Asteroids

2026CR4 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.690

Aphelion (Q)

2.824

Eccentricity (e)

0.607

Inclination (i)

4.1

deg

Orbit period (P)

850.9

Earth MOID

0.02677

U parameter

8.7

Next Earth close approach

Date

2026-02-27

Nominal distance (from Earth center)

0.027

4039415

Maximum Brightness

19.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.1

mag

Diameter

40 - 90*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-02-14

Observatory

Pan-STARRS 1, 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

1.757273

1-sigma variation

0.005543

Unit

Eccentricity (e)

Value

0.607085

1-sigma variation

0.001521

Unit

Inclination (i)

Value

4.0899

1-sigma variation

0.0073

Unit

Long. of Ascending Node (Ω)

Value

180.5753

1-sigma variation

0.0127

Unit

Arg. of Perihelion (ω)

Value

56.1758

1-sigma variation

0.0093

Unit

Mean Anomaly (M)

Value

298.47123

1-sigma variation

0.31005

Unit

Perihelion distance

Value

0.690460

1-sigma variation

Unit

Aphelion distance

Value

2.824086

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.168019

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.672366

1-sigma variation

Unit

MOID

Value

0.026771

1-sigma variation

Unit

Orbit Period

Value

850.8583

1-sigma variation

Unit

U parameter

Value

8.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.07209E-5	8.42911E-6	4.02141E-5	6.93529E-5	-5.02262E-5	1.71850E-3
e	8.42911E-6	2.31275E-6	1.10339E-5	1.90280E-5	-1.37800E-5	4.71517E-4
i	4.02141E-5	1.10339E-5	5.26696E-5	9.04540E-5	-6.54224E-5	2.24955E-3
Ω	6.93529E-5	1.90280E-5	9.04540E-5	1.60368E-4	-1.17113E-4	3.87944E-3
ω	-5.02262E-5	-1.37800E-5	-6.54224E-5	-1.17113E-4	8.57890E-5	-2.80951E-3
M	1.71850E-3	4.71517E-4	2.24955E-3	3.87944E-3	-2.80951E-3	9.61316E-2

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

24.133

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

40 - 90*

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

0.287262

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-02-14.416

Unit

Source

[2]

Last Observation

Value

2026-02-22.566264

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

39 (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 2026CR4 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
VENUS	2000-08-26 16:35	> 1 mo	0.0192100	0.0089265	0.5360351
EARTH	2019-03-08 03:32	> 1 w	0.1092299	0.0290753	0.1942887
EARTH	2026-02-27 21:29	< 1 min	0.0270018	0.0268119	0.0000633
EARTH	2033-02-22 19:00	> 1 w	0.0791075	0.0269918	0.1966772
EARTH	2040-02-17 14:31	> 1 w	0.1892257	0.0281129	0.3135542
VENUS	2054-03-19 00:27	> 1 mo	0.0323155	0.0135702	0.2155921
VENUS	2098-06-27 11:12	> 1 mo	0.0128343	0.0052111	0.9941719
VENUS	2110-03-09 14:57	> 1 mo	0.0238973	0.0080921	11.0907381

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
316.16758320	56.39549620	0.02677098	MINIMUM
46.13576300	217.59371734	0.04893215	MINIMUM
1.81060503	138.07403899	0.32687287	SADDLE
1.36311531	317.17631327	1.67799607	SADDLE
180.41021316	315.82776325	1.83834355	SADDLE
180.27821740	135.76877435	3.83592145	MAXIMUM

Download:

MOID Plots

Click on the images to zoom-in and zoom-out