Asteroids

2026BW5 help

Last update: 2026-01-26 18:45 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.926

Aphelion (Q)

1.553

Eccentricity (e)

0.253

Inclination (i)

4.5

deg

Orbit period (P)

503.9

Earth MOID

0.00622

U parameter

7.2

Next Earth close approach

Date

2041-05-04

Nominal distance (from Earth center)

0.07905

11826351

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

29.2

mag

Diameter

4 - 9*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-01-18

Observatory

Kitt Peak-Bok

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

1.239321

1-sigma variation

0.000269

Unit

Eccentricity (e)

Value

0.252943

1-sigma variation

0.000197

Unit

Inclination (i)

Value

4.4941

1-sigma variation

0.0031

Unit

Long. of Ascending Node (Ω)

Value

301.2452

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

230.5740

1-sigma variation

0.0028

Unit

Mean Anomaly (M)

Value

285.39169

1-sigma variation

0.02605

Unit

Perihelion distance

Value

0.925843

1-sigma variation

Unit

Aphelion distance

Value

1.552799

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.365127

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.014833

1-sigma variation

Unit

MOID

Value

0.006217

1-sigma variation

Unit

Orbit Period

Value

503.9347

1-sigma variation

Unit

U parameter

Value

7.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	7.25904E-8	5.30639E-8	8.40743E-7	4.33696E-8	7.22507E-7	7.01751E-6
e	5.30639E-8	3.87941E-8	6.14642E-7	3.16740E-8	5.29578E-7	5.12918E-6
i	8.40743E-7	6.14642E-7	9.73925E-6	5.01646E-7	8.38784E-6	8.12679E-5
Ω	4.33696E-8	3.16740E-8	5.01646E-7	2.64065E-8	4.21415E-7	4.19722E-6
ω	7.22507E-7	5.29578E-7	8.38784E-6	4.21415E-7	7.68492E-6	6.96185E-5
M	7.01751E-6	5.12918E-6	8.12679E-5	4.19722E-6	6.96185E-5	6.78507E-4

Date of computation: 2026-01-26 18:45 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

29.176

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

4 - 9*

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

0.655574

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-01-14.281426

Unit

Source

[2]

Last Observation

Value

2026-01-21.06599

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

17 (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 2026BW5 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	1950-05-13 15:35	> 1 mo	0.0878093	0.0770168	0.2593746
EARTH	1968-02-07 21:27	> 1 mo	0.0495318	0.0007741	0.3105605
EARTH	1986-01-21 09:01	> 1 d	0.0339919	0.0050687	0.0418051
EARTH	1997-04-02 03:51	> 1 w	0.0946444	0.0930703	0.0029073
EARTH	2008-05-20 09:33	> 1 d	0.1421779	0.0788470	0.0280354
EARTH	2026-01-24 16:14	< 1 min	0.0101413	0.0101189	0.0000075
EARTH	2041-05-04 13:20	> 1 w	0.0790543	0.0746486	0.0085874
EARTH	2052-01-15 01:26	> 1 d	0.1212761	0.0025622	0.0738789
EARTH	2067-02-25 21:13	> 1 mo	0.0800083	0.0268618	0.0301025
EARTH	2082-05-21 08:27	998.6	0.1165733	0.0877425	0.0110407
EARTH	2093-02-02 05:59	> 1 w	0.0365070	0.0049967	0.0548941
EARTH	2104-01-13 17:49	> 1 d	0.1610323	0.0015190	0.1429382
EARTH	2119-05-17 13:19	> 1 mo	0.0818535	0.0737921	0.1375402

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
323.39158416	23.71915707	0.00621702	MINIMUM
45.09006870	126.29885639	0.07639523	MINIMUM
12.23101179	85.18678497	0.09607252	SADDLE
183.52670086	253.76805892	0.55217215	SADDLE
4.30639751	254.96449521	1.93076013	SADDLE
182.06584467	72.62869964	2.54689710	MAXIMUM

Download:

MOID Plots

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