Asteroids

2013TX68 help

Last update: 2026-07-30 11:21 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.745

Aphelion (Q)

2.581

Eccentricity (e)

0.552

Inclination (i)

1.1

deg

Orbit period (P)

783.6

Earth MOID

0.00021

U parameter

7.0

Next Earth close approach

Date

2028-10-22

Nominal distance (from Earth center)

0.09314

13933966

Maximum Brightness

24.1

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

25.3

mag

Diameter

23 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2013-10-06

Observatory

University of Arizona Catalina Sky Survey

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

1.663334

1-sigma variation

0.000243

Unit

Eccentricity (e)

Value

0.551941

1-sigma variation

0.000217

Unit

Inclination (i)

Value

1.0805

1-sigma variation

0.0019

Unit

Long. of Ascending Node (Ω)

Value

164.4794

1-sigma variation

0.0081

Unit

Arg. of Perihelion (ω)

Value

288.2491

1-sigma variation

0.0375

Unit

Mean Anomaly (M)

Value

302.04725

1-sigma variation

0.72040

Unit

Perihelion distance

Value

0.745271

1-sigma variation

Unit

Aphelion distance

Value

2.581396

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.004962

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.388954

1-sigma variation

Unit

MOID

Value

0.000215

1-sigma variation

Unit

Orbit Period

Value

783.5513

1-sigma variation

Unit

U parameter

Value

7.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.88468E-8	5.27438E-8	4.64297E-7	1.94863E-6	-9.09843E-6	-1.74758E-4
e	5.27438E-8	4.72738E-8	4.16152E-7	1.74670E-6	-8.15494E-6	-1.56634E-4
i	4.64297E-7	4.16152E-7	3.66594E-6	1.54318E-5	-7.18378E-5	-1.37883E-3
Ω	1.94863E-6	1.74670E-6	1.54318E-5	6.57807E-5	-3.02429E-4	-5.78681E-3
ω	-9.09843E-6	-8.15494E-6	-7.18378E-5	-3.02429E-4	1.40779E-3	2.70197E-2
M	-1.74758E-4	-1.56634E-4	-1.37883E-3	-5.78681E-3	2.70197E-2	5.18981E-1

Date of computation: 2026-07-30 11:21 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

25.302

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

23 - 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

[-]

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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

4683

Unit

Source

[1]

Normalized RMS of residuals

Value

0.439794

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2013-09-09.1991

Unit

Source

[2]

Last Observation

Value

2013-10-09.2149

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

39 (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

Filters

Initial Date: *

Final Date: *

Normalised Only accepted

Max residual (arcsec):

* - these fields are required

Plot

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 2013TX68 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	1966-10-23 09:04	> 1 d	0.1026514	0.0789709	0.0079077
EARTH	1969-03-11 16:40	247.6	0.0898331	0.0825623	0.0024237
EARTH	1984-01-28 15:42	> 1 w	0.1963425	0.1402656	0.0187005
EARTH	2013-10-13 08:09	< 1 min	0.0138999	0.0138730	0.0000090
EARTH	2016-03-08 00:28	1320.4	0.0336074	0.0002199	0.0129405
EARTH	2028-10-22 08:49	> 1 d	0.0931428	0.0120438	0.0286919
EARTH	2031-03-16 06:52	> 1 d	0.1502289	0.0581541	0.0306922
EARTH	2074-02-17 05:22	952.4	0.1343621	0.1247740	0.0031961
EARTH	2086-10-16 06:40	> 1 d	0.0304685	0.0110939	0.0111344
EARTH	2089-03-14 21:24	547.2	0.1293492	0.1103875	0.0063207

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
42.99281068	59.97410209	0.00021492	MINIMUM
316.37493503	275.90755275	0.01072254	MINIMUM
359.56021068	347.77674986	0.23908341	SADDLE
179.87782132	168.18564295	1.56517130	SADDLE
359.57970846	167.82089806	1.76168347	SADDLE
179.88997376	348.19470124	3.56513278	MAXIMUM

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MOID Plots

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

Level lines of the squared distance function

2013TX68

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS	TS
2044-03-06.048	67680.048	-2.597	0.000	0.63 ± 0.135	9.81E6	3.09E-9	1.83E0	-8.08	0


Based on 39 optical observations (of which 0 are rejected as outliers) from 2013/09/09.199 to 2013/10/09.215.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.27 and 1.27 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 4.0, Date of computation=20250805 130500.123 UTC.

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Download Impactor Table as: