Asteroids

2017RK15 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.502

Aphelion (Q)

1.225

Eccentricity (e)

0.419

Inclination (i)

5.7

deg

Orbit period (P)

293.0

Earth MOID

0.01518

U parameter

3.6

Next Earth close approach

Date

2029-08-31

Nominal distance (from Earth center)

0.10443

15623001

Maximum Brightness

24.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.7

mag

Diameter

19 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2017-09-14

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.863371

1-sigma variation

2.156E-7

Unit

Eccentricity (e)

Value

0.419022

1-sigma variation

0.000042

Unit

Inclination (i)

Value

5.7392

1-sigma variation

0.0007

Unit

Long. of Ascending Node (Ω)

Value

344.5405

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

216.2641

1-sigma variation

0.0002

Unit

Mean Anomaly (M)

Value

192.24078

1-sigma variation

0.00692

Unit

Perihelion distance

Value

0.501599

1-sigma variation

Unit

Aphelion distance

Value

1.225143

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.066585

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.460797

1-sigma variation

Unit

MOID

Value

0.015178

1-sigma variation

Unit

Orbit Period

Value

293.0182

1-sigma variation

Unit

U parameter

Value

3.6

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.64888E-14	9.01131E-12	1.59848E-10	-2.51314E-11	3.20302E-11	-1.49216E-9
e	9.01131E-12	1.74760E-9	3.09725E-8	-4.89757E-9	6.26207E-9	-2.89394E-7
i	1.59848E-10	3.09725E-8	5.49890E-7	-8.60852E-8	1.09410E-7	-5.12845E-6
Ω	-2.51314E-11	-4.89757E-9	-8.60852E-8	1.45386E-8	-1.91207E-8	8.11424E-7
ω	3.20302E-11	6.26207E-9	1.09410E-7	-1.91207E-8	2.56380E-8	-1.03787E-6
M	-1.49216E-9	-2.89394E-7	-5.12845E-6	8.11424E-7	-1.03787E-6	4.79226E-5

Date of computation: 2025-09-10 00:30 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

25.695

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

19 - 40*

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

1450

Unit

Source

[1]

Unobserved

Value

1480

Unit

Source

[1]

Normalized RMS of residuals

Value

0.776351

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2017-09-13.42161

Unit

Source

[2]

Last Observation

Value

2021-09-01.967776

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

30 (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 2017RK15 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
VENUS	1956-07-08 00:22	8.2	0.0322126	0.0321402	0.0000243
EARTH	1956-09-17 11:15	21.4	0.1865089	0.1864810	0.0000093
EARTH	1960-09-04 06:14	< 1 min	0.1209680	0.1208974	0.0000235
EARTH	1964-08-29 07:32	2.4	0.0368639	0.0366208	0.0000811
EARTH	1968-08-29 07:28	2.1	0.0476364	0.0472733	0.0001211
VENUS	1971-07-30 21:57	4.3	0.0479871	0.0479534	0.0000113
EARTH	1972-08-31 11:01	4.2	0.1350353	0.1346690	0.0001221
EARTH	1973-11-27 19:40	< 1 min	0.1979827	0.1979456	0.0000124
EARTH	1977-11-30 14:28	< 1 min	0.1281641	0.1281055	0.0000195
EARTH	1981-12-01 21:37	< 1 min	0.0970398	0.0969953	0.0000149
VENUS	1985-06-05 14:37	2.7	0.0350768	0.0350196	0.0000191
EARTH	1985-11-29 04:27	8.9	0.1262467	0.1260356	0.0000704
EARTH	1989-11-19 14:10	24.7	0.1728915	0.1726406	0.0000837
VENUS	1990-01-16 15:16	8.4	0.0485775	0.0482368	0.0001138
EARTH	2009-09-19 21:03	20.1	0.1931437	0.1931353	0.0000028
EARTH	2013-09-07 10:01	7.6	0.1383581	0.1383408	0.0000058
EARTH	2017-08-31 01:10	< 1 min	0.0706885	0.0706640	0.0000082
VENUS	2018-12-13 14:53	5.8	0.0372992	0.0371692	0.0000441
EARTH	2021-08-29 12:37	< 1 min	0.0173966	0.0173909	0.0000019
EARTH	2025-08-29 17:48	< 1 min	0.0403522	0.0402952	0.0000190
EARTH	2029-08-31 01:35	1.6	0.1044333	0.1043616	0.0000239
EARTH	2033-09-02 05:07	1.7	0.1756282	0.1755723	0.0000186
EARTH	2034-11-29 11:12	5.5	0.1680925	0.1677275	0.0001217
EARTH	2038-12-01 08:50	3.3	0.1205522	0.1203414	0.0000704
EARTH	2042-12-02 09:16	< 1 min	0.0987126	0.0987025	0.0000036
EARTH	2046-12-01 08:59	4.6	0.1123758	0.1122195	0.0000522
EARTH	2050-11-25 15:22	8.8	0.1508595	0.1507036	0.0000520
EARTH	2054-11-15 12:21	5.6	0.1889204	0.1888069	0.0000378
EARTH	2078-09-15 00:11	18.5	0.1725889	0.1723804	0.0000695
EARTH	2082-09-05 13:10	10.8	0.1229965	0.1227816	0.0000716
EARTH	2086-08-31 07:00	3.4	0.0635807	0.0633964	0.0000614
EARTH	2090-08-30 01:15	< 1 min	0.0161009	0.0160485	0.0000175
EARTH	2094-08-30 04:16	< 1 min	0.0284168	0.0282558	0.0000537
VENUS	2096-03-02 02:13	1.3	0.0334042	0.0333094	0.0000317
EARTH	2098-08-31 06:41	1.2	0.0907083	0.0905079	0.0000668
EARTH	2102-09-03 14:07	2.1	0.1702977	0.1700734	0.0000748
EARTH	2103-12-01 03:44	1.9	0.1697099	0.1695794	0.0000435
EARTH	2107-12-03 11:50	< 1 min	0.1119345	0.1118916	0.0000143
EARTH	2111-12-03 19:56	< 1 min	0.1040529	0.1039745	0.0000262
EARTH	2115-11-29 02:24	5.0	0.1435354	0.1434042	0.0000438
EARTH	2119-11-16 04:29	8.9	0.1934217	0.1932864	0.0000451

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
114.47261747	234.55073548	0.01546658	MINIMUM
250.59108241	327.70925439	0.09818256	MINIMUM
184.22621105	281.81491304	0.23743748	SADDLE
5.20314729	104.67306574	0.50408341	SADDLE
4.33197374	283.31692800	1.49720721	SADDLE
181.36305857	99.99338451	2.22616900	MAXIMUM

Download:

MOID Plots

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