Asteroids

2025RM1 help

Last update: 2025-09-07 13:15 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.958

Aphelion (Q)

2.312

Eccentricity (e)

0.414

Inclination (i)

16.7

deg

Orbit period (P)

763.5

Earth MOID

0.00058

U parameter

7.8

Next Earth close approach

Date

2048-09-02

Nominal distance (from Earth center)

0.01068

1597154

Maximum Brightness

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

24.6

mag

Diameter

30 - 70*

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

1.634833

1-sigma variation

0.001425

Unit

Eccentricity (e)

Value

0.414047

1-sigma variation

0.000534

Unit

Inclination (i)

Value

16.7356

1-sigma variation

0.0139

Unit

Long. of Ascending Node (Ω)

Value

161.2178

1-sigma variation

0.0003

Unit

Arg. of Perihelion (ω)

Value

145.9305

1-sigma variation

0.0030

Unit

Mean Anomaly (M)

Value

50.18465

1-sigma variation

0.06956

Unit

Perihelion distance

Value

0.957935

1-sigma variation

Unit

Aphelion distance

Value

2.311731

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.069753

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.000686

1-sigma variation

Unit

MOID

Value

0.000577

1-sigma variation

Unit

Orbit Period

Value

763.4991

1-sigma variation

Unit

U parameter

Value

7.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.03123E-6	7.60998E-7	1.97972E-5	-3.29583E-7	4.12323E-6	-9.91335E-5
e	7.60998E-7	2.85109E-7	7.41732E-6	-1.23641E-7	1.54407E-6	-3.71399E-5
i	1.97972E-5	7.41732E-6	1.93050E-4	-3.25970E-6	4.00061E-5	-9.66106E-4
Ω	-3.29583E-7	-1.23641E-7	-3.25970E-6	7.88512E-8	-5.79237E-7	1.60405E-5
ω	4.12323E-6	1.54407E-6	4.00061E-5	-5.79237E-7	8.75017E-6	-2.01413E-4
M	-9.91335E-5	-3.71399E-5	-9.66106E-4	1.60405E-5	-2.01413E-4	4.83826E-3

Date of computation: 2025-09-07 13:15 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

24.617

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

[-]

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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

0.451977

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-09-04.540714

Unit

Source

[2]

Last Observation

Value

2025-09-06.150874

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

14 (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 2025RM1 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	1972-08-22 04:00	> 1 mo	0.0940127	0.0148564	1.1334259
EARTH	1995-09-08 02:49	> 1 w	0.0367563	0.0010650	0.2076978
EARTH	2025-09-03 18:25	< 1 min	0.0006897	0.0006865	0.0000011
EARTH	2048-09-02 11:48	> 1 w	0.0106763	0.0001722	0.1764585
EARTH	2075-09-10 09:56	> 1 mo	0.0662653	0.0044564	16.8164952
EARTH	2100-08-10 15:15	> 1 mo	0.1705819	0.0604676	12.0105587

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
22.35557738	240.83214875	0.00057709	MINIMUM
175.89969468	24.20391009	1.35032461	SADDLE
356.50358125	22.00996215	1.93572522	SADDLE
181.05783529	207.44599979	3.31886158	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out

Level lines of the squared distance function

2025RM1

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS	TS
2048-09-03.575	69322.575	0.060	0.000	1.13 ± 0.001	3.31E3	1.80E-4	3.38E0	-3.16	0


Based on 14 optical observations (of which 0 are rejected as outliers) from 2025/09/04.541 to 2025/09/06.151.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.36 and 1.36 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20250907 132227.677 UTC.

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Download Impactor Table as: