Asteroids

2025BB2 help

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

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.981

Aphelion (Q)

2.400

Eccentricity (e)

0.420

Inclination (i)

3.8

deg

Orbit period (P)

802.6

Earth MOID

0.00047

U parameter

2.1

Next Earth close approach

Date

2036-01-18

Nominal distance (from Earth center)

0.06334

9475671

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.7

mag

Diameter

19 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2025-01-21

Observatory

Pan-STARRS 1, Haleakala

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

1.690196

1-sigma variation

3.390E-7

Unit

Eccentricity (e)

Value

0.419690

1-sigma variation

1.159E-7

Unit

Inclination (i)

Value

3.8463

1-sigma variation

5.760E-7

Unit

Long. of Ascending Node (Ω)

Value

136.4658

1-sigma variation

6.837E-7

Unit

Arg. of Perihelion (ω)

Value

10.4632

1-sigma variation

3.027E-6

Unit

Mean Anomaly (M)

Value

35.96459

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.980838

1-sigma variation

Unit

Aphelion distance

Value

2.399553

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.000642

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.357339

1-sigma variation

Unit

MOID

Value

0.000466

1-sigma variation

Unit

Orbit Period

Value

802.6087

1-sigma variation

Unit

U parameter

Value

2.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.14941E-13	3.92811E-14	-1.06387E-14	1.19150E-13	-7.40426E-13	-3.36957E-12
e	3.92811E-14	1.34258E-14	-3.29934E-15	4.03803E-14	-2.50615E-13	-1.15232E-12
i	-1.06387E-14	-3.29934E-15	3.31758E-13	-2.73419E-13	7.70363E-13	1.47963E-13
Ω	1.19150E-13	4.03803E-14	-2.73419E-13	4.67447E-13	-1.63476E-12	-3.29675E-12
ω	-7.40426E-13	-2.50615E-13	7.70363E-13	-1.63476E-12	9.16081E-12	2.03999E-11
M	-3.36957E-12	-1.15232E-12	1.47963E-13	-3.29675E-12	2.03999E-11	9.91913E-11

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

25.725

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

19 - 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

204

Unit

Source

[1]

Normalized RMS of residuals

Value

0.653752

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2025-01-21.254873

Unit

Source

[2]

Last Observation

Value

2025-02-09.48202

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

237 (2)

Unit

Source

[1]

Radar Summary

First Observation
Last Observation
Delay (Discarded)
Doppler (Discarded)
Total Optical Observations (Discarded)

Radar

Value

Unit

Source

First Observation

Value

2025-02-03

Unit

Source

[3]

Last Observation

Value

2025-02-03

Unit

Source

[3]

Delay (Discarded)

Value

2 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

2 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

4 (0)

Unit

Source

[1]

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
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 2025BB2 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	1968-03-25 09:28	35.8	0.1164526	0.1158021	0.0002169
EARTH	1984-01-10 16:50	74.2	0.1096238	0.1081653	0.0004864
EARTH	2009-02-14 06:24	13.5	0.0112183	0.0111925	0.0000086
EARTH	2025-02-04 04:37	< 1 s	0.0019482	0.0019482	0.0000000
EARTH	2036-01-18 11:17	4.2	0.0633409	0.0632867	0.0000181
EARTH	2082-03-25 11:44	10.5	0.0964462	0.0962998	0.0000488
EARTH	2093-02-18 21:39	13.3	0.0185355	0.0185080	0.0000092
EARTH	2104-03-03 10:15	44.6	0.0297768	0.0296730	0.0000347
EARTH	2115-04-05 03:04	27.9	0.1753780	0.1746268	0.0002504

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
353.08319597	33.37666296	0.00046646	MINIMUM
180.68165037	225.38308762	1.38823736	SADDLE
1.57036130	226.41939921	1.99213910	SADDLE
180.56132390	45.29954457	3.38785606	MAXIMUM

Download:

MOID Plots

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