Asteroids

2005QK76

Last update: 2023-03-30 21:00 UTC

Orbital Properties

Epoch

60000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.674

Aphelion (Q)

2.120

Eccentricity (e)

0.517

Inclination (i)

22.9

deg

Orbit period (P)

603.1

Earth MOID

0.00056

U parameter

9.0

Next Earth close approach

Date

2025-03-03

Nominal distance (from Earth center)

0.11242

16817960

Maximum Brightness

123.3

mag

Risk

Object is in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

25.2

mag

Diameter

30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2005-08-30

Observatory

Steward Observatory, Kitt Peak-Spacewatch

Orbit Visualiser

Click the button to start Orbit Visualiser

External links

Proper elements

Epoch

Near present day

Near middle of observation arc

Orbit properties

Epoch
Semimajor Axis
Eccentricity (e)
Inclination (i)
Ascending Node (Ω)
Arg. of Perihelion (ω)
Mean Anomaly (M)
Perihelion
Aphelion
Asc. Node-Earth Sep.
Desc. Node-Earth Sep.
MOID
Orbit Period
U parameter

Value

1-sigma variation

Unit

Epoch

Value

60000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.397009

1-sigma variation

0.005018

Unit

Eccentricity (e)

Value

0.517462

1-sigma variation

0.002242

Unit

Inclination (i)

Value

22.8618

1-sigma variation

0.0965

Unit

Ascending Node (Ω)

Value

337.4428

1-sigma variation

0.0061

Unit

Arg. of Perihelion (ω)

Value

266.2181

1-sigma variation

0.0889

Unit

Mean Anomaly (M)

Value

247.99175

1-sigma variation

22.62370

Unit

Perihelion

Value

0.674109

1-sigma variation

Unit

Aphelion

Value

2.119908

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.048614

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.000931

1-sigma variation

Unit

MOID

Value

0.000563

1-sigma variation

Unit

Orbit Period

Value

603.1109

1-sigma variation

Unit

U parameter

Value

9.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.51813E-5	1.12499E-5	4.83906E-4	-3.04159E-5	4.46323E-4	-1.13528E-1
e	1.12499E-5	5.02605E-6	2.16160E-4	-1.35891E-5	1.99394E-4	-5.07194E-2
i	4.83906E-4	2.16160E-4	9.31722E-3	-5.84151E-4	8.57674E-3	-2.18165E0
Ω	-3.04159E-5	-1.35891E-5	-5.84151E-4	3.67453E-5	-5.39105E-4	1.37128E-1
ω	4.46323E-4	1.99394E-4	8.57674E-3	-5.39105E-4	7.91144E-3	-2.01221E0
M	-1.13528E-1	-5.07194E-2	-2.18165E0	1.37128E-1	-2.01221E0	5.11832E2

Date of computation: 2022-11-23 04:56 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

25.18

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[2]

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

Unit

Source

[-]

Diameter

Value

30*

Unit

Source

[3]

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

[-]

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Sources

No.	Name	Additional
[1]	ESA ODIM	ESA orbit determination and impact monitoring system
[2]	NEODyS	NEO Dynamic Site: https://newton.spacedys.com/neodys2
[3]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

Source

[1]

Unobserved

Value

6420

Unit

Source

[1]

Astrometry Summary

RMS of Residuals
First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

RMS of Residuals

Value

1.01595

Unit

arcsec

Source

[1]

First Observation

Value

2005-08-30.26872

Unit

Source

[2]

Last Observation

Value

2005-08-31.94669

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

14 (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

[3]

Last Observation

Value

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[1]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA ODIM	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 2005QK76 from 1950 to 2123

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	1954-02-18 02:28	> 1 mo	0.1722342	0.0085177	1.4323291
EARTH	1967-08-26 20:51	> 1 mo	0.0411886	0.0311455	0.6117655
EARTH	1987-03-07 00:48	> 1 mo	0.1644054	0.0097031	0.6401110
EARTH	1992-02-22 02:24	> 1 w	0.0990963	0.0034268	0.5063643
EARTH	2005-08-27 01:12	< 1 min	0.0323536	0.0319523	0.0001338
EARTH	2025-03-03 15:46	> 1 mo	0.1124211	0.0034477	0.7299033
EARTH	2030-02-18 08:32	> 1 mo	0.1710360	0.0045051	0.8357617
EARTH	2038-09-04 20:29	> 1 mo	0.1788934	0.0237391	0.9725995
EARTH	2043-08-23 22:38	> 1 mo	0.0989570	0.0253787	1.0049978
EARTH	2063-02-27 06:05	> 1 mo	0.0124827	0.0016112	0.7319909
EARTH	2068-02-18 12:08	> 1 mo	0.1814919	0.0030621	4.7032756
EARTH	2081-09-01 11:35	> 1 mo	0.1114656	0.0250443	17.3281886
EARTH	2086-08-24 05:18	> 1 mo	0.0848466	0.0258011	20.5225366
EARTH	2111-03-07 19:05	> 1 mo	0.1605880	0.0026018	25.0246419
EARTH	2116-02-26 07:05	> 1 mo	0.0373531	0.0037760	23.9421800

Download as:

2005QK76

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS
2030-02-26.344	62558.344	0.194	0.000	0.08 ± 0.247	2.91E4	3.01E-5	7.61E-5	-3.58
2036-02-26.827	64749.827	-0.155	0.000	0.91 ± 0.261	5.71E7	8.47E-9	2.12E-8	-7.38
2038-02-26.288	65480.288	-1.837	0.000	1.02 ± 0.228	6.03E5	1.39E-7	3.33E-7	-6.23
2038-02-26.304	65480.304	-1.232	0.000	0.61 ± 0.240	2.20E4	1.58E-5	3.85E-5	-4.17
2038-02-26.314	65480.314	-0.738	1.984	1.15 ± 0.242	7.48E5	7.72E-9	1.85E-8	-7.49
2041-02-26.072	66576.072	-0.727	0.000	0.65 ± 0.196	1.04E7	6.11E-8	1.51E-7	-6.66
2048-02-26.794	69132.794	-0.674	0.000	1.05 ± 0.243	7.13E4	3.79E-6	9.36E-6	-5.00
2048-02-26.795	69132.795	-0.540	0.000	1.11 ± 0.243	1.67E4	1.43E-5	3.55E-5	-4.42
2059-02-26.524	73150.524	-2.309	3.498	1.15 ± 0.225	8.93E4	4.52E-11	1.04E-10	-10.10
2083-02-26.464	81916.464	-3.338	0.000	0.58 ± 0.222	1.25E5	2.33E-8	5.36E-8	-7.61
2105-02-26.910	89951.910	-4.559	0.000	0.33 ± 0.220	1.95E6	1.36E-11	3.04E-11	-10.98
2107-02-27.382	90682.382	-3.833	0.000	1.05 ± 0.222	2.52E5	1.15E-9	2.61E-9	-9.06
2107-02-27.387	90682.387	-3.862	0.000	0.16 ± 0.345	3.69E5	1.37E-9	3.11E-9	-8.99
2108-02-27.625	91047.625	-4.912	0.000	0.74 ± 0.216	2.32E5	1.65E-11	3.66E-11	-10.92


Based on 14 optical observations (of which 0 are rejected as outliers) from 2005/08/30.269 to 2005/08/31.947.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.15 and 1.15 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 4.0, Date of computation=20220711 102457.520 UTC.

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