Asteroids

2002CA26 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.791

Aphelion (Q)

4.005

Eccentricity (e)

0.670

Inclination (i)

0.4

deg

Orbit period (P)

1356.1

Earth MOID

0.00263

U parameter

9.0

Next Earth close approach

Date

2050-01-23

Nominal distance (from Earth center)

0.10149

15182577

Maximum Brightness

26.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.6

mag

Diameter

13 - 29*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2002-02-08

Observatory

Lincoln Laboratory ETS, New Mexico

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

2.397674

1-sigma variation

6.470080

Unit

Eccentricity (e)

Value

0.670286

1-sigma variation

0.726345

Unit

Inclination (i)

Value

0.4123

1-sigma variation

114.0200

Unit

Long. of Ascending Node (Ω)

Value

116.7126

1-sigma variation

6217.3200

Unit

Arg. of Perihelion (ω)

Value

321.7353

1-sigma variation

6302.5200

Unit

Mean Anomaly (M)

Value

183.29141

1-sigma variation

693.81900

Unit

Perihelion distance

Value

0.790547

1-sigma variation

Unit

Aphelion distance

Value

4.004801

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.120459

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.785296

1-sigma variation

Unit

MOID

Value

0.002627

1-sigma variation

Unit

Orbit Period

Value

1356.0750

1-sigma variation

Unit

U parameter

Value

9.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.18619E1	4.69951E0	-7.37719E2	-4.02265E4	4.07778E4	-4.48907E3
e	4.69951E0	5.27577E-1	-8.28179E1	-4.51592E3	4.57780E3	-5.03952E2
i	-7.37719E2	-8.28179E1	1.30006E4	7.08899E5	-7.18614E5	7.91094E4
Ω	-4.02265E4	-4.51592E3	7.08899E5	3.86550E7	-3.91848E7	4.31370E6
ω	4.07778E4	4.57780E3	-7.18614E5	-3.91848E7	3.97218E7	-4.37281E6
M	-4.48907E3	-5.03952E2	7.91094E4	4.31370E6	-4.37281E6	4.81385E5

Date of computation: 2025-09-10 00:30 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

26.588

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

13 - 29*

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

8667

Unit

Source

[1]

Normalized RMS of residuals

Value

0.452569

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2002-02-08.31341

Unit

Source

[2]

Last Observation

Value

2002-02-12.33959

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

14 (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 2002CA26 from 1950 to 2125

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1955-01-18 06:06	> 1 mo	0.1222211	0.0042301	9.5079207
EARTH	1983-11-16 04:13	> 1 mo	0.1768274	0.0146844	1.6216572
EARTH	2002-02-05 11:12	< 1 min	0.0065177	0.0062975	0.0000734
EARTH	2013-02-15 04:56	> 1 mo	0.1246530	0.0027386	2.5207331
EARTH	2024-02-08 02:06	> 1 mo	0.0041823	0.0026103	2.9902525
EARTH	2050-01-23 12:15	> 1 mo	0.1014893	0.0032355	475.0171721
EARTH	2064-10-20 22:38	> 1 mo	0.0553353	0.0073819	472.6497067
EARTH	2091-01-30 09:36	> 1 mo	0.0780626	0.0026195	1066.4217190
EARTH	2117-01-07 08:13	> 1 mo	0.1486726	0.0054928	73.6925900

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
28.61178906	35.37263765	0.00265885	MINIMUM
330.53042743	275.88586153	0.00707601	MINIMUM
359.45573394	335.46815754	0.19473953	SADDLE
359.44666511	155.46246356	1.80520149	SADDLE
179.89294455	156.06508487	2.98982370	SADDLE
179.89694403	336.06970917	4.98971007	MAXIMUM

Download:

MOID Plots

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