Asteroids

2026CB1 help

Last update: 2026-02-10 13:02 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.734

Aphelion (Q)

3.395

Eccentricity (e)

0.644

Inclination (i)

4.1

deg

Orbit period (P)

1083.5

Earth MOID

0.00020

U parameter

7.7

Next Earth close approach

Date

2071-09-08

Nominal distance (from Earth center)

0.18097

27072061

Maximum Brightness

27.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

28.2

mag

Diameter

6 - 14*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-02-06

Observatory

Catalina Sky 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

2.064471

1-sigma variation

0.001767

Unit

Eccentricity (e)

Value

0.644350

1-sigma variation

0.000342

Unit

Inclination (i)

Value

4.0510

1-sigma variation

0.0018

Unit

Long. of Ascending Node (Ω)

Value

135.8460

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

290.1379

1-sigma variation

0.0007

Unit

Mean Anomaly (M)

Value

348.99616

1-sigma variation

0.01137

Unit

Perihelion distance

Value

0.734230

1-sigma variation

Unit

Aphelion distance

Value

3.394712

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.001408

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.537049

1-sigma variation

Unit

MOID

Value

0.000203

1-sigma variation

Unit

Orbit Period

Value

1083.4567

1-sigma variation

Unit

U parameter

Value

7.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.12152E-6	6.03670E-7	3.16980E-6	-1.32898E-7	1.15082E-6	2.00854E-5
e	6.03670E-7	1.16744E-7	6.13012E-7	-2.56987E-8	2.22425E-7	3.88431E-6
i	3.16980E-6	6.13012E-7	3.21952E-6	-1.34763E-7	1.16680E-6	2.03961E-5
Ω	-1.32898E-7	-2.56987E-8	-1.34763E-7	5.75275E-9	-4.97787E-8	-8.55076E-7
ω	1.15082E-6	2.22425E-7	1.16680E-6	-4.97787E-8	4.61589E-7	7.40194E-6
M	2.00854E-5	3.88431E-6	2.03961E-5	-8.55076E-7	7.40194E-6	1.29239E-4

Date of computation: 2026-02-10 13:02 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

28.169

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

6 - 14*

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

0.685621

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-02-05.269562

Unit

Source

[2]

Last Observation

Value

2026-02-09.215442

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

34 (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

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 2026CB1 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	2026-02-04 22:34	< 1 s	0.0023036	0.0023002	0.0000011
EARTH	2071-09-08 22:50	> 1 w	0.1809655	0.0486641	0.3263425
EARTH	2074-10-18 09:54	> 1 mo	0.1876373	0.0490903	0.1874450
VENUS	2077-12-09 00:27	> 1 mo	0.0473313	0.0053285	0.0437597
EARTH	2081-02-14 08:51	> 1 w	0.1538223	0.0039387	0.2531772
EARTH	2123-09-22 11:48	> 1 d	0.0520421	0.0507849	0.0088904

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
35.86901466	33.79472839	0.00020252	MINIMUM
322.45645603	253.23320185	0.04383394	MINIMUM
358.64366124	322.61783908	0.25896864	SADDLE
358.96904598	143.32789528	1.74809518	SADDLE
179.74930742	144.43952541	2.38298108	SADDLE
179.82588865	324.48016834	4.37972447	MAXIMUM

Download:

MOID Plots

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