Asteroids

2026QD3 help

Last update: 2026-08-27 15:00 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.882

Aphelion (Q)

1.379

Eccentricity (e)

0.220

Inclination (i)

21.0

deg

Orbit period (P)

438.9

Earth MOID

0.04399

U parameter

8.6

Next Earth close approach

Date

2032-08-26

Nominal distance (from Earth center)

0.06008

8987417

Maximum Brightness

22.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.6

mag

Diameter

12 - 28*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-08-22

Observatory

Kitt Peak-Bok

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

1.130318

1-sigma variation

0.001718

Unit

Eccentricity (e)

Value

0.219771

1-sigma variation

0.001149

Unit

Inclination (i)

Value

20.9764

1-sigma variation

0.0989

Unit

Long. of Ascending Node (Ω)

Value

148.8268

1-sigma variation

0.0019

Unit

Arg. of Perihelion (ω)

Value

266.8573

1-sigma variation

0.1844

Unit

Mean Anomaly (M)

Value

237.32923

1-sigma variation

0.43104

Unit

Perihelion distance

Value

0.881907

1-sigma variation

Unit

Aphelion distance

Value

1.378730

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.100714

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.050972

1-sigma variation

Unit

MOID

Value

0.043994

1-sigma variation

Unit

Orbit Period

Value

438.9344

1-sigma variation

Unit

U parameter

Value

8.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.95308E-6	1.97314E-6	1.69954E-4	3.29021E-6	-3.16681E-4	7.40729E-4
e	1.97314E-6	1.32005E-6	1.13538E-4	2.19812E-6	-2.11368E-4	4.94906E-4
i	1.69954E-4	1.13538E-4	9.78190E-3	1.89372E-4	-1.82277E-2	4.26300E-2
Ω	3.29021E-6	2.19812E-6	1.89372E-4	3.66618E-6	-3.52867E-4	8.25291E-4
ω	-3.16681E-4	-2.11368E-4	-1.82277E-2	-3.52867E-4	3.39908E-2	-7.94370E-2
M	7.40729E-4	4.94906E-4	4.26300E-2	8.25291E-4	-7.94370E-2	1.85799E-1

Date of computation: 2026-08-27 15:00 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

26.644

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

12 - 28*

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

1.04192

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-08-21.354742

Unit

Source

[2]

Last Observation

Value

2026-08-23.398388

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

13 (2)

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 2026QD3 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	1950-02-14 07:36	> 1 w	0.1942254	0.1031915	0.3992938
EARTH	1956-02-12 17:28	> 1 w	0.1416372	0.0925536	0.3206265
EARTH	1962-02-11 05:57	> 1 d	0.1003978	0.0882923	0.1696862
EARTH	1968-02-11 15:30	> 1 d	0.0885174	0.0876547	0.0415300
EARTH	1974-02-11 19:14	> 1 d	0.1204507	0.0883766	0.2313719
EARTH	1980-02-13 18:44	> 1 d	0.1878810	0.0896292	0.3106962
EARTH	2014-08-22 00:02	> 1 d	0.1300221	0.0432372	0.1493364
EARTH	2020-08-23 18:02	> 1 d	0.0664572	0.0441733	0.0627539
EARTH	2026-08-25 13:52	< 1 min	0.0444463	0.0438117	0.0002115
EARTH	2032-08-26 00:07	> 1 d	0.0600772	0.0442959	0.0566937
EARTH	2038-08-27 09:10	> 1 d	0.1040857	0.0446639	0.1562346
EARTH	2044-08-27 06:18	330.2	0.1628569	0.0472623	0.2329241
EARTH	2051-02-14 03:55	> 1 w	0.1828451	0.0990251	0.2470565
EARTH	2057-02-11 19:48	> 1 d	0.1294444	0.0894081	0.2434957
EARTH	2063-02-11 15:54	> 1 d	0.0933273	0.0863396	0.1393282
EARTH	2069-02-11 06:41	> 1 d	0.0898333	0.0859613	0.1292249
EARTH	2075-02-12 14:29	> 1 w	0.1305519	0.0869132	0.4467964
EARTH	2109-08-20 20:10	> 1 w	0.1923439	0.0432989	0.8333440
EARTH	2115-08-24 04:10	> 1 w	0.1120020	0.0451315	0.7135790
EARTH	2121-08-25 16:41	> 1 w	0.0568135	0.0457492	0.3555279

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
289.02663354	228.30723192	0.04399364	MINIMUM
73.54954936	37.31926465	0.08567609	MINIMUM
1.62386911	314.05840622	0.35615807	SADDLE
181.34618288	131.65289262	0.56521932	SADDLE
357.88666521	129.14179772	1.86145901	SADDLE
175.71413345	306.80513281	2.33011519	MAXIMUM

Download:

MOID Plots

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