Asteroids

2017TS3 help

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

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.966

Aphelion (Q)

4.036

Eccentricity (e)

0.614

Inclination (i)

4.9

deg

Orbit period (P)

1444.4

Earth MOID

0.01815

U parameter

0.0

Next Earth close approach

Date

2113-11-03

Nominal distance (from Earth center)

0.09162

13706003

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

22.2

mag

Diameter

100 - 220*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2017-10-10

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

2.500697

1-sigma variation

4.202E-9

Unit

Eccentricity (e)

Value

0.613883

1-sigma variation

8.047E-9

Unit

Inclination (i)

Value

4.9102

1-sigma variation

2.349E-6

Unit

Long. of Ascending Node (Ω)

Value

239.6593

1-sigma variation

1.190E-5

Unit

Arg. of Perihelion (ω)

Value

185.6645

1-sigma variation

1.239E-5

Unit

Mean Anomaly (M)

Value

53.37227

1-sigma variation

1.090E-6

Unit

Perihelion distance

Value

0.965562

1-sigma variation

Unit

Aphelion distance

Value

4.035833

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

2.993322

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.020856

1-sigma variation

Unit

MOID

Value

0.018153

1-sigma variation

Unit

Orbit Period

Value

1444.4089

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.76582E-17	-1.00702E-17	-1.15342E-15	6.91324E-15	-1.76174E-14	-2.79712E-15
e	-1.00702E-17	6.47485E-17	-1.12706E-15	2.52615E-14	1.34181E-14	-4.02695E-15
i	-1.15342E-15	-1.12706E-15	5.51978E-12	-2.58589E-11	2.46888E-11	6.26029E-13
Ω	6.91324E-15	2.52615E-14	-2.58589E-11	1.41617E-10	-1.32518E-10	-3.98467E-12
ω	-1.76174E-14	1.34181E-14	2.46888E-11	-1.32518E-10	1.53515E-10	1.51076E-12
M	-2.79712E-15	-4.02695E-15	6.26029E-13	-3.98467E-12	1.51076E-12	1.18843E-12

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

22.16

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

100 - 220*

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

1569

Unit

Source

[1]

Unobserved

Value

1523

Unit

Source

[1]

Normalized RMS of residuals

Value

0.558074

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2017-10-10.29099

Unit

Source

[2]

Last Observation

Value

2022-01-26.49033

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

287 (5)

Unit

Source

[1]

Radar Summary

First Observation
Last Observation
Delay (Discarded)
Doppler (Discarded)
Total Optical Observations (Discarded)

Radar

Value

Unit

Source

First Observation

Value

2021-11-01

Unit

Source

[3]

Last Observation

Value

2021-11-01

Unit

Source

[3]

Delay (Discarded)

Value

1 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

1 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

2 (0)

Unit

Source

[1]

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
[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

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 2017TS3 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	1967-01-18 14:20	< 1 min	0.1891385	0.1891357	0.0000009
EARTH	1970-10-06 10:10	< 1 min	0.1454624	0.1454595	0.0000010
EARTH	2017-12-22 09:56	< 1 min	0.0464311	0.0464310	0.0000000
EARTH	2021-11-02 05:50	< 1 s	0.0355372	0.0355372	0.0000000
EARTH	2113-11-03 13:42	< 1 min	0.0916190	0.0916167	0.0000008
EARTH	2117-11-17 20:20	< 1 min	0.0399715	0.0399708	0.0000002
EARTH	2121-12-04 22:39	< 1 min	0.0430767	0.0430761	0.0000002
EARTH	2125-12-20 14:42	< 1 min	0.0951040	0.0951024	0.0000005

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
353.20781705	310.98701038	0.01774766	MINIMUM
359.21739997	143.04645346	1.98035724	SADDLE
179.82887270	143.78406146	3.02221550	SADDLE
179.80639157	323.77713455	5.02374968	MAXIMUM

Download:

MOID Plots

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