Asteroids

2026CB3 help

Last update: 2026-02-21 13:16 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.728

Aphelion (Q)

1.213

Eccentricity (e)

0.250

Inclination (i)

8.3

deg

Orbit period (P)

349.2

Earth MOID

0.03508

U parameter

6.9

Next Earth close approach

Date

2026-03-03

Nominal distance (from Earth center)

0.03565

5332922

Maximum Brightness

20.2

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.2

mag

Diameter

24 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-02-13

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

0.970404

1-sigma variation

0.000099

Unit

Eccentricity (e)

Value

0.250020

1-sigma variation

0.000419

Unit

Inclination (i)

Value

8.2878

1-sigma variation

0.0157

Unit

Long. of Ascending Node (Ω)

Value

329.7830

1-sigma variation

0.0035

Unit

Arg. of Perihelion (ω)

Value

305.5005

1-sigma variation

0.0096

Unit

Mean Anomaly (M)

Value

170.12319

1-sigma variation

0.07360

Unit

Perihelion distance

Value

0.727784

1-sigma variation

Unit

Aphelion distance

Value

1.213025

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.217732

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.075015

1-sigma variation

Unit

MOID

Value

0.035081

1-sigma variation

Unit

Orbit Period

Value

349.1625

1-sigma variation

Unit

U parameter

Value

6.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.74414E-9	4.11294E-8	1.54830E-6	3.45200E-7	-9.43844E-7	7.24757E-6
e	4.11294E-8	1.75937E-7	6.58980E-6	1.47024E-6	-3.96713E-6	3.08364E-5
i	1.54830E-6	6.58980E-6	2.47302E-4	5.51594E-5	-1.49568E-4	1.15731E-3
Ω	3.45200E-7	1.47024E-6	5.51594E-5	1.23041E-5	-3.33402E-5	2.58135E-4
ω	-9.43844E-7	-3.96713E-6	-1.49568E-4	-3.33402E-5	9.15694E-5	-7.00288E-4
M	7.24757E-6	3.08364E-5	1.15731E-3	2.58135E-4	-7.00288E-4	5.41639E-3

Date of computation: 2026-02-21 13:16 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

25.179

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

24 - 50*

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

0.527303

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-02-13.539209

Unit

Source

[2]

Last Observation

Value

2026-02-20.627118

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

26 (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 2026CB3 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	1953-10-12 05:49	> 1 d	0.1195284	0.1098113	0.0090452
EARTH	1957-02-09 14:09	> 1 d	0.1781930	0.1388816	0.0137783
EARTH	1958-03-02 19:38	270.4	0.0599818	0.0335735	0.0171752
VENUS	1965-02-19 21:45	242.5	0.0359286	0.0319261	0.0013492
VENUS	1973-10-06 11:10	> 1 d	0.0333639	0.0228679	0.0173292
EARTH	1976-10-14 00:22	> 1 d	0.1329538	0.1110234	0.0143462
EARTH	1977-09-07 06:04	> 1 w	0.1891269	0.1540437	0.0149925
EARTH	1980-02-07 06:36	> 1 w	0.1890187	0.1415182	0.0168322
EARTH	1981-03-03 00:52	608.7	0.0475954	0.0354329	0.0200879
EARTH	1999-10-17 20:17	> 1 d	0.1639729	0.1258936	0.0152869
EARTH	2000-09-16 21:11	> 1 d	0.1663615	0.1389222	0.0114057
EARTH	2004-03-03 00:28	123.9	0.0375258	0.0355501	0.0039292
EARTH	2022-10-01 16:06	1020.4	0.1303019	0.1235312	0.0024594
EARTH	2026-03-03 07:55	< 1 min	0.0356484	0.0354665	0.0000606
EARTH	2043-10-14 02:20	1132.8	0.1211051	0.1113661	0.0053636
EARTH	2047-02-25 04:15	> 1 d	0.1128194	0.0746806	0.0134383
EARTH	2048-02-28 18:47	618.4	0.1614271	0.1143990	0.0158616
VENUS	2059-11-23 22:02	228.1	0.0476906	0.0450129	0.0009050
EARTH	2065-10-14 07:04	750.5	0.1259900	0.1163921	0.0041375
EARTH	2069-02-14 10:06	> 1 d	0.1622684	0.1357392	0.0090692
EARTH	2070-03-02 22:53	472.7	0.0863188	0.0516459	0.0127180
EARTH	2088-10-11 15:33	1303.7	0.1137198	0.1118200	0.0023647
EARTH	2092-02-20 07:04	> 1 d	0.1422726	0.1196987	0.0076878
EARTH	2093-03-02 01:17	367.5	0.1145064	0.0878187	0.0090729
EARTH	2111-10-03 14:43	> 1 d	0.1310236	0.1210442	0.0040447
EARTH	2115-03-04 21:32	347.9	0.0438310	0.0378153	0.0064211

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
261.08435694	60.05380031	0.03508143	MINIMUM
86.69862271	275.97275329	0.11129897	MINIMUM
172.21291900	348.36650084	0.26520321	SADDLE
354.29109237	166.54001928	0.30886741	SADDLE
359.35632523	353.27212857	1.70850306	SADDLE
181.27971193	175.32648804	2.22733692	MAXIMUM

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MOID Plots

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