Asteroids

2019MK1 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.691

Aphelion (Q)

1.927

Eccentricity (e)

0.472

Inclination (i)

11.1

deg

Orbit period (P)

547.2

Earth MOID

0.06193

U parameter

9.0

Next Earth close approach

Date

2028-06-03

Nominal distance (from Earth center)

0.07502

11222372

Maximum Brightness

22.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

23.8

mag

Diameter

50 - 110*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2019-06-25

Observatory

Mt. Lemmon 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

1.309200

1-sigma variation

0.020105

Unit

Eccentricity (e)

Value

0.472067

1-sigma variation

0.008299

Unit

Inclination (i)

Value

11.0735

1-sigma variation

0.0712

Unit

Long. of Ascending Node (Ω)

Value

239.6841

1-sigma variation

0.1738

Unit

Arg. of Perihelion (ω)

Value

290.2760

1-sigma variation

0.8036

Unit

Mean Anomaly (M)

Value

146.27808

1-sigma variation

26.91840

Unit

Perihelion distance

Value

0.691170

1-sigma variation

Unit

Aphelion distance

Value

1.927231

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.139169

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.228496

1-sigma variation

Unit

MOID

Value

0.061935

1-sigma variation

Unit

Orbit Period

Value

547.1513

1-sigma variation

Unit

U parameter

Value

9.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.04202E-4	1.66845E-4	1.43216E-3	-3.49349E-3	1.61549E-2	-5.41189E-1
e	1.66845E-4	6.88703E-5	5.91175E-4	-1.44200E-3	6.66833E-3	-2.23391E-1
i	1.43216E-3	5.91175E-4	5.07546E-3	-1.23745E-2	5.72349E-2	-1.91753E0
Ω	-3.49349E-3	-1.44200E-3	-1.23745E-2	3.02058E-2	-1.39642E-1	4.67746E0
ω	1.61549E-2	6.66833E-3	5.72349E-2	-1.39642E-1	6.45692E-1	-2.16299E1
M	-5.41189E-1	-2.23391E-1	-1.91753E0	4.67746E0	-2.16299E1	7.24601E2

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

23.757

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

50 - 110*

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

Unit

Source

[1]

Unobserved

Value

2335

Unit

Source

[1]

Normalized RMS of residuals

Value

0.754995

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2019-06-20.208957

Unit

Source

[2]

Last Observation

Value

2019-06-28.30747

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

16 (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 2019MK1 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	2010-06-16 21:24	> 1 mo	0.1664881	0.0650230	0.6978976
EARTH	2013-06-13 22:08	> 1 w	0.1237551	0.0632013	0.4527690
EARTH	2016-06-11 06:10	> 1 w	0.0903572	0.0621743	0.1955238
EARTH	2019-06-09 21:36	2.3	0.0696567	0.0665996	0.0010190
EARTH	2022-06-07 17:50	> 1 w	0.0614504	0.0612581	0.0208266
EARTH	2025-06-05 18:15	> 1 mo	0.0639498	0.0612819	0.1698974
EARTH	2028-06-03 15:29	> 1 mo	0.0750169	0.0620384	0.5733648
EARTH	2031-06-01 19:00	> 1 mo	0.0949273	0.0633879	1.1327074
EARTH	2034-05-28 21:32	> 1 mo	0.1244021	0.0673871	1.6747560
EARTH	2037-05-23 16:31	> 1 mo	0.1570054	0.0750610	2.0848240
EARTH	2040-05-16 23:11	> 1 mo	0.1900678	0.0900182	2.3660598
EARTH	2090-12-19 23:25	> 1 mo	0.1645258	0.0716638	3.6208552
EARTH	2093-12-17 15:06	> 1 mo	0.1283599	0.0736605	3.0673552
EARTH	2096-12-15 16:44	> 1 mo	0.1007142	0.0746619	2.5420565
EARTH	2099-12-14 22:47	> 1 mo	0.0824685	0.0750882	1.6087843
EARTH	2102-12-14 05:43	> 1 mo	0.0752871	0.0752472	0.0184399
EARTH	2105-12-12 14:19	> 1 mo	0.0816498	0.0753306	2.1113605
EARTH	2108-12-10 13:37	> 1 mo	0.1041522	0.0750296	4.7476647
EARTH	2111-12-09 05:32	> 1 mo	0.1413454	0.0744674	6.8083018
EARTH	2114-12-06 13:53	> 1 mo	0.1902406	0.0735376	8.1882954

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
58.87655269	153.62035179	0.06107885	MINIMUM
299.07778143	338.75901869	0.07371615	MINIMUM
358.46391653	64.26118079	0.33769379	SADDLE
179.43470751	248.21313798	0.95529235	SADDLE
1.55976314	249.44041522	1.69049830	SADDLE
181.31198526	69.35164258	2.91052662	MAXIMUM

Download:

MOID Plots

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