Asteroids

2026CY help

Last update: 2026-02-09 09:48 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.705

Aphelion (Q)

1.955

Eccentricity (e)

0.470

Inclination (i)

21.8

deg

Orbit period (P)

560.2

Earth MOID

0.00422

U parameter

7.8

Next Earth close approach

Date

2042-08-07

Nominal distance (from Earth center)

0.19392

29010463

Maximum Brightness

27.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.7

mag

Diameter

8 - 17*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-02-07

Observatory

JPL SynTrack Robotic Telescope, Auberry

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

1.329921

1-sigma variation

0.000836

Unit

Eccentricity (e)

Value

0.469849

1-sigma variation

0.000407

Unit

Inclination (i)

Value

21.7577

1-sigma variation

0.0171

Unit

Long. of Ascending Node (Ω)

Value

138.1974

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

275.2661

1-sigma variation

0.0123

Unit

Mean Anomaly (M)

Value

344.56046

1-sigma variation

0.00107

Unit

Perihelion distance

Value

0.705060

1-sigma variation

Unit

Aphelion distance

Value

1.954783

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.006550

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.068490

1-sigma variation

Unit

MOID

Value

0.004221

1-sigma variation

Unit

Orbit Period

Value

560.1926

1-sigma variation

Unit

U parameter

Value

7.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	6.98135E-7	3.39859E-7	1.42411E-5	1.64323E-7	1.02573E-5	8.94616E-7
e	3.39859E-7	1.65455E-7	6.93388E-6	7.99963E-8	4.99196E-6	4.35665E-7
i	1.42411E-5	6.93388E-6	2.90744E-4	3.35255E-6	2.09018E-4	1.82778E-5
Ω	1.64323E-7	7.99963E-8	3.35255E-6	3.87003E-8	2.41390E-6	2.10600E-7
ω	1.02573E-5	4.99196E-6	2.09018E-4	2.41390E-6	1.50950E-4	1.31157E-5
M	8.94616E-7	4.35665E-7	1.82778E-5	2.10600E-7	1.31157E-5	1.14998E-6

Date of computation: 2026-02-09 09:48 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

27.679

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

8 - 17*

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

0.805709

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-02-07.549944

Unit

Source

[2]

Last Observation

Value

2026-02-09.242412

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

16 (1)

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 2026CY 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	1967-08-17 16:45	> 1 mo	0.0568426	0.0386743	1.6845040
EARTH	1977-02-08 00:57	> 1 mo	0.0346502	0.0062860	3.7193592
EARTH	1993-08-15 05:25	> 1 w	0.0393525	0.0387629	0.1188430
EARTH	2003-02-07 18:18	> 1 d	0.0165095	0.0053329	0.1131530
EARTH	2016-08-07 00:28	> 1 d	0.1989659	0.0560487	0.0500918
EARTH	2026-02-06 13:56	< 1 min	0.0069740	0.0069571	0.0000056
EARTH	2042-08-07 14:16	> 1 d	0.1939230	0.0366627	0.0960743
EARTH	2045-08-21 06:38	> 1 d	0.1435084	0.0375017	0.1106029
EARTH	2055-02-11 03:43	> 1 d	0.0839370	0.0021553	0.1468965
EARTH	2071-08-13 03:59	> 1 d	0.0829457	0.0411416	0.0700349
EARTH	2081-02-01 15:05	> 1 d	0.1023867	0.0201823	0.0274338
EARTH	2100-08-16 16:09	> 1 d	0.0432803	0.0431005	0.0082980
EARTH	2110-02-05 02:40	> 1 w	0.0602424	0.0008840	0.2703280

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
56.99447968	35.83651028	0.00422127	MINIMUM
297.73479637	222.12489790	0.04148845	MINIMUM
356.73464738	307.89665139	0.42469459	SADDLE
178.21833207	130.99659014	1.08081915	SADDLE
357.54435768	129.34896654	1.68738313	SADDLE
179.75173533	312.00303574	2.89715887	MAXIMUM

Download:

MOID Plots

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