Asteroids

2026AX help

Last update: 2026-03-18 10:55 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Aten

Perihelion (q)

0.796

Aphelion (Q)

1.006

Eccentricity (e)

0.117

Inclination (i)

4.6

deg

Orbit period (P)

312.4

Earth MOID

0.01117

U parameter

5.9

Next Earth close approach

Date

2031-09-03

Nominal distance (from Earth center)

0.16864

25228056

Maximum Brightness

30.6

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

26.9

mag

Diameter

11 - 25*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-01-10

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

0.901090

1-sigma variation

0.000018

Unit

Eccentricity (e)

Value

0.116841

1-sigma variation

0.000028

Unit

Inclination (i)

Value

4.5831

1-sigma variation

0.0012

Unit

Long. of Ascending Node (Ω)

Value

290.3925

1-sigma variation

0.0005

Unit

Arg. of Perihelion (ω)

Value

338.5412

1-sigma variation

0.0003

Unit

Mean Anomaly (M)

Value

19.13628

1-sigma variation

0.00572

Unit

Perihelion distance

Value

0.795806

1-sigma variation

Unit

Aphelion distance

Value

1.006374

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.215119

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.013617

1-sigma variation

Unit

MOID

Value

0.011166

1-sigma variation

Unit

Orbit Period

Value

312.4285

1-sigma variation

Unit

U parameter

Value

5.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.22408E-10	-5.01943E-10	-2.21419E-8	-9.35728E-9	-5.13998E-9	-1.02726E-7
e	-5.01943E-10	7.81467E-10	3.44714E-8	1.45679E-8	7.99164E-9	1.59943E-7
i	-2.21419E-8	3.44714E-8	1.52117E-6	6.42825E-7	3.53671E-7	7.05381E-6
Ω	-9.35728E-9	1.45679E-8	6.42825E-7	2.71672E-7	1.49329E-7	2.98113E-6
ω	-5.13998E-9	7.99164E-9	3.53671E-7	1.49329E-7	9.01227E-8	1.62686E-6
M	-1.02726E-7	1.59943E-7	7.05381E-6	2.98113E-6	1.62686E-6	3.27451E-5

Date of computation: 2026-03-18 10:55 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

26.873

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

11 - 25*

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

0.596249

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-01-10.390955

Unit

Source

[2]

Last Observation

Value

2026-01-19.486825

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

53 (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 2026AX 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	1950-08-08 21:27	> 1 w	0.1848604	0.1731526	0.0048656
EARTH	1951-01-28 05:36	172.2	0.1508483	0.0824919	0.0229961
EARTH	1956-12-09 18:39	> 1 w	0.0605426	0.0476475	0.0163396
EARTH	1969-08-16 14:29	> 1 mo	0.1764556	0.1615506	0.0103284
EARTH	1970-01-27 18:35	269.5	0.1190287	0.0205315	0.0431246
EARTH	1975-11-24 00:44	> 1 d	0.0870857	0.0644042	0.0232288
EARTH	1976-04-06 15:56	> 1 mo	0.1655588	0.1171975	0.0166730
EARTH	1988-09-19 23:48	> 1 w	0.1423252	0.1332447	0.0034656
EARTH	1989-01-20 10:33	> 1 d	0.0170180	0.0115641	0.0046719
EARTH	1994-12-11 11:34	> 1 d	0.0560788	0.0478580	0.0033211
EARTH	2000-11-17 02:00	25.6	0.1811947	0.1643657	0.0056640
EARTH	2013-07-29 06:00	> 1 d	0.1968135	0.1962367	0.0001976
EARTH	2019-09-14 11:49	> 1 d	0.1518147	0.1504948	0.0004446
EARTH	2020-01-24 03:34	206.7	0.0331306	0.0302584	0.0009682
EARTH	2026-01-16 17:43	< 1 min	0.0112713	0.0112638	0.0000025
EARTH	2031-09-03 12:19	> 1 d	0.1686391	0.1674351	0.0004044
EARTH	2032-01-26 22:40	65.1	0.0660206	0.0627978	0.0010766
EARTH	2038-01-26 19:43	28.1	0.1997544	0.1956259	0.0013764
EARTH	2054-11-18 03:03	2.5	0.1467281	0.1442362	0.0008327
EARTH	2055-04-29 14:05	1368.5	0.1968743	0.1961788	0.0002325
EARTH	2060-12-05 22:30	195.7	0.0561295	0.0556641	0.0001571
EARTH	2067-01-04 00:55	106.0	0.0255318	0.0252172	0.0001053
EARTH	2072-12-23 20:12	290.0	0.0380958	0.0373998	0.0002340
EARTH	2078-11-19 23:52	52.8	0.0888095	0.0878065	0.0003358
EARTH	2079-04-09 08:17	954.0	0.1715198	0.1709016	0.0002062
EARTH	2097-07-31 15:11	336.8	0.1955801	0.1953811	0.0000665
EARTH	2098-01-26 20:12	1.9	0.1807769	0.1798320	0.0003150
EARTH	2103-09-20 14:12	992.4	0.1462931	0.1455373	0.0002528
EARTH	2104-01-20 12:55	155.2	0.0195117	0.0186368	0.0003011
EARTH	2109-09-24 21:06	973.2	0.1458308	0.1450506	0.0002604
EARTH	2110-01-19 05:35	173.5	0.0178945	0.0171583	0.0002575
EARTH	2116-01-28 08:37	1.7	0.1687560	0.1636303	0.0017091

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
209.60023936	10.77839116	0.01116603	MINIMUM
357.90421923	161.86253699	0.22205713	SADDLE
1.82139047	346.35778971	1.77966360	SADDLE
182.34590213	166.89304019	2.02250585	MAXIMUM

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MOID Plots

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