Asteroids

2025BK3 help

Last update: 2025-11-24 16:53 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

1.009

Aphelion (Q)

1.715

Eccentricity (e)

0.259

Inclination (i)

2.0

deg

Orbit period (P)

580.9

Earth MOID

0.02426

U parameter

7.5

Next Earth close approach

Date

2052-03-22

Nominal distance (from Earth center)

0.16282

24356967

Maximum Brightness

26.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.7

mag

Diameter

8 - 17*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-01-24

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

1.362485

1-sigma variation

0.000608

Unit

Eccentricity (e)

Value

0.259094

1-sigma variation

0.000311

Unit

Inclination (i)

Value

2.0253

1-sigma variation

0.0022

Unit

Long. of Ascending Node (Ω)

Value

304.7686

1-sigma variation

0.0011

Unit

Arg. of Perihelion (ω)

Value

198.3480

1-sigma variation

0.0018

Unit

Mean Anomaly (M)

Value

175.52408

1-sigma variation

0.11836

Unit

Perihelion distance

Value

1.009473

1-sigma variation

Unit

Aphelion distance

Value

1.715497

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.669064

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.035134

1-sigma variation

Unit

MOID

Value

0.024261

1-sigma variation

Unit

Orbit Period

Value

580.8929

1-sigma variation

Unit

U parameter

Value

7.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.69252E-7	1.89192E-7	1.34440E-6	6.89444E-7	1.09621E-6	-7.19195E-5
e	1.89192E-7	9.69351E-8	6.88822E-7	3.53247E-7	5.61672E-7	-3.68490E-5
i	1.34440E-6	6.88822E-7	4.89490E-6	2.51025E-6	3.99056E-6	-2.61849E-4
Ω	6.89444E-7	3.53247E-7	2.51025E-6	1.28783E-6	2.04605E-6	-1.34284E-4
ω	1.09621E-6	5.61672E-7	3.99056E-6	2.04605E-6	3.29571E-6	-2.13532E-4
M	-7.19195E-5	-3.68490E-5	-2.61849E-4	-1.34284E-4	-2.13532E-4	1.40078E-2

Date of computation: 2025-11-24 16:53 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

27.685

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

8 - 17*

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

397

Unit

Source

[1]

Normalized RMS of residuals

Value

0.519466

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-01-24.326243

Unit

Source

[2]

Last Observation

Value

2025-02-08.53282

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

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2025BK3 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
MARS	1971-05-13 03:04	161.9	0.0284899	0.0089702	0.0195390
EARTH	1974-02-22 16:53	> 1 w	0.0328168	0.0037302	0.0097282
EARTH	1982-01-11 02:49	1105.3	0.1503400	0.1120758	0.0127547
MARS	1992-01-19 20:00	27.4	0.0238474	0.0224223	0.0004833
EARTH	2017-03-11 13:54	> 1 d	0.0815668	0.0172633	0.0287419
EARTH	2025-02-03 11:16	< 1 min	0.0284192	0.0283211	0.0000327
EARTH	2052-03-22 11:33	> 1 d	0.1628163	0.0238318	0.1044970
EARTH	2060-01-20 17:04	> 1 w	0.0803899	0.0076550	0.0904699
MARS	2074-10-24 18:39	> 1 d	0.0205769	0.0056772	0.1208622
EARTH	2087-01-17 16:31	> 1 w	0.1010823	0.0054868	0.1971366
EARTH	2106-03-11 03:09	> 1 mo	0.0658443	0.0162885	0.1578780

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
358.96260176	39.82366472	0.02426067	MINIMUM
181.62164233	223.44226899	0.70213262	SADDLE
2.64634110	224.54629858	2.02285053	SADDLE
181.42818709	43.28276715	2.70348832	MAXIMUM

Download:

MOID Plots

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