Asteroids

2025JW1 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.663

Aphelion (Q)

1.312

Eccentricity (e)

0.329

Inclination (i)

13.7

deg

Orbit period (P)

358.3

Earth MOID

0.00639

U parameter

6.9

Next Earth close approach

Date

2026-05-06

Nominal distance (from Earth center)

0.11907

17812428

Maximum Brightness

24.7

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

17 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-05-05

Observatory

MAPS, San Pedro de Atacama

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

0.987187

1-sigma variation

0.000103

Unit

Eccentricity (e)

Value

0.328692

1-sigma variation

0.000195

Unit

Inclination (i)

Value

13.7064

1-sigma variation

0.0097

Unit

Long. of Ascending Node (Ω)

Value

48.2140

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

295.0117

1-sigma variation

0.0080

Unit

Mean Anomaly (M)

Value

119.80854

1-sigma variation

0.00205

Unit

Perihelion distance

Value

0.662706

1-sigma variation

Unit

Aphelion distance

Value

1.311668

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.217218

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.011671

1-sigma variation

Unit

MOID

Value

0.006392

1-sigma variation

Unit

Orbit Period

Value

358.2594

1-sigma variation

Unit

U parameter

Value

6.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.06960E-8	2.01544E-8	1.00593E-6	2.42942E-8	-8.27198E-7	2.11100E-7
e	2.01544E-8	3.79824E-8	1.89561E-6	4.57878E-8	-1.55844E-6	3.98185E-7
i	1.00593E-6	1.89561E-6	9.46107E-5	2.28501E-6	-7.77891E-5	1.98637E-5
Ω	2.42942E-8	4.57878E-8	2.28501E-6	5.52083E-8	-1.87841E-6	4.80238E-7
ω	-8.27198E-7	-1.55844E-6	-7.77891E-5	-1.87841E-6	6.39841E-5	-1.63081E-5
M	2.11100E-7	3.98185E-7	1.98637E-5	4.80238E-7	-1.63081E-5	4.19605E-6

Date of computation: 2025-09-10 00:30 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

25.993

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

17 - 40*

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

140

Unit

Source

[1]

Normalized RMS of residuals

Value

0.535627

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-05-05.25271

Unit

Source

[2]

Last Observation

Value

2025-05-09.98506

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

45 (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 2025JW1 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	1953-12-13 23:51	> 1 w	0.1462659	0.1367115	0.1090921
VENUS	1954-11-06 08:09	> 1 w	0.0282151	0.0146541	0.3453085
EARTH	1954-12-04 07:03	> 1 mo	0.1468609	0.1381470	0.1189894
VENUS	1959-10-05 23:36	> 1 w	0.0215326	0.0146308	0.1460760
EARTH	1965-05-11 14:58	71.1	0.1173347	0.0787542	0.0128634
EARTH	1966-05-10 22:27	> 1 d	0.0128319	0.0067271	0.0372885
EARTH	1967-05-08 11:19	> 1 d	0.0808656	0.0071028	0.0467585
EARTH	1968-05-04 07:38	> 1 d	0.1749949	0.0322794	0.0477289
EARTH	2011-12-20 07:27	988.3	0.1968740	0.1725888	0.0088255
EARTH	2012-12-12 08:37	1247.8	0.1410289	0.1366196	0.0029543
EARTH	2013-12-02 18:38	> 1 d	0.1503327	0.1406608	0.0043387
EARTH	2024-05-11 11:03	13.6	0.1001028	0.0973928	0.0009034
EARTH	2025-05-10 07:34	< 1 s	0.0077785	0.0077632	0.0000051
EARTH	2026-05-06 21:53	43.2	0.1190687	0.1162871	0.0009273
VENUS	2035-06-11 08:44	873.2	0.0477230	0.0200024	0.0097150
EARTH	2064-12-14 23:46	> 1 d	0.1510509	0.1399582	0.0059642
EARTH	2065-12-04 18:59	> 1 d	0.1480736	0.1395377	0.0054338
VENUS	2071-09-25 20:37	> 1 d	0.0224180	0.0124185	0.0185542
EARTH	2075-05-10 13:16	56.8	0.1604012	0.1586961	0.0005737
EARTH	2076-05-11 15:13	220.1	0.0597812	0.0427444	0.0056815
VENUS	2076-08-22 10:19	1258.4	0.0403989	0.0189486	0.0075039
EARTH	2077-05-09 11:08	544.0	0.0452809	0.0188544	0.0093170
EARTH	2078-05-05 23:53	734.1	0.1542180	0.1176573	0.0122041
VENUS	2112-12-16 11:23	> 1 d	0.0463770	0.0107882	0.0860771
VENUS	2117-11-11 19:20	> 1 d	0.0367565	0.0098108	0.0188578
EARTH	2117-12-15 00:22	> 1 d	0.1454206	0.1382372	0.0054496
EARTH	2118-12-04 14:04	479.0	0.1540848	0.1526999	0.0005403

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
265.55544928	126.64390004	0.00725994	MINIMUM
75.56914792	335.31473981	0.13574669	MINIMUM
350.38759851	228.63728403	0.39267221	SADDLE
170.42929069	53.78834216	0.41055265	SADDLE
354.91197927	55.21552394	1.64596759	SADDLE
179.76313433	240.52859178	2.30673835	MAXIMUM

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MOID Plots

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