Asteroids

2026CA1 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.932

Aphelion (Q)

2.268

Eccentricity (e)

0.417

Inclination (i)

1.1

deg

Orbit period (P)

739.1

Earth MOID

0.00938

U parameter

7.2

Next Earth close approach

Date

2026-02-13

Nominal distance (from Earth center)

0.01631

2440510

Maximum Brightness

18.9

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

2026-02-06

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

1.599837

1-sigma variation

0.000537

Unit

Eccentricity (e)

Value

0.417339

1-sigma variation

0.000211

Unit

Inclination (i)

Value

1.0670

1-sigma variation

0.0004

Unit

Long. of Ascending Node (Ω)

Value

14.2282

1-sigma variation

0.0109

Unit

Arg. of Perihelion (ω)

Value

167.4601

1-sigma variation

0.0108

Unit

Mean Anomaly (M)

Value

304.51677

1-sigma variation

0.02863

Unit

Perihelion distance

Value

0.932163

1-sigma variation

Unit

Aphelion distance

Value

2.267511

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.230109

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.062727

1-sigma variation

Unit

MOID

Value

0.009380

1-sigma variation

Unit

Orbit Period

Value

739.1149

1-sigma variation

Unit

U parameter

Value

7.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.87948E-7	1.13110E-7	2.23048E-7	2.63741E-6	-1.62665E-6	1.53605E-5
e	1.13110E-7	4.44340E-8	8.78000E-8	1.01969E-6	-6.21577E-7	6.03348E-6
i	2.23048E-7	8.78000E-8	1.84739E-7	9.80161E-7	-1.31192E-7	1.18782E-5
Ω	2.63741E-6	1.01969E-6	9.80161E-7	1.18662E-4	-1.15260E-4	1.42485E-4
ω	-1.62665E-6	-6.21577E-7	-1.31192E-7	-1.15260E-4	1.15792E-4	-8.86848E-5
M	1.53605E-5	6.03348E-6	1.18782E-5	1.42485E-4	-8.86848E-5	8.19438E-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

25.607

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

[-]

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

0.578036

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-02-06.440954

Unit

Source

[2]

Last Observation

Value

2026-02-09.321945

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

61 (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 2026CA1 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	1951-05-17 06:06	> 1 w	0.1016873	0.0102456	0.1802974
EARTH	2024-01-29 17:52	596.5	0.1494837	0.1303351	0.0063876
EARTH	2026-02-13 06:54	< 1 min	0.0163138	0.0162910	0.0000076
EARTH	2028-03-09 16:36	> 1 d	0.0574226	0.0510194	0.0021560
EARTH	2030-04-13 12:31	> 1 d	0.0542052	0.0407486	0.0045596
EARTH	2032-05-06 00:13	> 1 d	0.0150522	0.0102727	0.0092989
EARTH	2034-05-22 21:02	952.6	0.1614828	0.1312942	0.0100669
EARTH	2101-02-02 22:36	> 1 w	0.1111174	0.0127422	0.1477915
EARTH	2103-02-25 09:05	> 1 mo	0.0310237	0.0132974	0.0828588
EARTH	2105-04-21 15:16	> 1 w	0.0440464	0.0116282	0.0216760
EARTH	2107-05-19 15:47	> 1 d	0.1014885	0.0091880	0.0572693
MARS	2123-10-19 11:08	> 1 w	0.0386459	0.0106735	0.6192121

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
27.78627432	121.72980152	0.00937972	MINIMUM
336.53056632	43.79491808	0.01382322	MINIMUM
2.19075317	82.74690829	0.06609108	SADDLE
180.93726086	261.41834128	1.26407725	SADDLE
2.30006495	262.91241533	1.93538415	SADDLE
180.94204740	81.41917830	3.26547834	MAXIMUM

Download:

MOID Plots

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