Asteroids

2026CP1 help

Last update: 2026-02-11 10:45 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.762

Aphelion (Q)

1.263

Eccentricity (e)

0.247

Inclination (i)

6.4

deg

Orbit period (P)

372.3

Earth MOID

0.01448

U parameter

6.6

Next Earth close approach

Date

2027-02-11

Nominal distance (from Earth center)

0.13328

19938088

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.2

mag

Diameter

10 - 21*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-02-10

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

1.012889

1-sigma variation

0.000071

Unit

Eccentricity (e)

Value

0.247275

1-sigma variation

0.000186

Unit

Inclination (i)

Value

6.3885

1-sigma variation

0.0054

Unit

Long. of Ascending Node (Ω)

Value

324.5061

1-sigma variation

0.0007

Unit

Arg. of Perihelion (ω)

Value

73.3268

1-sigma variation

0.0015

Unit

Mean Anomaly (M)

Value

355.89119

1-sigma variation

0.01371

Unit

Perihelion distance

Value

0.762427

1-sigma variation

Unit

Aphelion distance

Value

1.263351

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.125413

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.035537

1-sigma variation

Unit

MOID

Value

0.014479

1-sigma variation

Unit

Orbit Period

Value

372.3414

1-sigma variation

Unit

U parameter

Value

6.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.00770E-9	1.30831E-8	3.82822E-7	-5.14190E-8	3.98307E-8	-9.68668E-7
e	1.30831E-8	3.45154E-8	1.00005E-6	-1.32854E-7	7.84478E-8	-2.54572E-6
i	3.82822E-7	1.00005E-6	2.93495E-5	-3.95734E-6	3.04484E-6	-7.40139E-5
Ω	-5.14190E-8	-1.32854E-7	-3.95734E-6	5.43324E-7	-5.21826E-7	9.87070E-6
ω	3.98307E-8	7.84478E-8	3.04484E-6	-5.21826E-7	2.28526E-6	-6.56333E-6
M	-9.68668E-7	-2.54572E-6	-7.40139E-5	9.87070E-6	-6.56333E-6	1.88060E-4

Date of computation: 2026-02-11 10:45 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

27.216

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

10 - 21*

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

0.435717

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-02-09.283351

Unit

Source

[2]

Last Observation

Value

2026-02-11.14298

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

22 (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 2026CP1 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	1966-07-13 12:08	> 1 w	0.1311430	0.0580031	0.2721469
EARTH	1967-07-20 17:34	> 1 w	0.0556733	0.0556448	0.0059923
EARTH	1968-08-04 06:17	> 1 mo	0.1215010	0.0657998	0.1873060
EARTH	1969-09-07 18:03	> 1 mo	0.1953097	0.1288364	0.0962233
EARTH	1974-03-07 08:43	> 1 mo	0.1977348	0.0721607	0.0528311
EARTH	1975-02-09 12:36	> 1 d	0.1082624	0.0208915	0.0550740
EARTH	1976-02-07 04:27	899.2	0.0161930	0.0154471	0.0076649
EARTH	1977-02-10 16:13	1294.7	0.1303714	0.0529487	0.0260689
EARTH	2017-07-16 10:03	342.8	0.0905898	0.0802100	0.0035992
EARTH	2018-07-25 06:06	539.3	0.0715028	0.0648908	0.0024144
EARTH	2019-08-23 18:43	> 1 d	0.1630282	0.1568716	0.0020777
EARTH	2025-02-10 16:14	117.4	0.1196946	0.1177886	0.0006355
EARTH	2026-02-06 17:29	< 1 min	0.0148431	0.0148085	0.0000115
EARTH	2027-02-11 09:21	34.6	0.1332779	0.1312998	0.0006594
EARTH	2064-07-10 19:09	> 1 d	0.1919897	0.1095285	0.0285781
EARTH	2065-07-18 00:40	> 1 d	0.0767551	0.0539736	0.0218001
EARTH	2066-07-28 16:05	> 1 d	0.0875770	0.0559539	0.0233976
EARTH	2067-09-02 00:43	> 1 w	0.1805104	0.1371060	0.0165349
EARTH	2071-12-28 18:41	> 1 w	0.1871109	0.1376156	0.0167282
EARTH	2072-02-27 17:30	> 1 w	0.1748819	0.1214300	0.0182458
EARTH	2073-02-05 22:04	175.7	0.0587242	0.0136481	0.0236016
EARTH	2074-02-08 21:19	1081.2	0.0679775	0.0151026	0.0199702
EARTH	2075-02-14 03:36	751.7	0.1968143	0.1541372	0.0142357
EARTH	2113-07-16 15:38	> 1 w	0.1128995	0.0538850	0.2239915
EARTH	2114-07-24 23:38	> 1 w	0.0586326	0.0530601	0.1093642
EARTH	2115-08-20 05:57	> 1 mo	0.1519733	0.0872822	0.1968499
EARTH	2121-02-09 05:30	> 1 mo	0.1048408	0.0179072	0.3541723
EARTH	2122-02-08 12:09	> 1 w	0.0253958	0.0129505	0.3159884
EARTH	2123-02-14 01:19	> 1 d	0.1655161	0.0120283	0.2114725

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
85.37265793	35.77702329	0.01447876	MINIMUM
273.96647502	196.51836960	0.05558999	MINIMUM
358.88391059	296.15369116	0.24852265	SADDLE
180.27966418	115.93512316	0.28205706	SADDLE
355.78015498	112.19310895	1.76788447	SADDLE
176.79387807	293.20752786	2.25368376	MAXIMUM

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MOID Plots

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