Asteroids

2026KW help

Last update: 2026-05-26 13:01 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.822

Aphelion (Q)

2.001

Eccentricity (e)

0.417

Inclination (i)

27.6

deg

Orbit period (P)

612.8

Earth MOID

0.00895

U parameter

7.4

Next Earth close approach

Date

2073-05-19

Nominal distance (from Earth center)

0.12914

19319665

Maximum Brightness

24.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.7

mag

Diameter

19 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-05-20

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.411869

1-sigma variation

0.000545

Unit

Eccentricity (e)

Value

0.417479

1-sigma variation

0.000236

Unit

Inclination (i)

Value

27.6077

1-sigma variation

0.0101

Unit

Long. of Ascending Node (Ω)

Value

63.4632

1-sigma variation

1.489E-5

Unit

Arg. of Perihelion (ω)

Value

250.6103

1-sigma variation

0.0124

Unit

Mean Anomaly (M)

Value

338.00325

1-sigma variation

0.02115

Unit

Perihelion distance

Value

0.822444

1-sigma variation

Unit

Aphelion distance

Value

2.001294

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.365825

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.011288

1-sigma variation

Unit

MOID

Value

0.008950

1-sigma variation

Unit

Orbit Period

Value

612.7594

1-sigma variation

Unit

U parameter

Value

7.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.97419E-7	1.28498E-7	5.51719E-6	8.07578E-9	-6.76616E-6	1.15360E-5
e	1.28498E-7	5.55169E-8	2.38367E-6	3.48905E-9	-2.92326E-6	4.98405E-6
i	5.51719E-6	2.38367E-6	1.02346E-4	1.49794E-7	-1.25513E-4	2.13995E-4
Ω	8.07578E-9	3.48905E-9	1.49794E-7	2.21698E-10	-1.83729E-7	3.13235E-7
ω	-6.76616E-6	-2.92326E-6	-1.25513E-4	-1.83729E-7	1.53932E-4	-2.62440E-4
M	1.15360E-5	4.98405E-6	2.13995E-4	3.13235E-7	-2.62440E-4	4.47447E-4

Date of computation: 2026-05-26 13:01 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

25.712

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

19 - 40*

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

0.694923

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-05-20.359034

Unit

Source

[2]

Last Observation

Value

2026-05-25.936871

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

84 (3)

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

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 2026KW 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	1974-05-20 19:05	> 1 d	0.0972505	0.0055345	0.1435747
EARTH	1979-05-30 19:26	> 1 w	0.0976426	0.0046401	0.1503241
EARTH	2026-05-25 14:35	< 1 s	0.0088846	0.0088738	0.0000036
EARTH	2073-05-19 04:12	> 1 d	0.1291440	0.0060794	0.1493227
EARTH	2078-05-29 02:12	> 1 w	0.0685070	0.0088333	0.1468806
EARTH	2120-05-17 22:53	> 1 w	0.1726914	0.0044845	0.1823688
EARTH	2125-05-28 11:16	> 1 w	0.0415406	0.0109138	0.2040095

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
311.68648775	139.01983806	0.00895039	MINIMUM
63.68338493	300.80371652	0.23984693	MINIMUM
10.95499253	227.33891683	0.47260173	SADDLE
186.32822529	31.59044210	1.19956297	SADDLE
2.81406268	32.92665563	1.76114813	SADDLE
175.95647460	204.34474825	2.94907643	MAXIMUM

Download:

MOID Plots

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