Asteroids

2026CQ3 help

Last update: 2026-02-23 13:15 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Amor

Perihelion (q)

1.023

Aphelion (Q)

1.454

Eccentricity (e)

0.174

Inclination (i)

21.3

deg

Orbit period (P)

503.4

Earth MOID

0.05247

U parameter

7.6

Next Earth close approach

Date

2037-02-18

Nominal distance (from Earth center)

0.1517

22693473

Maximum Brightness

23.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.6

mag

Diameter

20 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-02-15

Observatory

La Palma-Liverpool Telescope

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

1.238401

1-sigma variation

0.000547

Unit

Eccentricity (e)

Value

0.173815

1-sigma variation

0.000318

Unit

Inclination (i)

Value

21.3220

1-sigma variation

0.0212

Unit

Long. of Ascending Node (Ω)

Value

326.3738

1-sigma variation

0.0004

Unit

Arg. of Perihelion (ω)

Value

151.6193

1-sigma variation

0.0241

Unit

Mean Anomaly (M)

Value

318.38700

1-sigma variation

0.00965

Unit

Perihelion distance

Value

1.023148

1-sigma variation

Unit

Aphelion distance

Value

1.453653

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.404867

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.053213

1-sigma variation

Unit

MOID

Value

0.052472

1-sigma variation

Unit

Orbit Period

Value

503.3734

1-sigma variation

Unit

U parameter

Value

7.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.98743E-7	1.73742E-7	1.15980E-5	2.11380E-7	1.31513E-5	5.27440E-6
e	1.73742E-7	1.01045E-7	6.74513E-6	1.22933E-7	7.64832E-6	3.06760E-6
i	1.15980E-5	6.74513E-6	4.50275E-4	8.20662E-6	5.10571E-4	2.04768E-4
Ω	2.11380E-7	1.22933E-7	8.20662E-6	1.49596E-7	9.30604E-6	3.73160E-6
ω	1.31513E-5	7.64832E-6	5.10571E-4	9.30604E-6	5.79113E-4	2.32083E-4
M	5.27440E-6	3.06760E-6	2.04768E-4	3.73160E-6	2.32083E-4	9.31937E-5

Date of computation: 2026-02-23 13:15 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

25.585

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

20 - 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

0.898357

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-02-10.351747

Unit

Source

[2]

Last Observation

Value

2026-02-22.05907

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

49 (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 2026CQ3 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	1964-02-10 05:40	> 1 d	0.1985972	0.0509823	0.3044502
EARTH	1975-02-13 23:05	> 1 d	0.0552156	0.0534833	0.0355595
EARTH	1986-02-18 05:57	> 1 d	0.1554279	0.0503599	0.1284594
EARTH	2015-02-10 10:40	1161.0	0.1792037	0.0609332	0.0440885
EARTH	2026-02-13 23:17	< 1 min	0.0539818	0.0538106	0.0000571
EARTH	2037-02-18 00:13	> 1 d	0.1516965	0.0504298	0.0434393
EARTH	2066-02-09 21:03	> 1 d	0.1993341	0.0502951	0.1272203
EARTH	2077-02-13 07:31	> 1 d	0.0614973	0.0530707	0.0728970
EARTH	2088-02-17 15:58	> 1 d	0.1131645	0.0517343	0.2082419
MARS	2116-06-16 06:06	> 1 w	0.0488581	0.0446248	0.0914459

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
22.83207820	43.19485971	0.05247236	MINIMUM
240.58258655	248.13207739	0.37797038	MINIMUM
292.67694941	299.53401019	0.41514034	SADDLE
135.34109086	159.92628671	0.54954112	SADDLE
349.46915555	186.04212989	2.03007375	SADDLE
187.63581671	24.75165979	2.43137051	MAXIMUM

Download:

MOID Plots

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