Asteroids

2026QD help

Last update: 2026-08-20 13:15 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Aten

Perihelion (q)

0.373

Aphelion (Q)

1.083

Eccentricity (e)

0.488

Inclination (i)

22.9

deg

Orbit period (P)

226.9

Earth MOID

0.01758

U parameter

6.7

Next Earth close approach

Date

2031-08-26

Nominal distance (from Earth center)

0.12612

18867865

Maximum Brightness

23.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.2

mag

Diameter

15 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-08-17

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.727978

1-sigma variation

0.000037

Unit

Eccentricity (e)

Value

0.488083

1-sigma variation

0.000149

Unit

Inclination (i)

Value

22.9107

1-sigma variation

0.0154

Unit

Long. of Ascending Node (Ω)

Value

145.1538

1-sigma variation

0.0003

Unit

Arg. of Perihelion (ω)

Value

17.9930

1-sigma variation

0.0023

Unit

Mean Anomaly (M)

Value

22.82454

1-sigma variation

0.02623

Unit

Perihelion distance

Value

0.372664

1-sigma variation

Unit

Aphelion distance

Value

1.083291

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.608688

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.022346

1-sigma variation

Unit

MOID

Value

0.017581

1-sigma variation

Unit

Orbit Period

Value

226.8693

1-sigma variation

Unit

U parameter

Value

6.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.39426E-9	-5.56618E-9	-5.76458E-7	1.28813E-8	-8.44503E-8	9.78898E-7
e	-5.56618E-9	2.22284E-8	2.30175E-6	-5.14354E-8	3.37754E-7	-3.90997E-6
i	-5.76458E-7	2.30175E-6	2.38466E-4	-5.32869E-6	3.49413E-5	-4.04816E-4
Ω	1.28813E-8	-5.14354E-8	-5.32869E-6	1.19078E-7	-7.80925E-7	9.04631E-6
ω	-8.44503E-8	3.37754E-7	3.49413E-5	-7.80925E-7	5.16914E-6	-5.94675E-5
M	9.78898E-7	-3.90997E-6	-4.04816E-4	9.04631E-6	-5.94675E-5	6.87848E-4

Date of computation: 2026-08-20 13:15 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

26.189

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

15 - 30*

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

0.605882

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-08-17.286766

Unit

Source

[2]

Last Observation

Value

2026-08-19.442009

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

49 (0)

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 2026QD 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	1954-08-28 03:38	> 1 d	0.1446734	0.1057337	0.0139795
MERCURY	1959-12-12 21:57	> 1 d	0.0249165	0.0084774	0.0353442
EARTH	1962-08-16 02:54	377.2	0.1697381	0.1239226	0.0153796
EARTH	1967-08-16 14:18	318.3	0.0217161	0.0190743	0.0039922
MERCURY	1971-09-30 18:33	858.6	0.0122518	0.0098426	0.0093209
EARTH	1972-08-23 23:46	786.8	0.1149881	0.1006986	0.0048396
MERCURY	1983-07-20 02:32	564.2	0.0103643	0.0098542	0.0032649
EARTH	1985-08-15 06:02	38.1	0.0715177	0.0565147	0.0050699
EARTH	1990-08-20 11:11	569.9	0.0716010	0.0572007	0.0049120
MERCURY	1995-05-08 00:10	753.6	0.0167696	0.0095580	0.0128545
EARTH	1995-09-02 16:45	863.8	0.1810811	0.1692941	0.0040340
EARTH	2003-08-15 20:46	60.2	0.1098212	0.0894430	0.0068365
EARTH	2008-08-18 00:37	437.2	0.0426100	0.0289545	0.0049349
EARTH	2013-08-29 20:51	608.5	0.1583078	0.1496031	0.0029434
EARTH	2021-08-15 21:06	44.2	0.1526523	0.1469128	0.0019145
MERCURY	2023-04-17 17:11	193.8	0.0446964	0.0359761	0.0029183
EARTH	2026-08-16 21:43	< 1 min	0.0179267	0.0178996	0.0000090
EARTH	2031-08-26 03:04	201.2	0.1261239	0.1222062	0.0013105
MERCURY	2035-02-03 17:39	408.1	0.0352445	0.0172883	0.0061340
EARTH	2044-08-15 11:58	134.1	0.0433477	0.0278844	0.0055692
MERCURY	2046-11-22 00:41	740.7	0.0113034	0.0103465	0.0054773
EARTH	2049-08-22 04:34	801.6	0.0932914	0.0755288	0.0060466
EARTH	2054-09-04 20:16	1202.2	0.1961248	0.1785053	0.0061298
MERCURY	2058-09-09 18:02	1281.9	0.0203898	0.0098487	0.0236949
EARTH	2062-08-15 18:40	19.8	0.0848581	0.0465553	0.0131787
EARTH	2067-08-20 10:25	1125.2	0.0652094	0.0352283	0.0108075
EARTH	2072-09-01 10:47	> 1 d	0.1772461	0.1553676	0.0076192
EARTH	2080-08-15 13:19	132.8	0.1272155	0.0964327	0.0103353
EARTH	2085-08-17 16:08	444.6	0.0277895	0.0175250	0.0055673
EARTH	2090-08-28 20:07	518.9	0.1486163	0.1398492	0.0029508
MERCURY	2098-06-07 12:51	195.1	0.0128000	0.0099083	0.0022690
EARTH	2098-08-16 15:17	49.4	0.1673561	0.1628911	0.0014890
EARTH	2103-08-18 05:04	202.8	0.0175158	0.0169256	0.0012495
EARTH	2108-08-26 08:54	> 1 d	0.1251817	0.0945200	0.0106680
MERCURY	2110-03-26 21:06	> 1 d	0.0280740	0.0098892	0.0401210
EARTH	2121-08-17 01:46	752.0	0.0406570	0.0176620	0.0319040
EARTH	2126-08-24 06:41	> 1 d	0.1003147	0.0380398	0.0261675

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
147.19200585	219.87532833	0.01758131	MINIMUM
19.52553999	86.57528703	0.63568759	SADDLE
9.75103505	250.66448811	1.37624227	SADDLE
179.08851324	57.64495004	2.07076980	MAXIMUM

Download:

MOID Plots

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