Asteroids

2008TM26 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.918

Aphelion (Q)

2.435

Eccentricity (e)

0.452

Inclination (i)

3.7

deg

Orbit period (P)

792.9

Earth MOID

0.02838

U parameter

0.1

Next Earth close approach

Date

2058-06-15

Nominal distance (from Earth center)

0.12195

18243408

Maximum Brightness

21.5

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

23.4

mag

Diameter

60 - 130*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2008-10-09

Observatory

Lincoln Laboratory ETS, New Mexico

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.676503

1-sigma variation

4.033E-9

Unit

Eccentricity (e)

Value

0.452455

1-sigma variation

0.000001

Unit

Inclination (i)

Value

3.6873

1-sigma variation

2.052E-5

Unit

Long. of Ascending Node (Ω)

Value

336.5216

1-sigma variation

0.0003

Unit

Arg. of Perihelion (ω)

Value

343.6612

1-sigma variation

0.0004

Unit

Mean Anomaly (M)

Value

341.51543

1-sigma variation

0.00004

Unit

Perihelion distance

Value

0.917961

1-sigma variation

Unit

Aphelion distance

Value

2.435045

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.080848

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.365509

1-sigma variation

Unit

MOID

Value

0.028383

1-sigma variation

Unit

Orbit Period

Value

792.8753

1-sigma variation

Unit

U parameter

Value

0.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.62688E-17	-1.94302E-15	-3.14716E-14	-2.96759E-13	8.76600E-13	-1.52403E-13
e	-1.94302E-15	2.61275E-13	5.72610E-12	6.54634E-11	-1.44081E-10	2.06052E-11
i	-3.14716E-14	5.72610E-12	4.21048E-10	6.38667E-9	-8.09263E-9	4.43637E-10
Ω	-2.96759E-13	6.54634E-11	6.38667E-9	1.14566E-7	-1.30434E-7	3.60624E-9
ω	8.76600E-13	-1.44081E-10	-8.09263E-9	-1.30434E-7	1.71165E-7	-1.02920E-8
M	-1.52403E-13	2.06052E-11	4.43637E-10	3.60624E-9	-1.02920E-8	1.82462E-9

Date of computation: 2025-09-10 00:30 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

23.377

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

60 - 130*

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

4766

Unit

Source

[1]

Unobserved

Value

1469

Unit

Source

[1]

Normalized RMS of residuals

Value

0.618336

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2008-10-09.2814

Unit

Source

[2]

Last Observation

Value

2021-10-26.857634

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

50 (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

Close Approaches for 2008TM26 from 1950 to 2125

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1954-06-11 09:43	2.1	0.1491231	0.1490762	0.0000156
EARTH	1982-10-11 17:16	< 1 min	0.1749191	0.1748865	0.0000109
EARTH	1995-09-27 11:21	< 1 min	0.0318317	0.0318290	0.0000009
EARTH	2008-09-25 12:34	< 1 min	0.0287826	0.0287821	0.0000002
EARTH	2021-10-05 14:55	< 1 min	0.0938407	0.0938403	0.0000001
EARTH	2058-06-15 05:18	< 1 min	0.1219496	0.1219460	0.0000012
EARTH	2071-06-26 23:58	< 1 min	0.0580816	0.0580801	0.0000005
EARTH	2084-07-04 22:58	< 1 min	0.0640590	0.0640552	0.0000013
EARTH	2097-07-24 12:48	1.4	0.0907565	0.0907513	0.0000017
EARTH	2110-08-20 05:04	1.9	0.0952260	0.0952244	0.0000005
EARTH	2123-09-06 18:39	1.6	0.0749329	0.0749290	0.0000013

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
26.18639677	260.33521831	0.02818938	MINIMUM
331.92401389	173.59018062	0.05753743	MINIMUM
357.17781455	213.97733310	0.09728974	SADDLE
179.45862708	37.42498769	1.44810311	SADDLE
358.74817366	36.55149048	1.90473056	SADDLE
179.57151687	217.48778348	3.44755014	MAXIMUM

Download:

MOID Plots

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