Asteroids

2026VY4 help

Last update: 2026-11-14 13:45 UTC

Orbital Properties

Epoch

61400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.620

Aphelion (Q)

3.036

Eccentricity (e)

0.661

Inclination (i)

2.4

deg

Orbit period (P)

902.5

Earth MOID

0.00402

U parameter

8.1

Next Earth close approach

Date

2046-05-15

Nominal distance (from Earth center)

0.12865

19245600

Maximum Brightness

25.8

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

26.9

mag

Diameter

11 - 24*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-11-05

Observatory

GINOP-KHK, Piszkesteto

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

61400.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.827703

1-sigma variation

0.002877

Unit

Eccentricity (e)

Value

0.660834

1-sigma variation

0.000654

Unit

Inclination (i)

Value

2.4036

1-sigma variation

0.0025

Unit

Long. of Ascending Node (Ω)

Value

230.8078

1-sigma variation

0.0015

Unit

Arg. of Perihelion (ω)

Value

82.7343

1-sigma variation

0.0014

Unit

Mean Anomaly (M)

Value

39.78183

1-sigma variation

0.10259

Unit

Perihelion distance

Value

0.619895

1-sigma variation

Unit

Aphelion distance

Value

3.035512

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.059648

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.135677

1-sigma variation

Unit

MOID

Value

0.004019

1-sigma variation

Unit

Orbit Period

Value

902.5204

1-sigma variation

Unit

U parameter

Value

8.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.27594E-6	1.88008E-6	7.15382E-6	-4.12337E-6	3.77951E-6	-2.95128E-4
e	1.88008E-6	4.27111E-7	1.62502E-6	-9.36448E-7	8.57411E-7	-6.70455E-5
i	7.15382E-6	1.62502E-6	6.19174E-6	-3.58343E-6	3.31266E-6	-2.55111E-4
Ω	-4.12337E-6	-9.36448E-7	-3.58343E-6	2.10507E-6	-1.98548E-6	1.47042E-4
ω	3.77951E-6	8.57411E-7	3.31266E-6	-1.98548E-6	2.05574E-6	-1.34775E-4
M	-2.95128E-4	-6.70455E-5	-2.55111E-4	1.47042E-4	-1.34775E-4	1.05245E-2

Date of computation: 2026-11-14 13:45 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

26.946

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

11 - 24*

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

[-]

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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

0.662003

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-11-05.774111

Unit

Source

[2]

Last Observation

Value

2026-11-11.30587

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

53 (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

Filters

Initial Date: *

Final Date: *

Normalised Only accepted

Max residual (arcsec):

* - these fields are required

Plot

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

* - these fields are required

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2026VY4 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	1960-04-26 18:16	> 1 mo	0.1486218	0.0073469	30.9810634
EARTH	1972-11-02 00:41	> 1 mo	0.0097851	0.0097629	0.0516136
EARTH	1999-10-18 01:36	> 1 mo	0.1976582	0.0058539	1.0700029
EARTH	2009-05-11 00:44	> 1 mo	0.0850561	0.0056222	0.7537803
MARS	2009-10-03 08:20	> 1 mo	0.0441084	0.0419776	0.1864158
EARTH	2026-11-03 15:50	< 1 min	0.0120905	0.0120562	0.0000115
EARTH	2046-05-15 10:16	> 1 w	0.1286489	0.0044258	0.2428960
EARTH	2051-04-26 23:45	> 1 w	0.1797713	0.0039314	0.2777842
EARTH	2073-10-31 12:42	> 1 w	0.0478782	0.0060600	0.3366056
EARTH	2093-05-04 23:59	> 1 w	0.0301797	0.0019461	0.4674361
EARTH	2110-11-15 15:45	> 1 mo	0.1981242	0.0039255	1.7052881

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
312.78340590	121.74171622	0.00401941	MINIMUM
46.23367404	298.12657883	0.00769350	MINIMUM
359.21083221	209.56024696	0.39426786	SADDLE
359.20204156	29.51996139	1.60499596	SADDLE
179.83787319	30.35230678	2.05046392	SADDLE
179.82226029	210.34115683	4.04676584	MAXIMUM

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MOID Plots

Click on the images to zoom-in and zoom-out

Level lines of the squared distance function

2026VY4

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS	TS
2115-05-08.231	93674.231	-2.951	0.000	0.62 ± 0.000	2.84E6	3.60E-9	2.54E-1	-9.35	0


Based on 53 optical observations (of which 1 are rejected as outliers) from 2026/11/05.774 to 2026/11/11.306.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.15 and 1.15 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20261114 154823.676 UTC.

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