Asteroids

2026HP5 help

Last update: 2026-05-07 13:00 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.848

Aphelion (Q)

1.683

Eccentricity (e)

0.330

Inclination (i)

2.0

deg

Orbit period (P)

520.3

Earth MOID

0.00194

U parameter

6.4

Next Earth close approach

Date

2036-03-07

Nominal distance (from Earth center)

0.13522

20228965

Maximum Brightness

34.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

7 - 15*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-04-27

Observatory

University of Arizona Catalina Sky 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

1.265951

1-sigma variation

0.000098

Unit

Eccentricity (e)

Value

0.329804

1-sigma variation

0.000071

Unit

Inclination (i)

Value

1.9983

1-sigma variation

0.0004

Unit

Long. of Ascending Node (Ω)

Value

212.6210

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

294.9167

1-sigma variation

0.0004

Unit

Mean Anomaly (M)

Value

66.83391

1-sigma variation

0.00975

Unit

Perihelion distance

Value

0.848435

1-sigma variation

Unit

Aphelion distance

Value

1.683467

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.014103

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.314845

1-sigma variation

Unit

MOID

Value

0.001943

1-sigma variation

Unit

Orbit Period

Value

520.2640

1-sigma variation

Unit

U parameter

Value

6.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.57771E-9	6.92058E-9	3.79620E-8	5.09911E-10	3.84534E-8	-9.54290E-7
e	6.92058E-9	5.00118E-9	2.74272E-8	3.36160E-10	2.76872E-8	-6.89503E-7
i	3.79620E-8	2.74272E-8	1.51913E-7	6.75984E-9	1.48669E-7	-3.78283E-6
Ω	5.09911E-10	3.36160E-10	6.75984E-9	1.77423E-8	-7.09685E-9	-5.39422E-8
ω	3.84534E-8	2.76872E-8	1.48669E-7	-7.09685E-9	1.84725E-7	-3.83725E-6
M	-9.54290E-7	-6.89503E-7	-3.78283E-6	-5.39422E-8	-3.83725E-6	9.50849E-5

Date of computation: 2026-05-07 13:00 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

27.991

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

7 - 15*

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

0.87295

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-04-27.380553

Unit

Source

[2]

Last Observation

Value

2026-05-07.422242

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

43 (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 2026HP5 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	1951-04-16 12:36	> 1 d	0.0597416	0.0029074	0.0285478
EARTH	1964-03-13 14:30	> 1 w	0.1273007	0.0759433	0.0177309
EARTH	1977-02-06 10:06	> 1 w	0.1358351	0.1079318	0.0098526
EARTH	1989-12-27 00:47	> 1 w	0.0680992	0.0332125	0.0321184
EARTH	2002-12-17 13:50	1122.4	0.0341318	0.0337826	0.0010755
MARS	2011-05-23 03:30	50.0	0.0393451	0.0328622	0.0034512
EARTH	2013-05-05 00:36	701.2	0.1075897	0.0835935	0.0079997
EARTH	2015-12-10 11:03	591.2	0.1079490	0.0882052	0.0066615
EARTH	2026-04-26 10:31	< 1 min	0.0021093	0.0021079	0.0000005
EARTH	2036-03-07 16:24	> 1 d	0.1352223	0.1302532	0.0016606
MARS	2041-06-21 22:40	2.6	0.0354483	0.0330954	0.0030070
EARTH	2046-01-06 00:44	> 1 d	0.0981696	0.0709642	0.0092065
EARTH	2055-12-09 23:50	> 1 d	0.0794947	0.0362417	0.0158031
EARTH	2063-05-07 05:57	752.0	0.1295339	0.1037109	0.0086083
EARTH	2073-04-12 10:02	> 1 d	0.0766001	0.0637142	0.0042971
EARTH	2083-01-30 18:20	> 1 w	0.1331330	0.1206177	0.0042000
EARTH	2092-12-10 00:33	> 1 d	0.0713979	0.0266815	0.0214920
MARS	2094-02-19 06:52	221.0	0.0323006	0.0322562	0.0008541
EARTH	2100-05-05 16:26	1433.6	0.0959089	0.0484530	0.0158292
EARTH	2110-03-19 04:22	> 1 d	0.1258958	0.1223872	0.0011704
EARTH	2119-12-29 20:11	> 1 d	0.0756869	0.0301055	0.0176968

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
51.45280712	110.57038691	0.00194318	MINIMUM
312.01019664	339.27983865	0.02662678	MINIMUM
1.68125711	44.72798581	0.14258551	SADDLE
181.02880851	224.27385218	0.67256723	SADDLE
2.28302877	225.54573990	1.86024285	SADDLE
181.15102652	44.35175004	2.67122596	MAXIMUM

Download:

MOID Plots

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