Asteroids

2011BG59 help

Last update: 2026-03-17 23:26 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Amor

Perihelion (q)

1.037

Aphelion (Q)

1.986

Eccentricity (e)

0.314

Inclination (i)

9.0

deg

Orbit period (P)

678.5

Earth MOID

0.09008

U parameter

9.0

Next Earth close approach

Date

2037-01-17

Nominal distance (from Earth center)

0.09456

14146597

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.5

mag

Diameter

21 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2011-01-30

Observatory

Pan-STARRS 1, Haleakala

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

1.511140

1-sigma variation

0.008947

Unit

Eccentricity (e)

Value

0.313991

1-sigma variation

0.003812

Unit

Inclination (i)

Value

8.9522

1-sigma variation

0.0303

Unit

Long. of Ascending Node (Ω)

Value

314.4531

1-sigma variation

0.0469

Unit

Arg. of Perihelion (ω)

Value

137.5222

1-sigma variation

0.0147

Unit

Mean Anomaly (M)

Value

115.61209

1-sigma variation

14.19750

Unit

Perihelion distance

Value

1.036655

1-sigma variation

Unit

Aphelion distance

Value

1.985625

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.758107

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.120360

1-sigma variation

Unit

MOID

Value

0.090077

1-sigma variation

Unit

Orbit Period

Value

678.5089

1-sigma variation

Unit

U parameter

Value

9.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.00447E-5	3.41084E-5	2.71296E-4	4.19291E-4	1.30287E-4	-1.27022E-1
e	3.41084E-5	1.45342E-5	1.15604E-4	1.78667E-4	5.55053E-5	-5.41264E-2
i	2.71296E-4	1.15604E-4	9.19517E-4	1.42111E-3	4.41736E-4	-4.30518E-1
Ω	4.19291E-4	1.78667E-4	1.42111E-3	2.19634E-3	6.82557E-4	-6.65369E-1
ω	1.30287E-4	5.55053E-5	4.41736E-4	6.82557E-4	2.16447E-4	-2.06753E-1
M	-1.27022E-1	-5.41264E-2	-4.30518E-1	-6.65369E-1	-2.06753E-1	2.01570E2

Date of computation: 2026-03-17 23:26 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

25.525

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

21 - 50*

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

5545

Unit

Source

[1]

Normalized RMS of residuals

Value

0.679452

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2011-01-30.47535

Unit

Source

[2]

Last Observation

Value

2011-02-11.30652

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

18 (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

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 2011BG59 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	1959-01-18 05:07	> 1 mo	0.0983503	0.0898457	3.6155635
EARTH	1972-01-16 23:12	> 1 mo	0.0908851	0.0906453	0.2149307
EARTH	1985-01-15 21:50	> 1 mo	0.0905337	0.0904693	0.0344963
EARTH	1998-01-15 23:31	> 1 w	0.0909761	0.0906647	0.0248399
EARTH	2011-01-16 01:59	2.6	0.0911703	0.0899071	0.0004211
EARTH	2024-01-17 00:58	> 1 w	0.0902647	0.0902403	0.0048388
EARTH	2037-01-17 23:07	> 1 mo	0.0945642	0.0889307	0.3430434
EARTH	2050-01-21 20:24	> 1 mo	0.1334923	0.0826205	2.0294153
EARTH	2117-01-10 02:35	> 1 mo	0.1439795	0.0587768	1.7774644

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
17.43440211	14.61521092	0.08982838	MINIMUM
177.50906663	169.13273707	0.97984276	SADDLE
358.38924388	168.98677610	2.05153832	SADDLE
180.47269607	351.29361298	2.96597544	MAXIMUM

Download:

MOID Plots

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