Asteroids

217796 2000TO64 help

Last update: 2024-04-26 16:31 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Amor

Perihelion (q)

1.044

Aphelion (Q)

4.443

Eccentricity (e)

0.619

Inclination (i)

37.5

deg

Orbit period (P)

1659.6

Earth MOID

0.05385

U parameter

0.0

Next Earth close approach

Date

2041-10-30

Nominal distance (from Earth center)

0.15633

23386057

Maximum Brightness

15.3

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

17.1

mag

Diameter

980

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2000-10-07

Observatory

Lowell Observatory-LONEOS

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)
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

2.743302

1-sigma variation

1.639E-8

Unit

Eccentricity (e)

Value

0.619406

1-sigma variation

2.336E-8

Unit

Inclination (i)

Value

37.5495

1-sigma variation

1.518E-5

Unit

Long. of Ascending Node (Ω)

Value

223.6942

1-sigma variation

4.059E-6

Unit

Arg. of Perihelion (ω)

Value

177.7692

1-sigma variation

2.388E-5

Unit

Mean Anomaly (M)

Value

57.71895

1-sigma variation

0.00001

Unit

Perihelion distance

Value

1.044085

1-sigma variation

Unit

Aphelion distance

Value

4.442520

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

3.428594

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.053908

1-sigma variation

Unit

MOID

Value

0.053849

1-sigma variation

Unit

Orbit Period

Value

1659.6212

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.68515E-16	7.30310E-18	3.44010E-14	-6.19437E-15	1.71184E-13	-1.87292E-13
e	7.30310E-18	5.45799E-16	3.61013E-14	-8.66110E-14	1.55371E-13	-2.41954E-14
i	3.44010E-14	3.61013E-14	2.30536E-10	-7.76213E-12	3.51906E-11	-2.35679E-11
Ω	-6.19437E-15	-8.66110E-14	-7.76213E-12	1.64716E-11	-5.58309E-11	9.27983E-12
ω	1.71184E-13	1.55371E-13	3.51906E-11	-5.58309E-11	5.70186E-10	-1.54514E-10
M	-1.87292E-13	-2.41954E-14	-2.35679E-11	9.27983E-12	-1.54514E-10	1.33448E-10

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

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

S/Sr

Unit

Source

[1]

[2]

Taxonomy (all)

Value

Sq,Sk,Sr

Unit

Source

[3]

[4]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

17.145

Unit

mag

Source

[5]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[5]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.266

Unit

Source

[1]

Diameter

Value

980

Unit

Source

[1]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

0.48

Unit

V-R

Source

[6]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Radar R

Visual S

Unit

Source

[7]

[8]

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Sources

No.	Name	Additional
[1]	EARN	1.) N. G. Simion et al, Spectral properties of near-Earth objects with low-Jovian Tisserand invariant (2021)
[2]	EARN	1.) DeMeo, F.E. et al. (2014) Icarus 227, 112-122. (Mars encounters cause fresh surfaces on some near-Earth asteroids) (contains taxonomic classification of 249 NEAs)
[3]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[4]	EARN	1.) Hicks, M. & K. Lawrence (2009) href="http://www.astronomerstelegram.org/?read=2323"> ATel#2323 (Planetary radar targets 1999 AP10, 2000 TO64, 2000 UJ1, and 2000 XK44: Four S-complex near-Earth asteroids) 2.) Hicks, M. et al. (2009) href="http://www.astronomerstelegram.org/?read=2283"> ATel#2283 (Long-slit CCD spectroscopy of planetary radar targets 1999 AP10, 2000 TO64, and 2000 UJ1) 3.) Somers, J.M. et al. (2010) DPS 42, 1316. (abstract) (Optical Characterization Of Planetary Radar Targets, Low-deltaV, And Potentially Hazardous Asteroids: Results From 2009-2010) 4.) Thomas, C.A. et al. (2014) Icarus 228, 217-246. (Physical characterization of Warm Spitzer-observed near-Earth objects) 5.) DeMeo, F.E. et al. (2014) Icarus 227, 112-122. (Mars encounters cause fresh surfaces on some near-Earth asteroids) (contains taxonomic classification of 249 NEAs)
[5]	ESA ODIM	ESA orbit determination and impact monitoring system
[6]	EARN	1.) Betzler, A. et al. (2010) MPB 37, 95-97. (Photometric Observations of the Near-Earth Asteroids 1999 AP10 2000 TO64, 2000 UJ1, 2000 XK44, 2001 MZ7, 2003 QO104, 2005 RQ6, 2005 WJ56, and 2009 UN3)
[7]	EARN	1.) href="http://echo.jpl.nasa.gov/asteroids/index.html">JPL's NEO Radar Detection Program Webpage
[8]	EARN	1.) Hicks, M. & K. Lawrence (2009) href="http://www.astronomerstelegram.org/?read=2323"> ATel#2323 (Planetary radar targets 1999 AP10, 2000 TO64, 2000 UJ1, and 2000 XK44: Four S-complex near-Earth asteroids) 2.) Hicks, M. et al. (2009) href="http://www.astronomerstelegram.org/?read=2283"> ATel#2283 (Long-slit CCD spectroscopy of planetary radar targets 1999 AP10, 2000 TO64, and 2000 UJ1)

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

7526

Unit

Source

[1]

Unobserved

Value

1076

Unit

Source

[1]

Normalized RMS of residuals

Value

0.47311

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2000-10-07.46187

Unit

Source

[2]

Last Observation

Value

2021-05-16.26881

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

274 (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

2009-11-08

Unit

Source

[3]

Last Observation

Value

2009-11-10

Unit

Source

[3]

Delay (Discarded)

Value

3 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

3 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

6 (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 217796 2000TO64 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
EARTH	2009-11-10 11:21	< 1 s	0.1136101	0.1136101	0.0000000
EARTH	2041-10-30 18:10	< 1 min	0.1563261	0.1563210	0.0000017
EARTH	2082-11-14 22:03	< 1 min	0.1924543	0.1924442	0.0000034

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