Asteroids

2025BU6 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.962

Aphelion (Q)

3.200

Eccentricity (e)

0.538

Inclination (i)

7.1

deg

Orbit period (P)

1096.3

Earth MOID

0.01664

U parameter

7.7

Next Earth close approach

Date

2028-01-17

Nominal distance (from Earth center)

0.02236

3345726

Maximum Brightness

18.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.6

mag

Diameter

30 - 70*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-01-27

Observatory

Mt. Lemmon Survey

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

2.080762

1-sigma variation

0.002298

Unit

Eccentricity (e)

Value

0.537826

1-sigma variation

0.000519

Unit

Inclination (i)

Value

7.1207

1-sigma variation

0.0054

Unit

Long. of Ascending Node (Ω)

Value

126.2797

1-sigma variation

0.0024

Unit

Arg. of Perihelion (ω)

Value

328.6801

1-sigma variation

0.0030

Unit

Mean Anomaly (M)

Value

107.18285

1-sigma variation

0.17816

Unit

Perihelion distance

Value

0.961675

1-sigma variation

Unit

Aphelion distance

Value

3.199849

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.028148

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.719866

1-sigma variation

Unit

MOID

Value

0.016636

1-sigma variation

Unit

Orbit Period

Value

1096.3065

1-sigma variation

Unit

U parameter

Value

7.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.28267E-6	1.19210E-6	1.23267E-5	5.43349E-6	-6.92506E-6	-4.09473E-4
e	1.19210E-6	2.69013E-7	2.78165E-6	1.22613E-6	-1.56268E-6	-9.24028E-5
i	1.23267E-5	2.78165E-6	2.87878E-5	1.26844E-5	-1.62182E-5	-9.55449E-4
Ω	5.43349E-6	1.22613E-6	1.26844E-5	5.59035E-6	-7.13646E-6	-4.21158E-4
ω	-6.92506E-6	-1.56268E-6	-1.62182E-5	-7.13646E-6	9.22520E-6	5.36722E-4
M	-4.09473E-4	-9.24028E-5	-9.55449E-4	-4.21158E-4	5.36722E-4	3.17393E-2

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

24.615

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

272

Unit

Source

[1]

Normalized RMS of residuals

Value

0.493337

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-01-27.440828

Unit

Source

[2]

Last Observation

Value

2025-02-11.40925

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

38 (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 2025BU6 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	2012-11-14 18:04	> 1 w	0.1742541	0.1079672	0.0810648
EARTH	2015-11-27 03:07	> 1 w	0.1206699	0.0965169	0.0415545
EARTH	2018-12-09 10:58	> 1 w	0.0960573	0.0806251	0.0199704
EARTH	2022-01-03 03:00	> 1 w	0.0572047	0.0085921	0.0167050
EARTH	2025-01-14 02:45	< 1 min	0.0301008	0.0300198	0.0000270
EARTH	2028-01-17 15:26	> 1 d	0.0223648	0.0165180	0.0152460
EARTH	2031-01-09 12:43	> 1 w	0.0437313	0.0077806	0.0483385
EARTH	2034-01-03 10:35	> 1 w	0.0556628	0.0006725	0.0537633
EARTH	2036-12-18 03:03	> 1 w	0.0840979	0.0563037	0.0395111
EARTH	2039-12-01 20:29	> 1 w	0.1153519	0.0902756	0.0455361
EARTH	2042-11-17 05:23	> 1 w	0.1771943	0.1087323	0.0661634

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
14.02474701	17.76756064	0.01653927	MINIMUM
359.46597519	172.07632908	1.97660277	SADDLE
179.65487324	172.68392232	2.18647857	SADDLE
180.08891094	352.92338471	4.18175741	MAXIMUM

Download:

MOID Plots

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