Asteroids

2026HQ help

Last update: 2026-06-05 00:56 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.995

Aphelion (Q)

1.282

Eccentricity (e)

0.126

Inclination (i)

2.9

deg

Orbit period (P)

443.7

Earth MOID

0.00149

U parameter

5.2

Next Earth close approach

Date

Nominal distance (from Earth center)

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

30.8

mag

Diameter

1.8 - 4*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-04-17

Observatory

University of Arizona Catalina Sky 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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.138481

1-sigma variation

0.000013

Unit

Eccentricity (e)

Value

0.126299

1-sigma variation

0.000009

Unit

Inclination (i)

Value

2.8720

1-sigma variation

0.0004

Unit

Long. of Ascending Node (Ω)

Value

26.6002

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

205.6233

1-sigma variation

0.0017

Unit

Mean Anomaly (M)

Value

23.12928

1-sigma variation

0.00087

Unit

Perihelion distance

Value

0.994692

1-sigma variation

Unit

Aphelion distance

Value

1.282269

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.267801

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.002428

1-sigma variation

Unit

MOID

Value

0.001493

1-sigma variation

Unit

Orbit Period

Value

443.6975

1-sigma variation

Unit

U parameter

Value

5.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.58954E-10	1.14178E-10	4.57983E-9	2.79942E-9	-2.13873E-8	1.03034E-8
e	1.14178E-10	8.21284E-11	3.27863E-9	2.00891E-9	-1.52212E-8	7.29606E-9
i	4.57983E-9	3.27863E-9	1.33219E-7	8.09042E-8	-6.30061E-7	3.07089E-7
Ω	2.79942E-9	2.00891E-9	8.09042E-8	4.93545E-8	-3.79080E-7	1.83236E-7
ω	-2.13873E-8	-1.52212E-8	-6.30061E-7	-3.79080E-7	3.05401E-6	-1.51716E-6
M	1.03034E-8	7.29606E-9	3.07089E-7	1.83236E-7	-1.51716E-6	7.64954E-7

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

30.801

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

1.8 - 4*

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

0.8

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.761125

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-04-17.288456

Unit

Source

[2]

Last Observation

Value

2026-04-18.088378

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

54 (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

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 2026HQ 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	1977-02-01 06:32	> 1 w	0.1809534	0.1724427	0.0028373
EARTH	1977-06-09 09:14	640.0	0.1251851	0.1112544	0.0046943
EARTH	1988-05-08 02:32	700.3	0.0344097	0.0317581	0.0008885
EARTH	2015-03-29 16:56	127.6	0.0876157	0.0847792	0.0009458
EARTH	2015-07-23 22:41	> 1 d	0.1665892	0.1648374	0.0005850
EARTH	2026-04-18 12:47	< 1 s	0.0011031	0.0011029	0.0000001
EARTH	2043-04-09 09:32	409.3	0.0313456	0.0265409	0.0016016
EARTH	2043-08-08 18:55	> 1 d	0.1449296	0.1415943	0.0011157
EARTH	2049-02-15 13:17	> 1 w	0.1700679	0.1500700	0.0066761
EARTH	2049-07-05 17:29	> 1 d	0.0853781	0.0617683	0.0087823
EARTH	2072-04-06 03:09	> 1 d	0.0486470	0.0018643	0.0193056
EARTH	2072-08-19 01:35	> 1 w	0.1561694	0.1230608	0.0117385
EARTH	2078-05-31 17:50	> 1 mo	0.0401550	0.0350588	0.0132784
EARTH	2084-07-16 17:14	> 1 d	0.1973287	0.0499605	0.1255913
EARTH	2107-04-06 13:22	> 1 mo	0.0560104	0.0010584	0.3077385
EARTH	2107-08-24 05:38	> 1 mo	0.1607492	0.0878105	0.1786274
EARTH	2113-05-12 20:13	> 1 mo	0.0315702	0.0145567	0.2283699
EARTH	2119-07-16 16:49	> 1 w	0.1736113	0.0420439	0.1532160

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
338.47296159	102.52786109	0.00149263	MINIMUM
185.87537548	313.50143332	0.29425596	SADDLE
5.66226911	313.52968523	1.98376986	SADDLE
184.18292792	132.03622175	2.29291587	MAXIMUM

Download:

MOID Plots

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