Asteroids

2019JG1 help

Last update: 2025-11-24 19:20 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.909

Aphelion (Q)

1.732

Eccentricity (e)

0.312

Inclination (i)

3.3

deg

Orbit period (P)

554.1

Earth MOID

0.01432

U parameter

0.0

Next Earth close approach

Date

2060-05-05

Nominal distance (from Earth center)

0.13637

20400171

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.5

mag

Diameter

13 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2019-05-01

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

1.320318

1-sigma variation

5.788E-9

Unit

Eccentricity (e)

Value

0.311556

1-sigma variation

4.847E-8

Unit

Inclination (i)

Value

3.3307

1-sigma variation

4.428E-6

Unit

Long. of Ascending Node (Ω)

Value

221.6052

1-sigma variation

1.618E-5

Unit

Arg. of Perihelion (ω)

Value

69.9177

1-sigma variation

2.871E-5

Unit

Mean Anomaly (M)

Value

76.75990

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.908965

1-sigma variation

Unit

Aphelion distance

Value

1.731670

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.067370

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.343400

1-sigma variation

Unit

MOID

Value

0.014319

1-sigma variation

Unit

Orbit Period

Value

554.1356

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.34983E-17	2.78087E-16	-2.46505E-14	-8.61534E-14	1.62128E-13	-7.97827E-14
e	2.78087E-16	2.34899E-15	-2.05458E-13	-7.25089E-13	1.36370E-12	-6.68331E-13
i	-2.46505E-14	-2.05458E-13	1.96063E-11	6.49605E-11	-1.21970E-10	5.93585E-11
Ω	-8.61534E-14	-7.25089E-13	6.49605E-11	2.61894E-10	-4.54515E-10	2.03451E-10
ω	1.62128E-13	1.36370E-12	-1.21970E-10	-4.54515E-10	8.24226E-10	-3.87571E-10
M	-7.97827E-14	-6.68331E-13	5.93585E-11	2.03451E-10	-3.87571E-10	1.92167E-10

Date of computation: 2025-11-24 19:20 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

26.5

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

13 - 30*

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

2346

Unit

Source

[1]

Unobserved

Value

105

Unit

Source

[1]

Normalized RMS of residuals

Value

0.629946

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2019-05-01.4375

Unit

Source

[2]

Last Observation

Value

2025-10-02.292302

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

66 (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

2019-05-15

Unit

Source

[3]

Last Observation

Value

2019-05-15

Unit

Source

[3]

Delay (Discarded)

Value

1 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

2 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

3 (0)

Unit

Source

[1]

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
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 2019JG1 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1978-05-10 21:11	< 1 min	0.0583736	0.0583662	0.0000025
EARTH	1981-06-29 10:15	1.3	0.1132702	0.1132688	0.0000005
EARTH	1984-09-06 19:27	< 1 min	0.0522156	0.0522146	0.0000003
EARTH	2019-05-17 01:54	< 1 s	0.0142899	0.0142899	0.0000000
EARTH	2022-07-12 14:31	< 1 min	0.1191613	0.1191612	0.0000000
EARTH	2025-09-09 15:15	< 1 min	0.0482244	0.0482241	0.0000001
EARTH	2060-05-05 08:15	< 1 min	0.1363667	0.1363623	0.0000015
EARTH	2063-05-30 22:19	< 1 min	0.0661242	0.0661209	0.0000011
EARTH	2066-08-11 23:28	< 1 min	0.1033985	0.1033974	0.0000004
EARTH	2069-09-18 21:14	< 1 min	0.1106058	0.1106050	0.0000003
EARTH	2101-05-06 23:49	< 1 min	0.1350168	0.1350034	0.0000045
EARTH	2104-06-04 00:50	2.0	0.0752889	0.0752796	0.0000031
EARTH	2107-08-21 23:24	1.8	0.0918515	0.0918457	0.0000020
EARTH	2110-09-22 16:44	< 1 min	0.1429252	0.1429180	0.0000024

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
317.71222628	133.29278893	0.01431910	MINIMUM
41.78212967	246.72866554	0.04818299	MINIMUM
0.99373267	191.78483024	0.12096009	SADDLE
179.95207790	10.05149861	0.75124062	SADDLE
359.54735254	9.74094576	1.89206586	SADDLE
179.62545896	189.81356583	2.74861869	MAXIMUM

Download:

MOID Plots

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