Asteroids

461852 2006GY2 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.937

Aphelion (Q)

2.780

Eccentricity (e)

0.496

Inclination (i)

30.5

deg

Orbit period (P)

925.5

Earth MOID

0.00842

U parameter

0.3

Next Earth close approach

Date

2044-05-12

Nominal distance (from Earth center)

0.02868

4290319

Maximum Brightness

14.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

18.9

mag

Diameter

400 - 1000*

Taxonomic type

Rotation period (T)

2.25

Discovery Information

Discovery Date

2006-04-09

Observatory

Lincoln Laboratory ETS, New Mexico

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.858596

1-sigma variation

1.505E-8

Unit

Eccentricity (e)

Value

0.495971

1-sigma variation

5.055E-8

Unit

Inclination (i)

Value

30.5187

1-sigma variation

3.589E-6

Unit

Long. of Ascending Node (Ω)

Value

54.2421

1-sigma variation

1.406E-6

Unit

Arg. of Perihelion (ω)

Value

216.8558

1-sigma variation

2.096E-5

Unit

Mean Anomaly (M)

Value

242.82345

1-sigma variation

0.00004

Unit

Perihelion distance

Value

0.936786

1-sigma variation

Unit

Aphelion distance

Value

2.780405

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.334461

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.009198

1-sigma variation

Unit

MOID

Value

0.008419

1-sigma variation

Unit

Orbit Period

Value

925.4988

1-sigma variation

Unit

U parameter

Value

0.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.26582E-16	3.78112E-16	-1.75978E-14	3.60297E-15	1.44552E-13	-5.45042E-13
e	3.78112E-16	2.55531E-15	-1.48617E-13	4.59689E-14	1.02951E-12	-1.14947E-12
i	-1.75978E-14	-1.48617E-13	1.28815E-11	-3.18372E-12	-5.87394E-11	5.67527E-11
Ω	3.60297E-15	4.59689E-14	-3.18372E-12	1.97643E-12	1.35636E-11	-1.19614E-11
ω	1.44552E-13	1.02951E-12	-5.87394E-11	1.35636E-11	4.39218E-10	-4.53968E-10
M	-5.45042E-13	-1.14947E-12	5.67527E-11	-1.19614E-11	-4.53968E-10	1.34365E-9

Date of computation: 2025-09-10 00:30 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

2.25

Unit

Source

[3]

Quality

Value

Unit

Source

[3]

Amplitude

Value

0.1

Unit

mag

Source

[3]

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

[1]

Taxonomy (all)

Value

Unit

Source

[2]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

18.865

Unit

mag

Source

[4]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[4]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[5]

Diameter

Value

400 - 1000*

Unit

Source

[5]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

Unit

mag

Source

[-]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Radar R

Unit

Source

[6]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) Alexey V. Sergeyev and Benoit Carry A&A, 652 (2021) A59
[2]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[3]	EARN	1.) Higley, S. et al. (2008) MPB 35, 175-177. ("DO WHAT YOU CAN PHOTOMETRY": UNFILTERED PHOTOMETRY OF NEOS 2005 PJ2, 2005 WC1, AND 2006 GY2)
[4]	ESA Aegis	ESA orbit determination and impact monitoring system
[5]	Estimation	Estimated from absolute magnitude
[6]	EARN	1.) href="http://echo.jpl.nasa.gov/asteroids/index.html">JPL's NEO Radar Detection Program Webpage 2.) Benner, L.A.M. et al. (2006) CBET HREF="http://www.cbat.eps.harvard.edu/iau/cbet/000500/CBET000534.txt"> 534. (2006 GY2) (radar observations and binary asteroid detection)

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

3721

Unit

Source

[1]

Unobserved

Value

3418

Unit

Source

[1]

Normalized RMS of residuals

Value

0.498084

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2006-04-09.33747

Unit

Source

[2]

Last Observation

Value

2016-06-16.1657

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

304 (4)

Unit

Source

[1]

Radar Summary

First Observation
Last Observation
Delay (Discarded)
Doppler (Discarded)
Total Optical Observations (Discarded)

Radar

Value

Unit

Source

First Observation

Value

2006-05-13

Unit

Source

[3]

Last Observation

Value

2006-05-16

Unit

Source

[3]

Delay (Discarded)

Value

6 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

3 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

9 (0)

Unit

Source

[1]

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
[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 461852 2006GY2 from 1950 to 2125

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1958-05-17 04:50	< 1 min	0.0303214	0.0303111	0.0000034
EARTH	2006-05-16 04:29	< 1 s	0.0171021	0.0171021	0.0000000
EARTH	2044-05-12 20:35	< 1 min	0.0286790	0.0286710	0.0000027
EARTH	2087-05-08 02:35	2.7	0.1171848	0.1170853	0.0000332

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
337.95209996	131.07323382	0.00675274	MINIMUM
187.37533938	349.01093301	1.87451654	SADDLE
7.46787666	357.35885702	1.89064612	SADDLE
176.71784218	163.13681683	3.76240148	MAXIMUM

Download:

MOID Plots

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