Asteroids

2025BR2 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.733

Aphelion (Q)

2.361

Eccentricity (e)

0.526

Inclination (i)

3.2

deg

Orbit period (P)

702.7

Earth MOID

0.01128

U parameter

9.0

Next Earth close approach

Date

2046-07-11

Nominal distance (from Earth center)

0.09854

14741320

Maximum Brightness

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

2025-01-20

Observatory

Kitt Peak-Bok

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

1.546781

1-sigma variation

0.008897

Unit

Eccentricity (e)

Value

0.526360

1-sigma variation

0.003590

Unit

Inclination (i)

Value

3.2470

1-sigma variation

0.0185

Unit

Long. of Ascending Node (Ω)

Value

320.4956

1-sigma variation

0.0019

Unit

Arg. of Perihelion (ω)

Value

243.4507

1-sigma variation

0.0262

Unit

Mean Anomaly (M)

Value

126.18690

1-sigma variation

1.03835

Unit

Perihelion distance

Value

0.732617

1-sigma variation

Unit

Aphelion distance

Value

2.360946

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.448568

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.082237

1-sigma variation

Unit

MOID

Value

0.011279

1-sigma variation

Unit

Orbit Period

Value

702.6545

1-sigma variation

Unit

U parameter

Value

9.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	7.91560E-5	3.19378E-5	1.64170E-4	-1.61628E-5	2.33129E-4	-9.23814E-3
e	3.19378E-5	1.28863E-5	6.62390E-5	-6.51799E-6	9.40659E-5	-3.72740E-3
i	1.64170E-4	6.62390E-5	3.40491E-4	-3.35477E-5	4.83505E-4	-1.91599E-2
Ω	-1.61628E-5	-6.51799E-6	-3.35477E-5	3.71980E-6	-4.73182E-5	1.88623E-3
ω	2.33129E-4	9.40659E-5	4.83505E-4	-4.73182E-5	6.86998E-4	-2.72081E-2
M	-9.23814E-3	-3.72740E-3	-1.91599E-2	1.88623E-3	-2.72081E-2	1.07817E0

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

26.021

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

274

Unit

Source

[1]

Normalized RMS of residuals

Value

0.307249

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-01-20.329195

Unit

Source

[2]

Last Observation

Value

2025-01-28.79227

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

22 (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 2025BR2 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	1952-01-17 13:58	> 1 mo	0.1962104	0.0156752	1.6526301
MARS	1967-11-01 22:43	> 1 mo	0.0357596	0.0357226	0.0659380
EARTH	1973-06-22 14:49	> 1 mo	0.1289208	0.0353059	1.6234038
EARTH	1977-01-22 13:42	> 1 mo	0.0974356	0.0131934	1.7728669
EARTH	2021-07-07 05:33	> 1 w	0.0423741	0.0350298	0.1177752
EARTH	2025-01-31 13:42	< 1 min	0.0345675	0.0338829	0.0002282
EARTH	2046-07-11 20:12	> 1 mo	0.0985396	0.0344479	0.9299047
EARTH	2050-02-15 00:06	> 1 mo	0.1442507	0.0167228	0.8826693
EARTH	2077-01-18 12:14	> 1 mo	0.1894248	0.0116821	0.9156039
EARTH	2098-06-29 03:52	> 1 mo	0.0911065	0.0327964	0.8069244
EARTH	2102-01-28 00:09	> 1 mo	0.0460758	0.0096862	0.7463382
MARS	2105-09-24 09:27	844.0	0.0454055	0.0452913	0.0017682
EARTH	2123-06-23 13:57	> 1 mo	0.1405161	0.0310448	2.5896074

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
313.75071672	26.37394328	0.01126491	MINIMUM
49.58091298	181.10780101	0.03505448	MINIMUM
2.41211958	104.77941788	0.27444200	SADDLE
180.70771834	282.46738173	1.36697530	SADDLE
2.05629903	284.14668264	1.72838251	SADDLE
180.59256914	102.40597801	3.36353285	MAXIMUM

Download:

MOID Plots

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