Asteroids

2026CJ1 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.913

Aphelion (Q)

1.437

Eccentricity (e)

0.223

Inclination (i)

7.2

deg

Orbit period (P)

465.3

Earth MOID

0.03467

U parameter

7.8

Next Earth close approach

Date

2026-02-23

Nominal distance (from Earth center)

0.03519

5264395

Maximum Brightness

20.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.7

mag

Diameter

19 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-02-08

Observatory

Mt. Lemmon 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

1.175089

1-sigma variation

0.000570

Unit

Eccentricity (e)

Value

0.222797

1-sigma variation

0.000551

Unit

Inclination (i)

Value

7.2485

1-sigma variation

0.0142

Unit

Long. of Ascending Node (Ω)

Value

320.9577

1-sigma variation

0.0012

Unit

Arg. of Perihelion (ω)

Value

254.7276

1-sigma variation

0.0310

Unit

Mean Anomaly (M)

Value

246.46901

1-sigma variation

0.09330

Unit

Perihelion distance

Value

0.913282

1-sigma variation

Unit

Aphelion distance

Value

1.436896

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.172390

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.067398

1-sigma variation

Unit

MOID

Value

0.034668

1-sigma variation

Unit

Orbit Period

Value

465.2695

1-sigma variation

Unit

U parameter

Value

7.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.24700E-7	3.01399E-7	8.06712E-6	7.09260E-7	3.31155E-6	5.28745E-5
e	3.01399E-7	3.04061E-7	7.46222E-6	6.54962E-7	7.81570E-6	4.75624E-5
i	8.06712E-6	7.46222E-6	2.00534E-4	1.76285E-5	7.73340E-5	1.31517E-3
Ω	7.09260E-7	6.54962E-7	1.76285E-5	1.55041E-6	6.58142E-6	1.15699E-4
ω	3.31155E-6	7.81570E-6	7.73340E-5	6.58142E-6	9.59706E-4	2.42737E-4
M	5.28745E-5	4.75624E-5	1.31517E-3	1.15699E-4	2.42737E-4	8.70517E-3

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

25.725

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

19 - 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

0.406339

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-02-08.43063

Unit

Source

[2]

Last Observation

Value

2026-02-10.239009

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

32 (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 2026CJ1 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	1961-03-04 20:49	> 1 w	0.0929092	0.0237033	0.0425474
EARTH	1975-05-08 13:39	> 1 w	0.1523283	0.1519665	0.0001414
EARTH	1975-07-18 00:54	> 1 d	0.1760652	0.1274920	0.0172066
EARTH	1989-07-09 13:27	334.6	0.0878750	0.0790921	0.0049213
EARTH	1998-02-13 14:45	> 1 d	0.1858494	0.0862678	0.0337081
EARTH	2003-07-14 06:43	> 1 d	0.0952825	0.0762009	0.0276014
EARTH	2012-02-20 06:40	> 1 d	0.0703707	0.0335816	0.0531326
EARTH	2017-07-18 10:58	> 1 d	0.1747318	0.0830872	0.0366486
EARTH	2026-02-23 06:27	9.0	0.0351903	0.0349865	0.0000679
EARTH	2040-02-24 10:10	> 1 d	0.0357173	0.0351051	0.0105431
EARTH	2054-02-24 18:27	> 1 mo	0.0390251	0.0353047	0.1912073
EARTH	2068-03-02 19:38	> 1 mo	0.0851889	0.0292303	2.1962972
EARTH	2082-05-01 15:50	> 1 mo	0.1516195	0.1325735	0.2349372
EARTH	2082-07-23 06:37	> 1 mo	0.1896298	0.0966295	2.2770445
EARTH	2096-07-09 02:01	> 1 mo	0.0937626	0.0727924	1.3019030
EARTH	2110-07-14 23:15	> 1 mo	0.0823268	0.0731535	0.8180567
EARTH	2119-02-20 17:09	> 1 mo	0.0863442	0.0352372	1.5630697
EARTH	2124-07-19 12:16	> 1 mo	0.1615839	0.0704418	0.8870448

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
309.45873680	52.24024064	0.03466848	MINIMUM
61.79090528	188.50649623	0.07598540	MINIMUM
8.51291251	124.10093187	0.15370616	SADDLE
184.32936026	298.35036459	0.46751917	SADDLE
4.50282703	299.00505121	1.90261291	SADDLE
182.35913546	116.78592114	2.44063900	MAXIMUM

Download:

MOID Plots

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