Asteroids

2019MA2 help

Last update: 2025-03-29 00:36 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.403

Aphelion (Q)

4.094

Eccentricity (e)

0.821

Inclination (i)

41.0

deg

Orbit period (P)

1231.5

Earth MOID

0.06235

U parameter

7.8

Next Earth close approach

Date

2046-07-05

Nominal distance (from Earth center)

0.12858

19235742

Maximum Brightness

17.5

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

18.8

mag

Diameter

500 - 1000*

Taxonomic type

Rotation period (T)

0.04362

Discovery Information

Discovery Date

2019-06-27

Observatory

ATLAS-HKO, 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

2.248520

1-sigma variation

0.002588

Unit

Eccentricity (e)

Value

0.820596

1-sigma variation

0.000219

Unit

Inclination (i)

Value

41.0395

1-sigma variation

0.0160

Unit

Long. of Ascending Node (Ω)

Value

284.7363

1-sigma variation

0.0007

Unit

Arg. of Perihelion (ω)

Value

115.9325

1-sigma variation

0.0082

Unit

Mean Anomaly (M)

Value

246.13864

1-sigma variation

1.04313

Unit

Perihelion distance

Value

0.403394

1-sigma variation

Unit

Aphelion distance

Value

4.093645

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.129028

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.443150

1-sigma variation

Unit

MOID

Value

0.062350

1-sigma variation

Unit

Orbit Period

Value

1231.5256

1-sigma variation

Unit

U parameter

Value

7.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	6.69539E-6	5.66858E-7	4.13583E-5	-1.93238E-6	-2.11679E-5	-2.69915E-3
e	5.66858E-7	4.79924E-8	3.50156E-6	-1.63603E-7	-1.79215E-6	-2.28520E-4
i	4.13583E-5	3.50156E-6	2.55480E-4	-1.19367E-5	-1.30756E-4	-1.66730E-2
Ω	-1.93238E-6	-1.63603E-7	-1.19367E-5	5.57732E-7	6.10925E-6	7.79009E-4
ω	-2.11679E-5	-1.79215E-6	-1.30756E-4	6.10925E-6	6.69261E-5	8.53355E-3
M	-2.69915E-3	-2.28520E-4	-1.66730E-2	7.79009E-4	8.53355E-3	1.08812E0

Date of computation: 2025-03-29 00:36 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

0.04362

Unit

Source

[1]

Quality

Value

Unit

Source

[-]

Amplitude

Value

0.27

Unit

mag

Source

[1]

Rotation Direction

Value

Unit

Source

[-]

Spinvector L

Value

259

Unit

Source

[1]

Spinvector B

Value

Unit

Source

[1]

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

18.836

Unit

mag

Source

[2]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[2]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[3]

Diameter

Value

500 - 1000*

Unit

Source

[3]

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]	EARN	1.) Near-Earth Asteroid Lightcurve Analysis at the Center for Solar System Studies: 2019 July-September, B.D. Warner
[2]	ESA Aegis	ESA orbit determination and impact monitoring system
[3]	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

2124

Unit

Source

[1]

Normalized RMS of residuals

Value

0.531672

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2019-06-27.466519

Unit

Source

[2]

Last Observation

Value

2019-07-20.12117

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

306 (4)

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 2019MA2 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	1955-07-02 22:24	> 1 w	0.1965095	0.0407695	0.5799292
EARTH	2019-07-14 13:12	< 1 s	0.1033998	0.1033019	0.0000326
EARTH	2046-07-05 21:52	> 1 w	0.1285830	0.0656231	0.2220011
EARTH	2110-07-15 00:03	> 1 w	0.1189006	0.0830917	0.4644477

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
310.63216993	186.06861913	0.06235003	MINIMUM
34.66249985	21.87216024	0.35154180	MINIMUM
352.62117163	279.01683902	0.73486969	SADDLE
354.72532215	107.53169848	1.34422712	SADDLE
177.36299816	124.11236136	3.33478855	SADDLE
181.58536979	305.66007544	4.92851479	MAXIMUM

Download:

MOID Plots

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