Asteroids

2019JG1 help

Last update: 2025-07-29 02:36 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.909

Aphelion (Q)

1.731

Eccentricity (e)

0.311

Inclination (i)

3.3

deg

Orbit period (P)

553.9

Earth MOID

0.01427

U parameter

3.4

Next Earth close approach

Date

2025-09-09

Nominal distance (from Earth center)

0.04823

7214636

Maximum Brightness

22.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.6

mag

Diameter

13 - 29*

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.319946

1-sigma variation

0.000001

Unit

Eccentricity (e)

Value

0.311486

1-sigma variation

0.000001

Unit

Inclination (i)

Value

3.3180

1-sigma variation

7.003E-6

Unit

Long. of Ascending Node (Ω)

Value

221.9444

1-sigma variation

2.378E-5

Unit

Arg. of Perihelion (ω)

Value

69.5730

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

306.80577

1-sigma variation

0.00180

Unit

Perihelion distance

Value

0.908801

1-sigma variation

Unit

Aphelion distance

Value

1.731090

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.066935

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.345902

1-sigma variation

Unit

MOID

Value

0.014267

1-sigma variation

Unit

Orbit Period

Value

553.9014

1-sigma variation

Unit

U parameter

Value

3.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.23519E-12	8.21062E-13	4.04354E-13	-7.07158E-12	3.65745E-12	-2.00462E-9
e	8.21062E-13	5.73943E-13	3.11772E-13	-4.75185E-12	1.05845E-11	-1.33549E-9
i	4.04354E-13	3.11772E-13	4.90352E-11	1.50500E-10	-1.42817E-10	-6.57537E-10
Ω	-7.07158E-12	-4.75185E-12	1.50500E-10	5.65625E-10	-5.63725E-10	1.14869E-8
ω	3.65745E-12	1.05845E-11	-1.42817E-10	-5.63725E-10	2.90575E-9	-6.80296E-9
M	-2.00462E-9	-1.33549E-9	-6.57537E-10	1.14869E-8	-6.80296E-9	3.25365E-6

Date of computation: 2025-07-29 02:36 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

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

26.568

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

13 - 29*

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

2293

Unit

Source

[1]

Normalized RMS of residuals

Value

0.546021

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

2019-05-16.35528

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

55 (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 2125

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 23:33	57.4	0.0572083	0.0557672	0.0004807
EARTH	1981-06-29 17:48	260.0	0.1135062	0.1132175	0.0000962
EARTH	1984-09-06 21:37	51.0	0.0520496	0.0518531	0.0000670
EARTH	2019-05-17 01:54	< 1 s	0.0142899	0.0142899	0.0000000
EARTH	2022-07-12 14:03	17.2	0.1191578	0.1191534	0.0000015
EARTH	2025-09-09 14:53	8.5	0.0482269	0.0482239	0.0000011
EARTH	2060-05-05 06:10	46.2	0.1377455	0.1360451	0.0005668
EARTH	2063-05-30 13:26	211.0	0.0650883	0.0638056	0.0004277
EARTH	2066-08-11 15:10	235.8	0.1037874	0.1033129	0.0001583
EARTH	2069-09-18 20:19	20.6	0.1101527	0.1096020	0.0001837
EARTH	2101-05-07 06:46	157.7	0.1304653	0.1248139	0.0018843
EARTH	2104-06-05 10:16	855.3	0.0784055	0.0746142	0.0012641
EARTH	2107-08-23 04:50	717.5	0.0898881	0.0874263	0.0008250
EARTH	2110-09-22 20:27	81.8	0.1452094	0.1423451	0.0009559

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
318.01212097	132.76592449	0.01426749	MINIMUM
41.61249464	245.52106569	0.04824552	MINIMUM
1.10329714	190.97364904	0.11933271	SADDLE
179.99457389	9.16102068	0.75057797	SADDLE
359.62364311	8.88647761	1.89195349	SADDLE
179.66818037	188.92372993	2.74625141	MAXIMUM

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MOID Plots

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