Asteroids

2026TP help

Last update: 2026-10-07 14:31 UTC

Orbital Properties

Epoch

61400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.866

Aphelion (Q)

2.476

Eccentricity (e)

0.482

Inclination (i)

4.3

deg

Orbit period (P)

789.1

Earth MOID

0.00364

U parameter

8.2

Next Earth close approach

Date

2026-10-20

Nominal distance (from Earth center)

0.03112

4656077

Maximum Brightness

21.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

24.3

mag

Diameter

40 - 80*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-10-02

Observatory

Pan-STARRS 2, 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

61400.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.671213

1-sigma variation

0.002854

Unit

Eccentricity (e)

Value

0.481856

1-sigma variation

0.001007

Unit

Inclination (i)

Value

4.3304

1-sigma variation

0.0075

Unit

Long. of Ascending Node (Ω)

Value

204.8217

1-sigma variation

0.0044

Unit

Arg. of Perihelion (ω)

Value

230.4986

1-sigma variation

0.0047

Unit

Mean Anomaly (M)

Value

13.59843

1-sigma variation

0.02660

Unit

Perihelion distance

Value

0.865929

1-sigma variation

Unit

Aphelion distance

Value

2.476498

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.849013

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.013726

1-sigma variation

Unit

MOID

Value

0.003643

1-sigma variation

Unit

Orbit Period

Value

789.1260

1-sigma variation

Unit

U parameter

Value

8.2

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.14509E-6	2.87383E-6	2.15411E-5	-1.13936E-5	1.18676E-5	-7.58042E-5
e	2.87383E-6	1.01406E-6	7.60176E-6	-4.00174E-6	4.20726E-6	-2.67598E-5
i	2.15411E-5	7.60176E-6	5.69946E-5	-2.98491E-5	3.17162E-5	-2.00699E-4
Ω	-1.13936E-5	-4.00174E-6	-2.98491E-5	1.96777E-5	-1.26068E-5	1.03229E-4
ω	1.18676E-5	4.20726E-6	3.17162E-5	-1.26068E-5	2.17674E-5	-1.13518E-4
M	-7.58042E-5	-2.67598E-5	-2.00699E-4	1.03229E-4	-1.13518E-4	7.07622E-4

Date of computation: 2026-10-07 14:31 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

24.295

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

40 - 80*

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

0.369555

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-10-02.322933

Unit

Source

[2]

Last Observation

Value

2026-10-06.522694

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

32 (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 2026TP 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	1960-01-05 11:59	> 1 mo	0.1108258	0.0810874	1.9432679
EARTH	1972-11-29 23:38	> 1 mo	0.1282265	0.1022346	1.7136552
EARTH	1985-10-26 03:57	> 1 mo	0.0611965	0.0085788	11.8326136
EARTH	1998-10-13 06:46	> 1 mo	0.0184104	0.0047491	0.9600779
EARTH	2014-01-28 12:45	> 1 w	0.0738797	0.0729437	0.0344165
EARTH	2026-10-20 09:25	3.8	0.0311240	0.0309460	0.0000593
EARTH	2039-09-30 06:26	> 1 w	0.1891954	0.0089222	0.2031601
EARTH	2055-02-09 00:53	> 1 w	0.1542569	0.0727739	0.3164372
EARTH	2068-01-22 07:18	> 1 mo	0.0801281	0.0727247	0.1359534
EARTH	2080-12-04 05:38	> 1 mo	0.1296916	0.1154496	0.0599850
EARTH	2093-10-19 18:25	> 1 mo	0.0251749	0.0028127	0.5876094
EARTH	2106-10-20 02:02	> 1 mo	0.0190729	0.0024780	4.4807631
EARTH	2120-01-03 05:07	> 1 mo	0.1162746	0.0839291	22.3809241

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
327.05664240	280.13404325	0.00364318	MINIMUM
31.65335523	23.25878080	0.07286550	MINIMUM
1.60314104	335.42792780	0.13097924	SADDLE
179.88618271	152.04351139	1.46627680	SADDLE
359.23604117	151.50075554	1.87823762	SADDLE
179.60713918	331.88235023	3.46042610	MAXIMUM

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MOID Plots

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