Asteroids

2026JA2 help

Last update: 2026-05-14 13:30 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.959

Aphelion (Q)

1.692

Eccentricity (e)

0.276

Inclination (i)

5.7

deg

Orbit period (P)

557.4

Earth MOID

0.00575

U parameter

7.5

Next Earth close approach

Date

2052-02-10

Nominal distance (from Earth center)

0.15336

22941908

Maximum Brightness

26.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

28.2

mag

Diameter

6 - 14*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-05-11

Observatory

JPL SynTrack Robotic Telescope, Auberry

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

1.325447

1-sigma variation

0.000555

Unit

Eccentricity (e)

Value

0.276412

1-sigma variation

0.000332

Unit

Inclination (i)

Value

5.7343

1-sigma variation

0.0057

Unit

Long. of Ascending Node (Ω)

Value

51.0411

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

136.4006

1-sigma variation

0.0036

Unit

Mean Anomaly (M)

Value

42.65176

1-sigma variation

0.03271

Unit

Perihelion distance

Value

0.959078

1-sigma variation

Unit

Aphelion distance

Value

1.691816

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.540731

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.009963

1-sigma variation

Unit

MOID

Value

0.005748

1-sigma variation

Unit

Orbit Period

Value

557.3679

1-sigma variation

Unit

U parameter

Value

7.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.08422E-7	1.84312E-7	3.17411E-6	-1.02152E-7	1.98229E-6	-1.81627E-5
e	1.84312E-7	1.10146E-7	1.89686E-6	-6.10481E-8	1.18423E-6	-1.08538E-5
i	3.17411E-6	1.89686E-6	3.26672E-5	-1.05138E-6	2.03936E-5	-1.86917E-4
Ω	-1.02152E-7	-6.10481E-8	-1.05138E-6	3.38543E-8	-6.55609E-7	6.01519E-6
ω	1.98229E-6	1.18423E-6	2.03936E-5	-6.55609E-7	1.29108E-5	-1.16819E-4
M	-1.81627E-5	-1.08538E-5	-1.86917E-4	6.01519E-6	-1.16819E-4	1.06963E-3

Date of computation: 2026-05-14 13:30 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

28.208

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

6 - 14*

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

0.669932

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-05-11.184549

Unit

Source

[2]

Last Observation

Value

2026-05-14.226651

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

25 (3)

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 2026JA2 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
MARS	1960-10-05 22:14	> 1 d	0.0371222	0.0038329	0.1438862
EARTH	1964-02-23 14:48	> 1 w	0.0973331	0.0943878	0.0101236
EARTH	1967-04-26 21:49	> 1 w	0.0434351	0.0009899	0.0546118
EARTH	1970-05-18 22:49	> 1 w	0.0689273	0.0025170	0.1399320
EARTH	2020-02-12 14:44	> 1 d	0.1245495	0.0972532	0.0146612
EARTH	2023-03-29 12:05	> 1 d	0.0812506	0.0707676	0.0040213
EARTH	2026-05-10 17:01	< 1 min	0.0084818	0.0084543	0.0000092
EARTH	2052-02-10 14:51	> 1 w	0.1533572	0.0989089	0.0756752
MARS	2054-10-24 02:43	> 1 d	0.0402623	0.0102155	0.0747961
EARTH	2055-05-12 04:08	> 1 w	0.0136229	0.0051013	0.0845918
EARTH	2075-04-18 18:37	> 1 mo	0.0572494	0.0165305	2.5911716
EARTH	2095-02-10 22:17	> 1 mo	0.1622212	0.0972992	1.0421586
EARTH	2098-05-24 07:08	> 1 mo	0.1149495	0.0036649	2.0539515
EARTH	2118-04-20 09:54	> 1 mo	0.0559020	0.0157739	2.7073370

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
31.38760386	123.18576300	0.00574823	MINIMUM
180.49791620	264.11845261	0.69569916	SADDLE
2.95502519	266.10550363	1.95959472	SADDLE
182.32101944	85.49033542	2.68876708	MAXIMUM

Download:

MOID Plots

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