E-4	-2.88245E-6	9.19184E-5	-3.68643E-4
Ω	-2.19753E-7	-8.30219E-8	-2.88245E-6	8.00533E-8	-2.55862E-6	1.02179E-5
ω	7.01415E-6	2.64886E-6	9.19184E-5	-2.55862E-6	8.19764E-5	-3.26216E-4
M	-2.80870E-5	-1.06139E-5	-3.68643E-4	1.02179E-5	-3.26216E-4	1.30576E-3

Date of computation: 2025-10-19 13:53 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

24.59

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

30 - 70*

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

0.665117

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-10-17.16791

Unit

Source

[2]

Last Observation

Value

2025-10-18.92286

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

131 (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 2025UP 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
MARS	1955-12-27 02:35	> 1 w	0.0373643	0.0338168	0.3382694
EARTH	1973-10-16 13:35	> 1 w	0.0246082	0.0090990	0.1911130
EARTH	2025-10-15 22:53	< 1 s	0.0141061	0.0140870	0.0000064
EARTH	2054-10-03 12:17	> 1 w	0.1900985	0.0126935	0.1402276
EARTH	2081-10-16 17:06	> 1 w	0.0253257	0.0071226	0.2248874
EARTH	2110-10-23 01:19	> 1 mo	0.1200679	0.0021109	2.3719137

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
36.59412066	281.54894377	0.00847477	MINIMUM
300.40970301	136.13216435	0.36117350	MINIMUM
338.43112103	190.97889059	0.44696800	SADDLE
171.73810187	41.86802668	1.36745687	SADDLE
353.51589037	37.39067064	1.82161959	SADDLE
182.94742813	229.13169519	3.19613659	MAXIMUM

Download:

MOID Plots

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