Asteroids

2010TD54 help

Last update: 2024-04-27 12:42 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.705

Aphelion (Q)

3.236

Eccentricity (e)

0.642

Inclination (i)

4.3

deg

Orbit period (P)

1010.4

Earth MOID

0.00150

U parameter

6.8

Next Earth close approach

Date

2033-03-02

Nominal distance (from Earth center)

0.10244

15324720

Maximum Brightness

27.4

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

28.8

mag

Diameter

5 - 10*

Taxonomic type

Rotation period (T)

0.01170

Discovery Information

Discovery Date

2010-10-09

Observatory

Mt. Lemmon Survey

Orbit Visualiser

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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

60400.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.970636

1-sigma variation

0.000246

Unit

Eccentricity (e)

Value

0.642195

1-sigma variation

0.000067

Unit

Inclination (i)

Value

4.2955

1-sigma variation

0.0011

Unit

Long. of Ascending Node (Ω)

Value

18.1438

1-sigma variation

0.0344

Unit

Arg. of Perihelion (ω)

Value

76.6039

1-sigma variation

0.0369

Unit

Mean Anomaly (M)

Value

294.32132

1-sigma variation

0.51066

Unit

Perihelion distance

Value

0.705104

1-sigma variation

Unit

Aphelion distance

Value

3.236167

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.010635

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.358705

1-sigma variation

Unit

MOID

Value

0.001500

1-sigma variation

Unit

Orbit Period

Value

1010.4339

1-sigma variation

Unit

U parameter

Value

6.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	6.04692E-8	1.65932E-8	-2.58789E-7	-8.46020E-6	9.08270E-6	-1.25574E-4
e	1.65932E-8	4.55399E-9	-7.09719E-8	-2.32154E-6	2.49254E-6	-3.44582E-5
i	-2.58789E-7	-7.09719E-8	1.11023E-6	3.62070E-5	-3.88602E-5	5.37416E-4
Ω	-8.46020E-6	-2.32154E-6	3.62070E-5	1.18366E-3	-1.27075E-3	1.75689E-2
ω	9.08270E-6	2.49254E-6	-3.88602E-5	-1.27075E-3	1.36430E-3	-1.88616E-2
M	-1.25574E-4	-3.44582E-5	5.37416E-4	1.75689E-2	-1.88616E-2	2.60772E-1

Date of computation: 2024-04-23 10:08 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

0.01170

Unit

Source

[1]

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

[1]

Taxonomy (all)

Value

Unit

Source

[1]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

28.806

28.75

Unit

mag

Source

[2]

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[2]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[3]

Diameter

Value

5 - 10*

Unit

Source

[3]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

0.46

Unit

V-R

Source

[1]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Visual S

Unit

Source

[4]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) Hicks, M. & H.Rhoades (2010) href="http://www.astronomerstelegram.org/?read=2984"> ATel#2984 (The near-Earth asteroid 2010 TD54: The fastest rotating natural body known in the solar system?)
[2]	ESA ODIM	ESA orbit determination and impact monitoring system
[3]	Estimation	Estimated from absolute magnitude
[4]	EARN	1.) Popescu, M. et al. (2011) Astron. Astrophys. 535, A15. (Spectral properties of eight near-Earth asteroids) (1917, 8567,16960,164400,188452,2001SG286,2010TD54)

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

Source

[1]

Unobserved

Value

4946

Unit

Source

[1]

Normalized RMS of residuals

Value

0.497958

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2010-10-09.33035

Unit

Source

[2]

Last Observation

Value

2010-10-12.32899

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

110 (2)

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 2010TD54 from 1950 to 2124

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
VENUS	1970-05-21 04:49	> 1 w	0.0253143	0.0250874	0.0101845
EARTH	1979-10-10 07:16	> 1 d	0.0345528	0.0009205	0.0403362
EARTH	1987-03-07 23:10	> 1 d	0.1452218	0.0328243	0.0404262
EARTH	2010-10-12 10:49	< 1 s	0.0003462	0.0003460	0.0000001
4 Vesta	2029-10-09 06:34	805.7	0.0097204	0.0008955	0.0169229
MARS	2030-01-20 05:48	> 1 d	0.0107291	0.0103034	0.0068990
EARTH	2033-03-02 23:11	> 1 d	0.1024394	0.0327306	0.0425617
EARTH	2044-03-18 12:14	> 1 d	0.1133845	0.0325166	0.0736218
EARTH	2068-10-17 18:10	> 1 d	0.0583479	0.0039602	0.0383306
EARTH	2102-02-28 14:07	> 1 w	0.1340383	0.0284837	0.1394405

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