Asteroids

2026BU2 help

Last update: 2026-01-22 13:00 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.914

Aphelion (Q)

2.084

Eccentricity (e)

0.390

Inclination (i)

4.7

deg

Orbit period (P)

670.3

Earth MOID

0.02777

U parameter

8.4

Next Earth close approach

Date

2026-02-09

Nominal distance (from Earth center)

0.0416

6223755

Maximum Brightness

21.2

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.2

mag

Diameter

24 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-01-18

Observatory

Pan-STARRS 2, 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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.498957

1-sigma variation

0.002461

Unit

Eccentricity (e)

Value

0.390124

1-sigma variation

0.001104

Unit

Inclination (i)

Value

4.7049

1-sigma variation

0.0095

Unit

Long. of Ascending Node (Ω)

Value

344.2374

1-sigma variation

0.0362

Unit

Arg. of Perihelion (ω)

Value

201.2477

1-sigma variation

0.0458

Unit

Mean Anomaly (M)

Value

298.17288

1-sigma variation

0.16045

Unit

Perihelion distance

Value

0.914178

1-sigma variation

Unit

Aphelion distance

Value

2.083736

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.988451

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.060791

1-sigma variation

Unit

MOID

Value

0.027775

1-sigma variation

Unit

Orbit Period

Value

670.3200

1-sigma variation

Unit

U parameter

Value

8.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	6.05414E-6	2.71298E-6	2.26448E-5	4.95604E-5	-3.18303E-5	3.94717E-4
e	2.71298E-6	1.21979E-6	1.02910E-5	2.02964E-5	-1.14699E-5	1.76676E-4
i	2.26448E-5	1.02910E-5	8.97988E-5	1.17390E-4	-1.98425E-5	1.46914E-3
Ω	4.95604E-5	2.02964E-5	1.17390E-4	1.31278E-3	-1.58385E-3	3.32782E-3
ω	-3.18303E-5	-1.14699E-5	-1.98425E-5	-1.58385E-3	2.09888E-3	-2.21649E-3
M	3.94717E-4	1.76676E-4	1.46914E-3	3.32782E-3	-2.21649E-3	2.57451E-2

Date of computation: 2026-01-22 13:00 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

25.182

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

24 - 50*

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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.497977

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-01-18.43102

Unit

Source

[2]

Last Observation

Value

2026-01-22.10165

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

14 (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 2026BU2 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
EARTH	1958-04-26 05:37	> 1 mo	0.0839517	0.0794074	0.0222280
EARTH	1969-05-15 17:54	> 1 w	0.0814865	0.0768668	0.0346142
EARTH	1980-05-30 20:51	> 1 w	0.1928256	0.0816890	0.1665412
EARTH	2015-02-03 05:25	> 1 w	0.0976091	0.0313575	0.1599154
EARTH	2026-02-09 20:58	11.6	0.0416032	0.0412733	0.0001100
EARTH	2037-02-03 06:54	> 1 w	0.0941811	0.0309191	0.1594926
EARTH	2079-05-26 17:29	> 1 w	0.1269189	0.0796333	0.1169778
EARTH	2090-05-15 08:27	> 1 w	0.0788446	0.0772074	0.0124832
EARTH	2101-05-04 18:03	> 1 w	0.0812240	0.0787874	0.0055736
EARTH	2112-04-21 17:02	> 1 d	0.0897327	0.0892116	0.0002162
EARTH	2123-04-07 21:01	> 1 w	0.0931590	0.0928153	0.0001790

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
332.94874924	43.62359024	0.02777464	MINIMUM
30.64457621	128.26474130	0.07704402	MINIMUM
7.71427763	94.63861224	0.09319330	SADDLE
181.41272779	265.52270875	1.08235423	SADDLE
2.73855219	267.15341402	1.91595294	SADDLE
181.01296745	85.25698782	3.08253226	MAXIMUM

Download:

MOID Plots

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