Asteroids

2025RR help

Last update: 2025-09-05 13:15 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.412

Aphelion (Q)

2.331

Eccentricity (e)

0.700

Inclination (i)

11.6

deg

Orbit period (P)

586.7

Earth MOID

0.00654

U parameter

8.9

Next Earth close approach

Date

2025-09-11

Nominal distance (from Earth center)

0.02898

4335104

Maximum Brightness

18.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.4

mag

Diameter

30 - 80*

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

1.371518

1-sigma variation

0.004627

Unit

Eccentricity (e)

Value

0.699778

1-sigma variation

0.001622

Unit

Inclination (i)

Value

11.6397

1-sigma variation

0.0413

Unit

Long. of Ascending Node (Ω)

Value

165.7853

1-sigma variation

0.0041

Unit

Arg. of Perihelion (ω)

Value

297.7603

1-sigma variation

0.0093

Unit

Mean Anomaly (M)

Value

12.24761

1-sigma variation

0.00890

Unit

Perihelion distance

Value

0.411760

1-sigma variation

Unit

Aphelion distance

Value

2.331276

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.465306

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.030291

1-sigma variation

Unit

MOID

Value

0.006545

1-sigma variation

Unit

Orbit Period

Value

586.6791

1-sigma variation

Unit

U parameter

Value

8.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.14096E-5	7.50226E-6	1.90109E-4	-1.82015E-5	8.93886E-6	-4.07882E-5
e	7.50226E-6	2.63218E-6	6.68325E-5	-6.30590E-6	3.65452E-6	-1.43628E-5
i	1.90109E-4	6.68325E-5	1.70244E-3	-1.56896E-4	1.13809E-4	-3.66853E-4
Ω	-1.82015E-5	-6.30590E-6	-1.56896E-4	1.71060E-5	3.90836E-6	3.30965E-5
ω	8.93886E-6	3.65452E-6	1.13809E-4	3.90836E-6	8.70175E-5	-2.82309E-5
M	-4.07882E-5	-1.43628E-5	-3.66853E-4	3.30965E-5	-2.82309E-5	7.92819E-5

Date of computation: 2025-09-05 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

24.423

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 - 80*

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

0.576126

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-09-02.194189

Unit

Source

[2]

Last Observation

Value

2025-09-03.910437

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

28 (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 2025RR 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	1956-09-06 05:41	> 1 w	0.0796525	0.0026686	0.4109470
EARTH	1964-09-12 01:06	> 1 mo	0.0533909	0.0029740	1.9661367
VENUS	1998-06-23 01:17	> 1 mo	0.0274000	0.0202182	1.1584082
EARTH	2008-04-24 01:22	> 1 mo	0.1656940	0.1592765	0.1629315
VENUS	2009-11-12 05:04	> 1 w	0.0342089	0.0335015	0.0913824
EARTH	2016-05-01 09:36	> 1 w	0.1866626	0.1604594	0.1470987
EARTH	2017-09-05 07:55	> 1 w	0.1144981	0.0055244	0.2417281
EARTH	2025-09-11 14:36	6.2	0.0289784	0.0287430	0.0000785
VENUS	2035-05-23 08:58	> 1 w	0.0241297	0.0218431	0.1486413
EARTH	2061-04-24 11:55	> 1 mo	0.1680930	0.1615394	0.6139432
EARTH	2070-09-09 00:03	> 1 mo	0.0455442	0.0092786	2.3647094
EARTH	2078-09-16 06:01	> 1 w	0.1275111	0.0087150	0.7141690
EARTH	2114-04-27 11:07	> 1 mo	0.1650502	0.1636098	0.4704955
VENUS	2122-02-20 08:16	> 1 mo	0.0440412	0.0253675	3.8625796
EARTH	2123-09-10 18:57	> 1 mo	0.0422472	0.0121934	3.5553218

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
292.19230761	247.15043587	0.00654479	MINIMUM
65.38480100	114.27730147	0.16048098	MINIMUM
358.35904701	358.82954091	0.58344289	SADDLE
179.26049385	182.43749881	1.34191896	SADDLE
359.35954128	181.14144102	1.42513665	SADDLE
180.31976513	2.89055151	3.30372906	MAXIMUM

Download:

MOID Plots

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