Asteroids

2026PX help

Last update: 2026-08-24 13:15 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.949

Aphelion (Q)

1.896

Eccentricity (e)

0.333

Inclination (i)

0.3

deg

Orbit period (P)

619.5

Earth MOID

0.00395

U parameter

6.7

Next Earth close approach

Date

2031-10-10

Nominal distance (from Earth center)

0.0524

7839509

Maximum Brightness

36.8

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

25.6

mag

Diameter

20 - 40*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-08-04

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.422224

1-sigma variation

0.000184

Unit

Eccentricity (e)

Value

0.333010

1-sigma variation

0.000095

Unit

Inclination (i)

Value

0.2936

1-sigma variation

0.0001

Unit

Long. of Ascending Node (Ω)

Value

98.9629

1-sigma variation

0.0007

Unit

Arg. of Perihelion (ω)

Value

273.7074

1-sigma variation

0.0010

Unit

Mean Anomaly (M)

Value

295.14223

1-sigma variation

0.01374

Unit

Perihelion distance

Value

0.948610

1-sigma variation

Unit

Aphelion distance

Value

1.895839

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.250681

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.279507

1-sigma variation

Unit

MOID

Value

0.003951

1-sigma variation

Unit

Orbit Period

Value

619.5131

1-sigma variation

Unit

U parameter

Value

6.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.37770E-8	1.73983E-8	1.42593E-8	7.30385E-8	-1.43170E-7	2.52434E-6
e	1.73983E-8	8.96179E-9	7.34470E-9	3.75969E-8	-7.37185E-8	1.30027E-6
i	1.42593E-8	7.34470E-9	6.03169E-9	3.27114E-8	-6.23688E-8	1.06569E-6
Ω	7.30385E-8	3.75969E-8	3.27114E-8	4.70926E-7	-6.29689E-7	5.46112E-6
ω	-1.43170E-7	-7.37185E-8	-6.23688E-8	-6.29689E-7	9.34899E-7	-1.07027E-5
M	2.52434E-6	1.30027E-6	1.06569E-6	5.46112E-6	-1.07027E-5	1.88659E-4

Date of computation: 2026-08-24 13:15 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

25.624

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

20 - 40*

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

[-]

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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

0.579097

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-07-20.392609

Unit

Source

[2]

Last Observation

Value

2026-08-22.91984

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

51 (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

Filters

Initial Date: *

Final Date: *

Normalised Only accepted

Max residual (arcsec):

* - these fields are required

Plot

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 2026PX 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	1952-11-04 21:20	> 1 mo	0.0132773	0.0039152	10.3891695
EARTH	1957-11-13 05:20	> 1 mo	0.0229084	0.0039541	2.6331598
EARTH	1999-08-13 20:14	> 1 mo	0.0573648	0.0017802	0.5798317
EARTH	2004-09-15 14:04	> 1 mo	0.0479509	0.0033671	0.1463942
EARTH	2009-11-10 13:56	> 1 d	0.0076903	0.0039293	0.0148562
EARTH	2026-08-23 20:57	< 1 s	0.0062892	0.0062842	0.0000017
EARTH	2031-10-10 19:01	> 1 d	0.0524039	0.0494761	0.0009760
EARTH	2036-11-16 16:43	> 1 d	0.0323536	0.0062488	0.0087366
EARTH	2068-08-04 04:46	> 1 w	0.1897604	0.0040686	0.1387087
EARTH	2073-09-06 00:29	> 1 mo	0.0315603	0.0042383	0.0837333
EARTH	2078-11-25 12:05	> 1 w	0.1100020	0.0015849	0.1110797
MARS	2091-02-01 23:38	> 1 w	0.0460375	0.0457939	0.0456339
MARS	2093-07-29 08:11	> 1 mo	0.0421028	0.0213417	0.5246679
EARTH	2105-09-06 14:45	> 1 mo	0.0303702	0.0043008	0.7305892
EARTH	2110-12-02 12:15	> 1 mo	0.1968696	0.0017837	0.9963830

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
24.46489146	303.14864006	0.00395143	MINIMUM
330.14321312	227.66357686	0.00409894	MINIMUM
357.15341235	265.24565537	0.05260611	SADDLE
178.57659163	86.75560777	0.89655133	SADDLE
357.16283979	85.25622790	1.94769972	SADDLE
178.57419416	266.75296314	2.89659319	MAXIMUM

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MOID Plots

Click on the images to zoom-in and zoom-out

Level lines of the squared distance function

2026PX

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS
2089-11-09.677	84364.677	-3.108	0.61 ± 0.000	5.12E6	2.36E-9	5.12E-1	-9.14
2107-11-11.371	90939.371	-1.028	1.29 ± 0.001	2.01E5	3.70E-6	5.12E-1	-6.05
2110-11-12.719	92036.719	-1.350	1.21 ± 0.001	1.96E6	2.58E-7	5.13E-1	-7.23
2114-11-14.031	93499.031	-3.037	1.24 ± 0.000	5.50E5	2.27E-8	5.12E-1	-8.30
2122-11-11.169	96418.169	0.264	0.79 ± 0.005	3.59E6	3.90E-7	5.15E-1	-7.10
2123-11-11.507	96783.507	-2.878	0.90 ± 0.019	4.06E6	5.95E-9	5.11E-1	-8.93
2124-11-11.236	97149.236	-1.836	1.63 ± 0.032	5.98E6	3.96E-8	5.14E-1	-8.11


Based on 51 optical observations (of which 0 are rejected as outliers) from 2026/07/20.393 to 2026/08/22.920.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.99 and 1.99 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 5.0, Date of computation=20260824 134008.611 UTC.

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