Asteroids

2025PW1 help

Last update: 2025-08-16 12:45 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.723

Aphelion (Q)

1.292

Eccentricity (e)

0.283

Inclination (i)

3.4

deg

Orbit period (P)

369.2

Earth MOID

0.00141

U parameter

6.1

Next Earth close approach

Date

2026-08-17

Nominal distance (from Earth center)

0.06468

9675687

Maximum Brightness

24.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.7

mag

Diameter

8 - 17*

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

1.007178

1-sigma variation

0.000035

Unit

Eccentricity (e)

Value

0.282548

1-sigma variation

0.000067

Unit

Inclination (i)

Value

3.4460

1-sigma variation

0.0008

Unit

Long. of Ascending Node (Ω)

Value

143.8160

1-sigma variation

0.0003

Unit

Arg. of Perihelion (ω)

Value

286.2959

1-sigma variation

0.0039

Unit

Mean Anomaly (M)

Value

20.15713

1-sigma variation

0.00611

Unit

Perihelion distance

Value

0.722602

1-sigma variation

Unit

Aphelion distance

Value

1.291754

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.129352

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.006778

1-sigma variation

Unit

MOID

Value

0.001413

1-sigma variation

Unit

Orbit Period

Value

369.1967

1-sigma variation

Unit

U parameter

Value

6.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.21531E-9	2.10551E-9	1.73465E-8	4.87737E-9	-1.20629E-7	2.03075E-7
e	2.10551E-9	4.53777E-9	4.90790E-8	7.52227E-10	-1.52566E-7	4.07096E-7
i	1.73465E-8	4.90790E-8	6.66569E-7	-1.02631E-7	-5.08399E-7	4.08060E-6
Ω	4.87737E-9	7.52227E-10	-1.02631E-7	9.14312E-8	-9.76917E-7	3.36492E-7
ω	-1.20629E-7	-1.52566E-7	-5.08399E-7	-9.76917E-7	1.55549E-5	-1.66525E-5
M	2.03075E-7	4.07096E-7	4.08060E-6	3.36492E-7	-1.66525E-5	3.73658E-5

Date of computation: 2025-08-16 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

27.741

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

8 - 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

0.6

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.582376

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-08-14.357962

Unit

Source

[2]

Last Observation

Value

2025-08-14.942488

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

75 (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 2025PW1 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	1950-03-09 03:37	783.5	0.0660320	0.0305295	0.0125285
EARTH	1971-08-07 11:33	97.6	0.1901298	0.1829896	0.0023801
EARTH	1972-08-16 12:26	4.2	0.0419320	0.0392121	0.0009067
EARTH	1976-01-18 16:31	> 1 d	0.1945082	0.1876476	0.0022918
EARTH	1977-03-07 05:01	361.0	0.0347045	0.0216731	0.0051920
VENUS	1980-01-28 22:16	> 1 d	0.0378518	0.0253825	0.0053744
EARTH	1998-08-12 23:51	56.7	0.0724406	0.0704573	0.0006611
EARTH	1999-08-03 17:14	489.9	0.1670378	0.1643684	0.0008898
EARTH	1999-09-16 23:32	848.6	0.1692615	0.1668885	0.0007912
EARTH	2003-03-03 19:13	111.9	0.0746230	0.0673084	0.0024477
EARTH	2004-03-13 19:40	142.3	0.1744508	0.1663273	0.0027088
EARTH	2025-08-15 14:34	< 1 min	0.0018513	0.0018499	0.0000005
EARTH	2026-08-17 07:06	4.0	0.0646780	0.0637112	0.0003223
EARTH	2027-08-11 08:58	157.4	0.1329866	0.1312604	0.0005754
EARTH	2028-07-22 13:02	446.6	0.1895426	0.1877447	0.0005993
EARTH	2028-09-28 13:10	740.3	0.1972685	0.1956589	0.0005366
EARTH	2038-02-11 13:25	> 1 d	0.1665707	0.1596617	0.0023102
EARTH	2038-03-26 11:49	> 1 d	0.1649839	0.1577584	0.0024090
EARTH	2039-03-10 01:20	51.5	0.0944470	0.0856657	0.0029430
EARTH	2040-03-11 17:31	169.1	0.0333908	0.0298875	0.0015282
EARTH	2041-03-14 21:40	227.4	0.0596741	0.0503232	0.0032126
EARTH	2042-03-18 06:53	224.4	0.1272144	0.1161323	0.0037040
VENUS	2055-03-08 03:45	> 1 d	0.0390821	0.0353252	0.0012718
VENUS	2072-05-22 20:12	> 1 d	0.0340362	0.0269579	0.0023855
EARTH	2100-08-09 10:45	16.1	0.1801896	0.1775582	0.0008772
EARTH	2101-08-13 07:56	95.5	0.0943020	0.0910384	0.0010881
EARTH	2102-08-16 18:02	185.2	0.0118687	0.0030554	0.0029975
EARTH	2103-08-18 08:06	104.4	0.0347051	0.0233794	0.0037787
EARTH	2104-08-17 10:28	464.6	0.0912153	0.0631666	0.0093520
EARTH	2105-08-07 02:02	> 1 d	0.1483149	0.1102307	0.0127151
EARTH	2106-07-22 22:18	> 1 w	0.1939878	0.1566123	0.0125001
EARTH	2116-01-28 07:32	> 1 w	0.1991911	0.1296375	0.0246050
EARTH	2117-03-22 03:58	> 1 w	0.1518867	0.0309673	0.0421597
EARTH	2118-03-11 20:19	865.5	0.0902421	0.0306006	0.0459978
EARTH	2119-03-14 04:40	> 1 d	0.0381301	0.0310183	0.0279811
EARTH	2120-03-15 20:51	> 1 d	0.0483966	0.0313995	0.0405564
EARTH	2121-03-18 22:13	> 1 d	0.1077823	0.0321517	0.0522338
EARTH	2122-03-22 12:43	> 1 d	0.1803100	0.0423730	0.0494450

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
268.73547737	221.84450783	0.00141317	MINIMUM
86.36749354	70.71452383	0.02969880	MINIMUM
356.81210619	325.34079833	0.26822267	SADDLE
177.93837729	146.86743284	0.28412533	SADDLE
357.26001600	145.95049446	1.73728705	SADDLE
178.69340447	327.45179724	2.27692918	MAXIMUM

Download:

MOID Plots

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