Asteroids

2025RB help

Last update: 2025-09-02 05:45 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.810

Aphelion (Q)

1.090

Eccentricity (e)

0.147

Inclination (i)

29.4

deg

Orbit period (P)

338.2

Earth MOID

0.04243

U parameter

7.3

Next Earth close approach

Date

2050-02-25

Nominal distance (from Earth center)

0.1645

24608836

Maximum Brightness

33.7

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.6

mag

Diameter

13 - 29*

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

0.950059

1-sigma variation

0.000165

Unit

Eccentricity (e)

Value

0.146974

1-sigma variation

0.000057

Unit

Inclination (i)

Value

29.4124

1-sigma variation

0.0294

Unit

Long. of Ascending Node (Ω)

Value

159.1117

1-sigma variation

8.490E-6

Unit

Arg. of Perihelion (ω)

Value

322.9246

1-sigma variation

0.0563

Unit

Mean Anomaly (M)

Value

313.69616

1-sigma variation

0.04291

Unit

Perihelion distance

Value

0.810425

1-sigma variation

Unit

Aphelion distance

Value

1.089693

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.159441

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.043157

1-sigma variation

Unit

MOID

Value

0.042431

1-sigma variation

Unit

Orbit Period

Value

338.2396

1-sigma variation

Unit

U parameter

Value

7.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.71321E-8	-9.44322E-9	4.84838E-6	1.36311E-9	-9.26791E-6	7.06642E-6
e	-9.44322E-9	3.28995E-9	-1.68738E-6	-4.74952E-10	3.22442E-6	-2.45763E-6
i	4.84838E-6	-1.68738E-6	8.66425E-4	2.43567E-7	-1.65613E-3	1.26273E-3
Ω	1.36311E-9	-4.74952E-10	2.43567E-7	7.20844E-11	-4.65387E-7	3.54682E-7
ω	-9.26791E-6	3.22442E-6	-1.65613E-3	-4.65387E-7	3.16628E-3	-2.41450E-3
M	7.06642E-6	-2.45763E-6	1.26273E-3	3.54682E-7	-2.41450E-3	1.84146E-3

Date of computation: 2025-09-02 05:45 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

26.591

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

13 - 29*

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

0.807088

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-08-27.369381

Unit

Source

[2]

Last Observation

Value

2025-09-02.175129

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

21 (1)

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 2025RB 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	1950-08-31 23:53	710.1	0.1604560	0.0619823	0.0364488
EARTH	1962-03-01 00:03	> 1 d	0.1578466	0.1576085	0.0022302
EARTH	1962-09-02 14:57	139.0	0.0539700	0.0435831	0.0218214
EARTH	1975-09-01 10:58	788.6	0.1565106	0.0525333	0.0417903
EARTH	1987-03-06 15:23	> 1 d	0.1643645	0.1588099	0.0120660
EARTH	1987-09-02 23:52	81.7	0.1035063	0.0475749	0.0371291
EARTH	2000-02-21 14:03	> 1 d	0.1843273	0.1638572	0.0171060
EARTH	2000-09-01 19:52	359.7	0.0670769	0.0446137	0.0246131
EARTH	2012-09-01 22:39	184.8	0.1938944	0.1420339	0.0176464
EARTH	2025-02-26 05:58	156.1	0.1622590	0.1622508	0.0000030
EARTH	2025-09-02 10:56	< 1 min	0.0433684	0.0432428	0.0000419
EARTH	2050-02-25 20:24	> 1 d	0.1644999	0.1588383	0.0111762
EARTH	2050-09-02 17:43	282.1	0.0439598	0.0437832	0.0035853
EARTH	2063-09-01 02:30	> 1 d	0.1978403	0.0535463	0.1011457
EARTH	2075-03-02 19:01	> 1 w	0.1575843	0.1575766	0.0013776
EARTH	2075-09-03 05:47	299.0	0.0656179	0.0450246	0.1072369
EARTH	2088-09-01 15:35	> 1 d	0.1076238	0.0468829	0.1660625
EARTH	2100-03-11 21:22	> 1 w	0.1862522	0.1639191	0.0911016
EARTH	2100-09-03 09:44	1031.5	0.1520284	0.0534748	0.1597037
EARTH	2113-02-23 09:40	> 1 w	0.1782317	0.1623672	0.0565865
EARTH	2113-09-03 10:28	1216.9	0.0594654	0.0434914	0.0821854
EARTH	2125-03-12 02:07	> 1 w	0.1858674	0.1638027	0.0524858
EARTH	2125-09-03 17:25	592.4	0.1471575	0.0519601	0.0930496

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
223.48175409	239.38909402	0.04243087	MINIMUM
34.55133318	59.04551996	0.15820966	MINIMUM
313.06438448	327.91274321	0.48427070	SADDLE
124.17009020	151.65218065	0.51789381	SADDLE
335.46367746	175.65778351	1.79264849	SADDLE
198.89282950	40.13397944	2.06178884	MAXIMUM

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MOID Plots

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