Asteroids

2013SR help

Last update: 2025-06-12 09:51 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Amor

Perihelion (q)

1.029

Aphelion (Q)

1.982

Eccentricity (e)

0.316

Inclination (i)

7.5

deg

Orbit period (P)

674.8

Earth MOID

0.06990

U parameter

7.6

Next Earth close approach

Date

2037-10-25

Nominal distance (from Earth center)

0.1077

16110992

Maximum Brightness

21.6

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

24.1

mag

Diameter

40 - 90*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2013-09-23

Observatory

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.505565

1-sigma variation

0.000669

Unit

Eccentricity (e)

Value

0.316231

1-sigma variation

0.000285

Unit

Inclination (i)

Value

7.4655

1-sigma variation

0.0060

Unit

Long. of Ascending Node (Ω)

Value

0.0934

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

43.7277

1-sigma variation

0.0029

Unit

Mean Anomaly (M)

Value

80.36062

1-sigma variation

1.57667

Unit

Perihelion distance

Value

1.029458

1-sigma variation

Unit

Aphelion distance

Value

1.981672

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.099787

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.760142

1-sigma variation

Unit

MOID

Value

0.069898

1-sigma variation

Unit

Orbit Period

Value

674.7576

1-sigma variation

Unit

U parameter

Value

7.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.47868E-7	1.90499E-7	4.00408E-6	3.64345E-8	-1.93627E-6	-1.05515E-3
e	1.90499E-7	8.10278E-8	1.70311E-6	1.54925E-8	-8.23508E-7	-4.48804E-4
i	4.00408E-6	1.70311E-6	3.57991E-5	3.26447E-7	-1.73175E-5	-9.43340E-3
Ω	3.64345E-8	1.54925E-8	3.26447E-7	3.85659E-9	-1.61084E-7	-8.58365E-5
ω	-1.93627E-6	-8.23508E-7	-1.73175E-5	-1.61084E-7	8.41699E-6	4.56172E-3
M	-1.05515E-3	-4.48804E-4	-9.43340E-3	-8.58365E-5	4.56172E-3	2.48588E0

Date of computation: 2025-06-12 09:51 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

[1]

Taxonomy (all)

Value

Unit

Source

[2]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

24.091

Unit

mag

Source

[3]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[3]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[4]

Diameter

Value

40 - 90*

Unit

Source

[4]

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]	EARN	1.) Maxime Devogèle et al 2019 AJ 158 196
[2]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[3]	ESA Aegis	ESA orbit determination and impact monitoring system
[4]	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

4257

Unit

Source

[1]

Normalized RMS of residuals

Value

0.503529

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2013-09-23.22473

Unit

Source

[2]

Last Observation

Value

2013-10-20.20604

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

70 (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

Close Approaches for 2013SR 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	1952-10-12 17:17	> 1 w	0.0698218	0.0679849	0.0118862
EARTH	1989-09-29 04:12	> 1 d	0.1634060	0.0526735	0.0925295
EARTH	2013-10-12 08:28	< 1 min	0.0697874	0.0696082	0.0000597
MARS	2027-04-02 21:32	> 1 d	0.0374995	0.0061195	0.0410528
EARTH	2037-10-25 19:39	> 1 w	0.1076953	0.0285839	0.0600164
EARTH	2098-10-03 00:04	> 1 d	0.1291913	0.0594574	0.0574861
EARTH	2122-10-05 20:18	> 1 d	0.1115900	0.0638162	0.0287826

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
341.68430519	277.10554809	0.06989769	MINIMUM
180.29674262	121.15013273	0.98162398	SADDLE
358.33459239	119.83457347	2.03567224	SADDLE
178.29643822	299.70985295	2.97063780	MAXIMUM

Download:

MOID Plots

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