Asteroids

2019JA5 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.632

Aphelion (Q)

2.684

Eccentricity (e)

0.619

Inclination (i)

9.6

deg

Orbit period (P)

780.0

Earth MOID

0.16249

U parameter

8.0

Next Earth close approach

Date

2034-05-25

Nominal distance (from Earth center)

0.16926

25320352

Maximum Brightness

20.7

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

21.4

mag

Diameter

140 - 300*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2019-05-08

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

1.658292

1-sigma variation

0.001681

Unit

Eccentricity (e)

Value

0.618744

1-sigma variation

0.000683

Unit

Inclination (i)

Value

9.6108

1-sigma variation

0.0138

Unit

Long. of Ascending Node (Ω)

Value

157.0915

1-sigma variation

0.0415

Unit

Arg. of Perihelion (ω)

Value

175.0870

1-sigma variation

0.0230

Unit

Mean Anomaly (M)

Value

342.99318

1-sigma variation

1.62256

Unit

Perihelion distance

Value

0.632233

1-sigma variation

Unit

Aphelion distance

Value

2.684350

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.677555

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.377262

1-sigma variation

Unit

MOID

Value

0.162492

1-sigma variation

Unit

Orbit Period

Value

779.9913

1-sigma variation

Unit

U parameter

Value

8.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.82654E-6	1.14722E-6	2.31268E-5	6.87782E-5	-3.84645E-5	-2.72789E-3
e	1.14722E-6	4.66471E-7	9.42252E-6	2.81158E-5	-1.56802E-5	-1.10719E-3
i	2.31268E-5	9.42252E-6	1.90757E-4	5.71307E-4	-3.17662E-4	-2.23203E-2
Ω	6.87782E-5	2.81158E-5	5.71307E-4	1.72150E-3	-9.52536E-4	-6.63811E-2
ω	-3.84645E-5	-1.56802E-5	-3.17662E-4	-9.52536E-4	5.29310E-4	3.71232E-2
M	-2.72789E-3	-1.10719E-3	-2.23203E-2	-6.63811E-2	3.71232E-2	2.63269E0

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

21.385

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

140 - 300*

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

2302

Unit

Source

[1]

Normalized RMS of residuals

Value

0.381822

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2019-05-08.28192

Unit

Source

[2]

Last Observation

Value

2019-05-30.33885

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

34 (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 2019JA5 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	1955-05-25 09:01	> 1 w	0.1682981	0.1681910	0.0036561
EARTH	1974-11-12 03:57	> 1 w	0.1828499	0.1632583	0.1300589
EARTH	2006-11-23 02:09	> 1 d	0.1731474	0.1628061	0.0403720
EARTH	2034-05-25 04:46	> 1 w	0.1692561	0.1689861	0.0070177
EARTH	2053-11-18 12:28	> 1 w	0.1634834	0.1629097	0.0211802
EARTH	2113-05-27 21:37	> 1 w	0.1699011	0.1697125	0.0096216

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
47.67078128	315.12046047	0.16249988	MINIMUM
309.80467359	141.34688878	0.16883176	MINIMUM
357.75229134	226.53363103	0.37892928	SADDLE
358.46623147	47.98574142	1.62129882	SADDLE
179.56658086	49.54481804	1.69496599	SADDLE
179.71242582	229.60874918	3.69451221	MAXIMUM

Download:

MOID Plots

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