Asteroids

2015KJ19 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.531

Aphelion (Q)

3.633

Eccentricity (e)

0.745

Inclination (i)

2.6

deg

Orbit period (P)

1097.4

Earth MOID

0.03604

U parameter

0.0

A₂

255.0

10^-15au/days²

Next Earth close approach

Date

2027-05-16

Nominal distance (from Earth center)

0.05826

8715922

Maximum Brightness

19.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

22.5

mag

Diameter

80 - 190*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2015-05-20

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

2.082092

1-sigma variation

6.032E-9

Unit

Eccentricity (e)

Value

0.745055

1-sigma variation

1.886E-7

Unit

Inclination (i)

Value

2.5511

1-sigma variation

1.591E-5

Unit

Long. of Ascending Node (Ω)

Value

105.8268

1-sigma variation

0.0004

Unit

Arg. of Perihelion (ω)

Value

30.2393

1-sigma variation

0.0004

Unit

Mean Anomaly (M)

Value

197.75636

1-sigma variation

2.504E-6

Unit

Perihelion distance

Value

0.530819

1-sigma variation

Unit

Aphelion distance

Value

3.633365

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.419889

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.578408

1-sigma variation

Unit

MOID

Value

0.036038

1-sigma variation

Unit

Orbit Period

Value

1097.3579

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

A₂

Value

254.96811

1-sigma variation

26.15500

Unit

10^-15au/days²

Covariance Matrix

	a	e	i	Ω	ω	M	A₂
a	3.63841E-17	7.01826E-16	-8.64622E-15	2.61855E-13	-4.14227E-13	-1.22882E-14	1.32539E-7
e	7.01826E-16	3.55654E-14	-4.42163E-13	1.28577E-11	-2.05496E-11	-3.82361E-13	4.15206E-6
i	-8.64622E-15	-4.42163E-13	2.53154E-10	-6.16045E-9	6.21568E-9	1.33726E-11	6.25296E-5
Ω	2.61855E-13	1.28577E-11	-6.16045E-9	1.53601E-7	-1.55558E-7	-3.08172E-10	-9.71636E-4
ω	-4.14227E-13	-2.05496E-11	6.21568E-9	-1.55558E-7	1.59197E-7	3.86702E-10	4.25911E-5
M	-1.22882E-14	-3.82361E-13	1.33726E-11	-3.08172E-10	3.86702E-10	6.27212E-12	-4.72970E-5
A₂	1.32539E-7	4.15206E-6	6.25296E-5	-9.71636E-4	4.25911E-5	-4.72970E-5	6.84084E2

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

22.501

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

80 - 190*

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

3299

Unit

Source

[1]

Unobserved

Value

478

Unit

Source

[1]

Normalized RMS of residuals

Value

0.535058

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2015-05-20.27497

Unit

Source

[2]

Last Observation

Value

2024-05-31.218008

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

246 (1)

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 2015KJ19 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	2006-05-22 15:27	< 1 min	0.1726089	0.1726081	0.0000003
EARTH	2009-05-19 08:02	< 1 s	0.1115174	0.1115169	0.0000002
EARTH	2012-05-16 18:18	< 1 s	0.0770433	0.0770430	0.0000001
EARTH	2015-05-16 13:37	< 1 s	0.0595814	0.0595812	0.0000001
EARTH	2018-05-15 10:19	< 1 s	0.0484853	0.0484851	0.0000001
EARTH	2021-05-14 10:03	< 1 s	0.0385611	0.0385610	0.0000001
EARTH	2024-05-14 02:42	< 1 s	0.0403924	0.0403922	0.0000001
EARTH	2027-05-16 11:44	< 1 s	0.0582623	0.0582621	0.0000001
EARTH	2030-05-18 06:40	< 1 s	0.0930864	0.0930858	0.0000002
EARTH	2033-05-19 20:12	< 1 min	0.1200759	0.1200749	0.0000004
VENUS	2036-04-29 08:54	< 1 min	0.0346754	0.0346738	0.0000005
EARTH	2036-05-21 07:37	< 1 min	0.1564952	0.1564937	0.0000005
4 Vesta	2036-09-05 10:47	< 1 min	0.0190381	0.0190365	0.0000005
EARTH	2039-05-23 21:03	< 1 min	0.1892434	0.1892424	0.0000003
EARTH	2087-05-24 05:15	< 1 min	0.1585804	0.1585740	0.0000021
EARTH	2090-05-21 11:42	< 1 min	0.1134104	0.1134039	0.0000022
EARTH	2093-05-19 04:12	< 1 min	0.0631443	0.0631384	0.0000020
EARTH	2096-05-14 07:35	< 1 min	0.0473130	0.0473087	0.0000014
88 Thisbe	2096-09-20 09:26	< 1 min	0.0185953	0.0185931	0.0000007
EARTH	2099-05-10 06:14	< 1 min	0.1188189	0.1188132	0.0000019

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
46.31990673	129.56281089	0.03604000	MINIMUM
314.75513307	299.73672026	0.03988371	MINIMUM
1.00330153	35.41550394	0.45575588	SADDLE
0.95315490	215.26111861	1.54434018	SADDLE
180.14778167	214.00289864	2.62021007	SADDLE
180.11765024	33.98742611	4.61952474	MAXIMUM

Download:

MOID Plots

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