Asteroids

2026CU help

Last update: 2026-02-09 10:13 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.881

Aphelion (Q)

1.681

Eccentricity (e)

0.312

Inclination (i)

4.3

deg

Orbit period (P)

529.7

Earth MOID

0.01014

U parameter

7.5

Next Earth close approach

Date

2026-02-18

Nominal distance (from Earth center)

0.01387

2074351

Maximum Brightness

20.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.6

mag

Diameter

20 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-02-05

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

1.281257

1-sigma variation

0.000461

Unit

Eccentricity (e)

Value

0.312147

1-sigma variation

0.000323

Unit

Inclination (i)

Value

4.3356

1-sigma variation

0.0039

Unit

Long. of Ascending Node (Ω)

Value

335.6532

1-sigma variation

0.0068

Unit

Arg. of Perihelion (ω)

Value

228.9020

1-sigma variation

0.0052

Unit

Mean Anomaly (M)

Value

269.27492

1-sigma variation

0.05401

Unit

Perihelion distance

Value

0.881317

1-sigma variation

Unit

Aphelion distance

Value

1.681198

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.444306

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.031076

1-sigma variation

Unit

MOID

Value

0.010145

1-sigma variation

Unit

Orbit Period

Value

529.7281

1-sigma variation

Unit

U parameter

Value

7.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.12894E-7	1.49183E-7	1.78012E-6	-7.37361E-7	1.84203E-6	2.49026E-5
e	1.49183E-7	1.04562E-7	1.24557E-6	-4.88971E-7	1.27873E-6	1.74408E-5
i	1.78012E-6	1.24557E-6	1.51011E-5	-9.18409E-6	1.69146E-5	2.09170E-4
Ω	-7.37361E-7	-4.88971E-7	-9.18409E-6	4.57276E-5	-2.74598E-5	-1.00029E-4
ω	1.84203E-6	1.27873E-6	1.69146E-5	-2.74598E-5	2.66625E-5	2.22017E-4
M	2.49026E-5	1.74408E-5	2.09170E-4	-1.00029E-4	2.22017E-4	2.91739E-3

Date of computation: 2026-02-09 10:13 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

25.64

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 - 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

[-]

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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

0.709868

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-02-05.243871

Unit

Source

[2]

Last Observation

Value

2026-02-08.287804

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

31 (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 2026CU 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	1955-03-14 16:57	> 1 mo	0.0976571	0.0324351	0.7935142
EARTH	1968-06-03 20:30	> 1 mo	0.1025904	0.0727927	0.3579695
EARTH	1981-07-02 13:30	677.5	0.1628496	0.1607359	0.0010768
EARTH	1984-02-14 13:04	> 1 w	0.0317955	0.0106918	0.1485600
EARTH	1997-02-18 16:03	> 1 w	0.0160394	0.0103157	0.0592141
EARTH	2010-05-21 17:58	> 1 w	0.1206149	0.0831985	0.0193601
EARTH	2023-07-04 18:39	692.6	0.1875881	0.1601611	0.0092771
EARTH	2026-02-18 16:29	4.2	0.0138662	0.0138262	0.0000133
MARS	2028-01-25 08:54	315.4	0.0460203	0.0369191	0.0031864
EARTH	2039-07-02 06:45	> 1 d	0.1589099	0.0726643	0.0376800
EARTH	2042-02-23 05:12	> 1 w	0.0387585	0.0108839	0.0445443
EARTH	2058-04-25 12:23	> 1 mo	0.1349171	0.1344073	0.0023932
EARTH	2074-06-21 21:10	> 1 w	0.0723054	0.0716150	0.0284887
EARTH	2077-02-11 22:57	> 1 w	0.0578196	0.0100424	0.2722199
EARTH	2090-07-02 22:30	> 1 d	0.1677929	0.0713695	0.0750252
EARTH	2093-02-28 15:58	> 1 mo	0.0611104	0.0130770	0.1316714
EARTH	2109-05-14 12:31	> 1 mo	0.1271565	0.0959913	0.0801039
EARTH	2125-06-28 02:53	> 1 w	0.0969007	0.0712519	0.2196002

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
317.63780301	46.23775005	0.01014494	MINIMUM
50.00607925	168.69383354	0.07063747	MINIMUM
7.02397819	111.81953880	0.13727100	SADDLE
182.42454399	285.49394906	0.68884016	SADDLE
3.51617150	286.95648809	1.87671491	SADDLE
181.55950002	104.87388448	2.68506753	MAXIMUM

Download:

MOID Plots

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