Asteroids

2026AV4 help

Last update: 2026-01-19 12:46 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.874

Aphelion (Q)

2.386

Eccentricity (e)

0.464

Inclination (i)

4.1

deg

Orbit period (P)

760.0

Earth MOID

0.01088

U parameter

8.4

Next Earth close approach

Date

2028-05-05

Nominal distance (from Earth center)

0.06805

10179489

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.6

mag

Diameter

8 - 18*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-01-14

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

1.629823

1-sigma variation

0.003249

Unit

Eccentricity (e)

Value

0.463816

1-sigma variation

0.001199

Unit

Inclination (i)

Value

4.0557

1-sigma variation

0.0088

Unit

Long. of Ascending Node (Ω)

Value

293.1121

1-sigma variation

0.0008

Unit

Arg. of Perihelion (ω)

Value

239.1315

1-sigma variation

0.0059

Unit

Mean Anomaly (M)

Value

313.15853

1-sigma variation

0.14917

Unit

Perihelion distance

Value

0.873884

1-sigma variation

Unit

Aphelion distance

Value

2.385761

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.661485

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.049189

1-sigma variation

Unit

MOID

Value

0.010885

1-sigma variation

Unit

Orbit Period

Value

759.9919

1-sigma variation

Unit

U parameter

Value

8.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.05583E-5	3.89758E-6	2.86277E-5	2.57409E-6	1.92042E-5	4.84707E-4
e	3.89758E-6	1.43878E-6	1.05678E-5	9.50221E-7	7.08926E-6	1.78928E-4
i	2.86277E-5	1.05678E-5	7.76210E-5	6.97954E-6	5.20691E-5	1.31423E-3
Ω	2.57409E-6	9.50221E-7	6.97954E-6	6.27899E-7	4.68204E-6	1.18170E-4
ω	1.92042E-5	7.08926E-6	5.20691E-5	4.68204E-6	3.49532E-5	8.81611E-4
M	4.84707E-4	1.78928E-4	1.31423E-3	1.18170E-4	8.81611E-4	2.22517E-2

Date of computation: 2026-01-19 12:46 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

27.602

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 - 18*

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

0.891804

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-01-09.3788

Unit

Source

[2]

Last Observation

Value

2026-01-19.425131

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

25 (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 2026AV4 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	1951-05-12 20:06	> 1 w	0.0770136	0.0661424	0.0672304
EARTH	1974-01-14 03:30	> 1 mo	0.0796228	0.0078716	0.5564943
EARTH	1976-05-03 12:23	> 1 mo	0.0719718	0.0658373	0.1776234
EARTH	2001-03-07 13:51	> 1 mo	0.1300906	0.0716614	0.0859772
EARTH	2026-01-20 14:21	< 1 min	0.0185311	0.0184009	0.0000434
EARTH	2028-05-05 18:49	> 1 d	0.0680457	0.0646867	0.0105567
EARTH	2055-02-06 00:32	> 1 mo	0.0765633	0.0059397	0.4580366
EARTH	2057-05-17 01:59	> 1 mo	0.0996573	0.0639324	0.4290465
EARTH	2082-01-15 11:23	> 1 w	0.0762992	0.0111549	0.2898824
EARTH	2084-04-24 04:12	> 1 mo	0.0973798	0.0643986	0.1634972
EARTH	2111-01-24 13:48	> 1 mo	0.0131751	0.0129340	0.0659209
EARTH	2113-05-10 14:45	> 1 mo	0.0622701	0.0621984	0.1051586

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
328.32120814	20.20536371	0.01094167	MINIMUM
35.51541464	126.14452000	0.06545144	MINIMUM
3.88437687	76.23254244	0.13579169	SADDLE
180.91890601	251.83630851	1.39762271	SADDLE
2.19720795	253.43740662	1.87853929	SADDLE
180.66960688	71.68110873	3.39448602	MAXIMUM

Download:

MOID Plots

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