Asteroids

2025BN help

Last update: 2025-07-29 02:36 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.879

Aphelion (Q)

3.160

Eccentricity (e)

0.565

Inclination (i)

5.6

deg

Orbit period (P)

1048.3

Earth MOID

0.00138

U parameter

6.5

Next Earth close approach

Date

2047-12-24

Nominal distance (from Earth center)

0.09985

14937392

Maximum Brightness

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

26.4

mag

Diameter

14 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-01-19

Observatory

ATLAS-MLO, Mauna Loa

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

2.019587

1-sigma variation

0.000381

Unit

Eccentricity (e)

Value

0.564600

1-sigma variation

0.000088

Unit

Inclination (i)

Value

5.6256

1-sigma variation

0.0007

Unit

Long. of Ascending Node (Ω)

Value

119.7386

1-sigma variation

3.206E-5

Unit

Arg. of Perihelion (ω)

Value

313.8723

1-sigma variation

0.0003

Unit

Mean Anomaly (M)

Value

47.64691

1-sigma variation

0.01383

Unit

Perihelion distance

Value

0.879328

1-sigma variation

Unit

Aphelion distance

Value

3.159846

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.004267

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.245856

1-sigma variation

Unit

MOID

Value

0.001383

1-sigma variation

Unit

Orbit Period

Value

1048.3163

1-sigma variation

Unit

U parameter

Value

6.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.44988E-7	3.34928E-8	2.60258E-7	1.21822E-8	-1.30866E-7	-5.26684E-6
e	3.34928E-8	7.73695E-9	6.01208E-8	2.81416E-9	-3.02321E-8	-1.21666E-6
i	2.60258E-7	6.01208E-8	4.67311E-7	2.18796E-8	-2.35149E-7	-9.45407E-6
Ω	1.21822E-8	2.81416E-9	2.18796E-8	1.02792E-9	-1.10121E-8	-4.42529E-7
ω	-1.30866E-7	-3.02321E-8	-2.35149E-7	-1.10121E-8	1.18989E-7	4.75364E-6
M	-5.26684E-6	-1.21666E-6	-9.45407E-6	-4.42529E-7	4.75364E-6	1.91323E-4

Date of computation: 2025-07-29 02:36 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

26.353

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

14 - 30*

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

203

Unit

Source

[1]

Normalized RMS of residuals

Value

0.542529

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-01-19.554793

Unit

Source

[2]

Last Observation

Value

2025-02-09.53204

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

120 (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 2025BN 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	1971-12-28 09:28	> 1 w	0.0970637	0.0214649	0.0486035
EARTH	1974-10-15 05:15	> 1 w	0.1017195	0.0925398	0.0328579
EARTH	2025-01-18 20:24	< 1 s	0.0021607	0.0021598	0.0000003
EARTH	2047-12-24 03:26	> 1 w	0.0998503	0.0473780	0.0184850
EARTH	2070-12-04 20:16	> 1 w	0.1212948	0.1107405	0.0053886
EARTH	2093-10-12 23:21	> 1 d	0.1213791	0.0996663	0.0139010
EARTH	2113-12-28 07:38	43.6	0.0981993	0.0979282	0.0000904

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
24.83295345	16.42058536	0.00138312	MINIMUM
334.31886338	285.53641146	0.09745935	MINIMUM
355.30035606	323.24196013	0.12800020	SADDLE
358.99923881	150.15860816	1.89232204	SADDLE
179.59894462	151.16079630	2.14930722	SADDLE
179.89126220	331.31983674	4.14357261	MAXIMUM

Download:

MOID Plots

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

Level lines of the squared distance function

2025BN

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS	TS
2105-01-20.074	89914.074	3.096	0.000	0.34 ± 0.000	2.11E5	4.25E-8	3.01E-1	-8.17	0


Based on 120 optical observations (of which 1 are rejected as outliers) from 2025/01/19.555 to 2025/02/09.532.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.39 and 1.39 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 4.0, Date of computation=20250805 130500.123 UTC.

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Download Impactor Table as: