Asteroids

2017WO1 help

Last update: 2024-04-19 23:53 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Amor

Perihelion (q)

1.019

Aphelion (Q)

1.244

Eccentricity (e)

0.099

Inclination (i)

13.3

deg

Orbit period (P)

439.5

Earth MOID

0.07118

U parameter

1.0

Next Earth close approach

Date

2029-05-19

Nominal distance (from Earth center)

0.08991

13450568

Maximum Brightness

20.5

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

24.2

mag

Diameter

40 - 90*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2017-11-18

Observatory

Pan-STARRS 1, Haleakala

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

1.131358

1-sigma variation

1.660E-8

Unit

Eccentricity (e)

Value

0.099340

1-sigma variation

0.000001

Unit

Inclination (i)

Value

13.3135

1-sigma variation

4.858E-5

Unit

Long. of Ascending Node (Ω)

Value

233.0227

1-sigma variation

1.256E-5

Unit

Arg. of Perihelion (ω)

Value

73.2341

1-sigma variation

0.0004

Unit

Mean Anomaly (M)

Value

203.73101

1-sigma variation

0.00030

Unit

Perihelion distance

Value

1.018969

1-sigma variation

Unit

Aphelion distance

Value

1.243748

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.078262

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.164971

1-sigma variation

Unit

MOID

Value

0.071179

1-sigma variation

Unit

Orbit Period

Value

439.5403

1-sigma variation

Unit

U parameter

Value

1.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.75418E-16	1.86943E-14	6.40915E-13	-7.84905E-14	-4.57552E-12	2.41604E-12
e	1.86943E-14	1.57866E-12	3.08501E-11	-8.02721E-12	-2.05916E-10	2.76711E-11
i	6.40915E-13	3.08501E-11	2.35966E-9	-3.81465E-11	-1.58197E-8	1.20851E-8
Ω	-7.84905E-14	-8.02721E-12	-3.81465E-11	1.57650E-10	1.83137E-10	6.00963E-10
ω	-4.57552E-12	-2.05916E-10	-1.58197E-8	1.83137E-10	1.22808E-7	-9.76348E-8
M	2.41604E-12	2.76711E-11	1.20851E-8	6.00963E-10	-9.76348E-8	9.27434E-8

Date of computation: 2024-02-21 14:29 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

24.17

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

40 - 90*

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 ODIM	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

2189

Unit

Source

[1]

Unobserved

Value

156

Unit

Source

[1]

Normalized RMS of residuals

Value

0.531314

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2017-11-18.38334

Unit

Source

[2]

Last Observation

Value

2023-11-16.32262

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

42 (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

[3]

Last Observation

Value

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

0 (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 2017WO1 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	1964-05-21 09:57	< 1 min	0.1873813	0.1873666	0.0000049
EARTH	1964-11-11 16:17	2.2	0.1771812	0.1771684	0.0000043
EARTH	1970-05-21 22:55	< 1 min	0.0860464	0.0860423	0.0000014
EARTH	1970-10-31 00:36	1.2	0.1462283	0.1462259	0.0000008
EARTH	1976-05-18 23:11	< 1 min	0.0870175	0.0870107	0.0000023
EARTH	1976-10-22 01:40	< 1 min	0.1659803	0.1659726	0.0000026
EARTH	1982-05-10 09:35	< 1 min	0.1822696	0.1822628	0.0000022
EARTH	2017-05-21 23:24	< 1 min	0.1838535	0.1838403	0.0000044
EARTH	2017-11-11 19:05	< 1 min	0.1755293	0.1755266	0.0000009
EARTH	2023-05-22 07:10	< 1 min	0.0844438	0.0844335	0.0000034
EARTH	2023-10-31 04:45	< 1 min	0.1452542	0.1452523	0.0000007
EARTH	2029-05-19 00:39	< 1 min	0.0899115	0.0899032	0.0000028
EARTH	2029-10-22 07:59	< 1 min	0.1664113	0.1664092	0.0000007
EARTH	2035-05-09 20:25	< 1 min	0.1862365	0.1862178	0.0000063
EARTH	2070-05-22 09:21	< 1 min	0.1801392	0.1801087	0.0000102
EARTH	2070-11-11 18:22	1.8	0.1738547	0.1738487	0.0000020
EARTH	2076-05-21 15:40	< 1 min	0.0838241	0.0838065	0.0000059
EARTH	2076-10-30 10:22	1.1	0.1442703	0.1442685	0.0000006
EARTH	2082-05-19 06:23	< 1 min	0.0921236	0.0921069	0.0000056
EARTH	2082-10-22 15:32	< 1 min	0.1661539	0.1661456	0.0000028
EARTH	2088-05-08 21:19	1.8	0.1883962	0.1883651	0.0000104
EARTH	2123-05-23 22:00	< 1 min	0.1798720	0.1798362	0.0000120
EARTH	2123-11-13 06:56	2.4	0.1737248	0.1737160	0.0000029

Download as: