Asteroids

2017NS5 help

Last update: 2025-07-15 00:51 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Aten

Perihelion (q)

0.725

Aphelion (Q)

1.227

Eccentricity (e)

0.257

Inclination (i)

43.9

deg

Orbit period (P)

352.2

Earth MOID

0.02510

U parameter

1.5

Next Earth close approach

Date

2041-01-12

Nominal distance (from Earth center)

0.18886

28253431

Maximum Brightness

24.3

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

20.7

mag

Diameter

190 - 400*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2017-07-10

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.976085

1-sigma variation

3.070E-8

Unit

Eccentricity (e)

Value

0.257146

1-sigma variation

3.193E-7

Unit

Inclination (i)

Value

43.9274

1-sigma variation

3.900E-5

Unit

Long. of Ascending Node (Ω)

Value

294.8038

1-sigma variation

2.536E-6

Unit

Arg. of Perihelion (ω)

Value

119.2871

1-sigma variation

9.404E-6

Unit

Mean Anomaly (M)

Value

302.32937

1-sigma variation

0.00013

Unit

Perihelion distance

Value

0.725089

1-sigma variation

Unit

Aphelion distance

Value

1.227081

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.026775

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.174310

1-sigma variation

Unit

MOID

Value

0.025097

1-sigma variation

Unit

Orbit Period

Value

352.2331

1-sigma variation

Unit

U parameter

Value

1.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.42182E-16	2.94049E-16	1.96010E-13	6.59146E-15	-2.00655E-13	-3.96893E-12
e	2.94049E-16	1.01936E-13	4.14523E-12	3.23437E-13	7.88785E-13	9.87058E-12
i	1.96010E-13	4.14523E-12	1.52083E-9	7.11243E-11	7.93507E-11	-4.82532E-10
Ω	6.59146E-15	3.23437E-13	7.11243E-11	6.43152E-12	1.83463E-12	3.33091E-12
ω	-2.00655E-13	7.88785E-13	7.93507E-11	1.83463E-12	8.84382E-11	9.02970E-10
M	-3.96893E-12	9.87058E-12	-4.82532E-10	3.33091E-12	9.02970E-10	1.79675E-8

Date of computation: 2025-07-15 00:51 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

[-]

Taxonomy (all)

Value

Unit

Source

[-]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

20.674

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

190 - 400*

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

1444

Unit

Source

[1]

Unobserved

Value

2207

Unit

Source

[1]

Normalized RMS of residuals

Value

0.556266

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2015-07-18.907962

Unit

Source

[2]

Last Observation

Value

2019-07-01.4337

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

202 (3)

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 2017NS5 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	1959-01-15 23:15	< 1 min	0.1720648	0.1720593	0.0000018
EARTH	1962-07-18 21:21	< 1 min	0.0421767	0.0421550	0.0000072
EARTH	1963-07-13 13:08	< 1 min	0.1635015	0.1634751	0.0000088
EARTH	1986-01-19 23:14	< 1 min	0.1711535	0.1711487	0.0000016
EARTH	1989-07-20 07:26	< 1 min	0.1037931	0.1037704	0.0000076
EARTH	1990-07-15 11:00	< 1 min	0.0979833	0.0979610	0.0000074
EARTH	2013-01-24 08:36	< 1 min	0.1992786	0.1992762	0.0000008
EARTH	2014-01-11 22:25	< 1 min	0.1945419	0.1945394	0.0000009
EARTH	2016-07-21 14:35	< 1 s	0.1732272	0.1732264	0.0000003
EARTH	2017-07-17 08:08	< 1 s	0.0343091	0.0343090	0.0000000
EARTH	2041-01-12 13:52	< 1 min	0.1888625	0.1888537	0.0000029
EARTH	2043-07-22 13:57	< 1 min	0.1801827	0.1801631	0.0000065
EARTH	2044-07-17 07:58	< 1 min	0.0310022	0.0309895	0.0000042
EARTH	2067-01-23 08:51	1.7	0.1859694	0.1859473	0.0000074
EARTH	2070-07-21 11:52	< 1 min	0.1325018	0.1324485	0.0000178
EARTH	2071-07-16 18:09	< 1 min	0.0738146	0.0737624	0.0000174
EARTH	2094-01-19 03:35	1.6	0.1689102	0.1689064	0.0000013
EARTH	2097-07-19 21:01	< 1 min	0.0682318	0.0681881	0.0000146
EARTH	2098-07-14 14:43	< 1 min	0.1385168	0.1384719	0.0000150
EARTH	2121-01-17 08:00	< 1 min	0.1710960	0.1710948	0.0000004
EARTH	2124-07-19 18:29	< 1 min	0.0345195	0.0345183	0.0000004
EARTH	2125-07-14 06:32	< 1 min	0.1756091	0.1756057	0.0000011

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
255.39111617	193.28885645	0.02509675	MINIMUM
51.96683511	15.18359616	0.16858094	MINIMUM
336.15779441	282.27963679	0.69178032	SADDLE
149.52872203	109.34177254	0.83554963	SADDLE
342.36771018	113.14257639	1.62150654	SADDLE
207.06239496	341.37402230	2.12719482	MAXIMUM

Download:

MOID Plots

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