Asteroids

2026JG1 help

Last update: 2026-05-18 13:46 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.746

Aphelion (Q)

2.692

Eccentricity (e)

0.566

Inclination (i)

2.3

deg

Orbit period (P)

823.1

Earth MOID

0.01061

U parameter

8.3

Next Earth close approach

Date

2026-05-21

Nominal distance (from Earth center)

0.03436

5140614

Maximum Brightness

21.2

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

26 - 60*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-05-08

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.718807

1-sigma variation

0.003007

Unit

Eccentricity (e)

Value

0.566229

1-sigma variation

0.000939

Unit

Inclination (i)

Value

2.2565

1-sigma variation

0.0038

Unit

Long. of Ascending Node (Ω)

Value

219.7833

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

91.9550

1-sigma variation

0.0018

Unit

Mean Anomaly (M)

Value

347.30825

1-sigma variation

0.04495

Unit

Perihelion distance

Value

0.745569

1-sigma variation

Unit

Aphelion distance

Value

2.692044

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.182523

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.153837

1-sigma variation

Unit

MOID

Value

0.010609

1-sigma variation

Unit

Orbit Period

Value

823.0741

1-sigma variation

Unit

U parameter

Value

8.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.04128E-6	2.82444E-6	1.15370E-5	4.36382E-7	5.22676E-6	1.35170E-4
e	2.82444E-6	8.82340E-7	3.60414E-6	1.36429E-7	1.63307E-6	4.22263E-5
i	1.15370E-5	3.60414E-6	1.47242E-5	5.64032E-7	6.67449E-6	1.72480E-4
Ω	4.36382E-7	1.36429E-7	5.64032E-7	4.55160E-8	2.52528E-7	6.52038E-6
ω	5.22676E-6	1.63307E-6	6.67449E-6	2.52528E-7	3.08110E-6	7.81334E-5
M	1.35170E-4	4.22263E-5	1.72480E-4	6.52038E-6	7.81334E-5	2.02084E-3

Date of computation: 2026-05-18 13:46 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

25.037

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

26 - 60*

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

Unit

Source

[1]

Normalized RMS of residuals

Value

0.568345

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-05-08.229431

Unit

Source

[2]

Last Observation

Value

2026-05-17.89658

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

58 (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

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2026JG1 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	1954-09-30 08:56	> 1 mo	0.1471493	0.0092416	1.6231413
MARS	1979-08-15 14:01	> 1 mo	0.0383359	0.0373375	0.1532590
EARTH	1999-06-18 05:26	> 1 mo	0.1972294	0.0029993	0.1742934
EARTH	2008-05-29 02:49	> 1 w	0.1107093	0.0104742	0.0675583
EARTH	2017-05-20 10:49	> 1 w	0.0261649	0.0121053	0.1265755
EARTH	2026-05-21 07:11	< 1 min	0.0343629	0.0342029	0.0000533
EARTH	2035-06-01 18:07	> 1 w	0.1274868	0.0105547	0.1283845
EARTH	2071-09-30 02:23	> 1 mo	0.1528854	0.0062999	0.2733881
EARTH	2080-10-18 22:38	> 1 w	0.0184949	0.0097247	0.2225189
EARTH	2096-05-22 22:03	> 1 mo	0.0455417	0.0134990	1.8681946
EARTH	2114-10-06 17:52	> 1 mo	0.1239083	0.0065616	0.4218582

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
42.20146754	280.78532536	0.01060928	MINIMUM
316.54902439	132.35651107	0.01207317	MINIMUM
359.15426340	206.29997595	0.27162434	SADDLE
179.76653229	27.04957294	1.70792569	SADDLE
359.18378048	26.33991872	1.73051436	SADDLE
179.76264563	207.04277021	3.70644941	MAXIMUM

Download:

MOID Plots

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