Asteroids

2025RW1 help

Last update: 2025-09-14 12:46 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.712

Aphelion (Q)

1.621

Eccentricity (e)

0.390

Inclination (i)

29.7

deg

Orbit period (P)

460.1

Earth MOID

0.03155

U parameter

7.9

Next Earth close approach

Date

2034-03-06

Nominal distance (from Earth center)

0.04543

6796021

Maximum Brightness

24.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.5

mag

Diameter

30 - 70*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-09-10

Observatory

Palomar Mountain--ZTF

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

1.166301

1-sigma variation

0.000757

Unit

Eccentricity (e)

Value

0.389525

1-sigma variation

0.000418

Unit

Inclination (i)

Value

29.7190

1-sigma variation

0.0296

Unit

Long. of Ascending Node (Ω)

Value

168.9574

1-sigma variation

0.0004

Unit

Arg. of Perihelion (ω)

Value

81.6206

1-sigma variation

0.0407

Unit

Mean Anomaly (M)

Value

108.04961

1-sigma variation

0.13650

Unit

Perihelion distance

Value

0.711998

1-sigma variation

Unit

Aphelion distance

Value

1.620605

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.057818

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.041697

1-sigma variation

Unit

MOID

Value

0.031547

1-sigma variation

Unit

Orbit Period

Value

460.0602

1-sigma variation

Unit

U parameter

Value

7.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.73552E-7	3.16346E-7	2.24082E-5	-3.02103E-7	3.07884E-5	-1.03377E-4
e	3.16346E-7	1.74493E-7	1.23593E-5	-1.66631E-7	1.69804E-5	-5.70181E-5
i	2.24082E-5	1.23593E-5	8.75505E-4	-1.18033E-5	1.20288E-3	-4.03882E-3
Ω	-3.02103E-7	-1.66631E-7	-1.18033E-5	1.59138E-7	-1.62165E-5	5.44509E-5
ω	3.07884E-5	1.69804E-5	1.20288E-3	-1.62165E-5	1.65285E-3	-5.54926E-3
M	-1.03377E-4	-5.70181E-5	-4.03882E-3	5.44509E-5	-5.54926E-3	1.86325E-2

Date of computation: 2025-09-14 12:46 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

24.538

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

0.604333

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-09-10.21948

Unit

Source

[2]

Last Observation

Value

2025-09-14.05165

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

55 (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 2025RW1 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	1957-09-04 06:29	> 1 d	0.1899768	0.0347423	0.0724769
EARTH	1962-09-11 03:43	> 1 d	0.0526066	0.0331399	0.0779373
EARTH	1966-02-25 14:55	> 1 d	0.1977479	0.0530811	0.1093409
EARTH	1971-03-09 15:43	> 1 d	0.0680818	0.0468128	0.0942983
EARTH	1991-09-08 03:17	> 1 d	0.0687288	0.0327328	0.1422340
EARTH	1996-09-15 16:14	> 1 d	0.1771671	0.0301948	0.1494673
EARTH	2000-03-03 18:49	> 1 d	0.0714323	0.0468311	0.1093432
EARTH	2005-03-15 24:00	> 1 d	0.1836280	0.0552241	0.1144018
EARTH	2025-09-09 15:32	< 1 s	0.0320508	0.0319550	0.0000319
EARTH	2034-03-06 18:35	> 1 d	0.0454286	0.0449811	0.0073026
EARTH	2054-09-04 17:49	> 1 d	0.1870028	0.0315808	0.2436312
EARTH	2059-09-11 17:13	> 1 w	0.0523939	0.0312422	0.2301106
EARTH	2063-02-26 09:32	> 1 w	0.1935173	0.0518960	0.2878435
EARTH	2068-03-09 12:38	> 1 w	0.0724815	0.0445495	0.2320494
EARTH	2088-09-08 03:45	> 1 d	0.0531334	0.0309669	0.1452602
EARTH	2093-09-16 23:27	> 1 d	0.1962176	0.0284576	0.1304397
EARTH	2097-03-05 02:59	> 1 d	0.0581056	0.0449733	0.0650110
EARTH	2102-03-18 07:18	> 1 d	0.1990591	0.0603660	0.0503966
EARTH	2122-09-11 10:31	> 1 d	0.0312089	0.0301747	0.0400413

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
72.76296099	246.51185505	0.03154653	MINIMUM
297.50183449	63.83583778	0.04618702	MINIMUM
5.28134592	156.52572065	0.53160845	SADDLE
184.86254191	332.05014202	0.90400802	SADDLE
3.21671682	332.87603841	1.64302357	SADDLE
178.37455135	147.18494450	2.55479939	MAXIMUM

Download:

MOID Plots

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