Asteroids

2025PU1 help

Last update: 2025-08-14 12:00 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.866

Aphelion (Q)

1.596

Eccentricity (e)

0.297

Inclination (i)

3.7

deg

Orbit period (P)

498.7

Earth MOID

0.00047

U parameter

6.2

Next Earth close approach

Date

2036-04-04

Nominal distance (from Earth center)

0.08255

12349348

Maximum Brightness

29.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

31.4

mag

Diameter

1.4 - 3*

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

1.230666

1-sigma variation

0.000066

Unit

Eccentricity (e)

Value

0.296540

1-sigma variation

0.000049

Unit

Inclination (i)

Value

3.7319

1-sigma variation

0.0009

Unit

Long. of Ascending Node (Ω)

Value

320.7076

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

291.5832

1-sigma variation

0.0013

Unit

Mean Anomaly (M)

Value

111.37323

1-sigma variation

0.01108

Unit

Perihelion distance

Value

0.865725

1-sigma variation

Unit

Aphelion distance

Value

1.595608

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.001943

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.272345

1-sigma variation

Unit

MOID

Value

0.000473

1-sigma variation

Unit

Orbit Period

Value

498.6650

1-sigma variation

Unit

U parameter

Value

6.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.41184E-9	3.27563E-9	5.64560E-8	7.92594E-9	8.20930E-8	-7.35782E-7
e	3.27563E-9	2.43445E-9	4.19559E-8	5.88673E-9	6.04057E-8	-5.46117E-7
i	5.64560E-8	4.19559E-8	7.33615E-7	1.03864E-7	1.03984E-6	-9.41307E-6
Ω	7.92594E-9	5.88673E-9	1.03864E-7	1.48656E-8	1.46583E-7	-1.32184E-6
ω	8.20930E-8	6.04057E-8	1.03984E-6	1.46583E-7	1.65056E-6	-1.37300E-5
M	-7.35782E-7	-5.46117E-7	-9.41307E-6	-1.32184E-6	-1.37300E-5	1.22722E-4

Date of computation: 2025-08-14 12:00 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

31.402

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

1.4 - 3*

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

0.2

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.539035

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-08-13.997017

Unit

Source

[2]

Last Observation

Value

2025-08-14.152807

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

35 (3)

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 2025PU1 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	1952-06-28 23:39	> 1 w	0.1380735	0.1178048	0.0073015
EARTH	1955-05-23 17:38	> 1 w	0.1513136	0.1474706	0.0022222
EARTH	1958-04-19 09:20	> 1 d	0.1293617	0.1293260	0.0002905
EARTH	1961-04-10 21:05	1309.8	0.1660891	0.1380282	0.0116071
EARTH	2022-08-22 11:15	156.4	0.0925045	0.0877796	0.0015750
EARTH	2025-08-13 19:42	< 1 min	0.0001957	0.0001957	0.0000000
EARTH	2036-04-04 10:30	> 1 d	0.0825503	0.0703949	0.0042136
EARTH	2040-08-22 15:48	545.0	0.1250130	0.1041115	0.0069674
EARTH	2051-05-31 04:58	> 1 d	0.1582810	0.1571335	0.0003925
EARTH	2062-03-16 00:27	427.5	0.1806557	0.1602902	0.0068181
EARTH	2066-07-24 22:34	> 1 d	0.0998340	0.0870535	0.0042652
EARTH	2077-03-24 09:29	36.0	0.0540749	0.0532295	0.0002889
EARTH	2081-08-14 07:14	213.5	0.0017550	0.0010719	0.0012213
EARTH	2098-05-10 18:05	> 1 mo	0.1318507	0.0587881	0.3277849
EARTH	2105-08-16 00:14	> 1 mo	0.0078848	0.0013322	1.0661903
EARTH	2115-08-01 00:39	> 1 mo	0.0787592	0.0069666	64.0508955
EARTH	2125-06-22 07:08	> 1 mo	0.1415164	0.0831308	19.7265748

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
53.56283449	220.46325008	0.00047267	MINIMUM
308.01223723	82.93931429	0.04637491	MINIMUM
0.04895187	150.52390159	0.16059303	SADDLE
180.49190542	331.68446234	0.61468404	SADDLE
1.52252087	332.58009563	1.85045459	SADDLE
181.05948515	152.10804482	2.61051980	MAXIMUM

Download:

MOID Plots

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