Asteroids

2026PW8 help

Last update: 2026-08-20 13:15 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Aten

Perihelion (q)

0.596

Aphelion (Q)

1.079

Eccentricity (e)

0.288

Inclination (i)

8.3

deg

Orbit period (P)

279.8

Earth MOID

0.00570

U parameter

6.3

Next Earth close approach

Date

2036-10-22

Nominal distance (from Earth center)

0.19798

29617745

Maximum Brightness

27.9

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

28.1

mag

Diameter

6 - 14*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-08-15

Observatory

TransAstra at Springbrook

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

0.837116

1-sigma variation

0.000030

Unit

Eccentricity (e)

Value

0.288470

1-sigma variation

0.000078

Unit

Inclination (i)

Value

8.3255

1-sigma variation

0.0031

Unit

Long. of Ascending Node (Ω)

Value

143.1693

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

29.9974

1-sigma variation

0.0008

Unit

Mean Anomaly (M)

Value

41.75394

1-sigma variation

0.01236

Unit

Perihelion distance

Value

0.595633

1-sigma variation

Unit

Aphelion distance

Value

1.078599

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.373019

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.009977

1-sigma variation

Unit

MOID

Value

0.005695

1-sigma variation

Unit

Orbit Period

Value

279.7545

1-sigma variation

Unit

U parameter

Value

6.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.81466E-10	-2.30669E-9	-9.12839E-8	2.35900E-9	-2.13206E-8	3.66288E-7
e	-2.30669E-9	6.04075E-9	2.38993E-7	-6.18540E-9	5.64931E-8	-9.59982E-7
i	-9.12839E-8	2.38993E-7	9.45948E-6	-2.44610E-7	2.22506E-6	-3.79684E-5
Ω	2.35900E-9	-6.18540E-9	-2.44610E-7	6.35894E-9	-5.90381E-8	9.84328E-7
ω	-2.13206E-8	5.64931E-8	2.22506E-6	-5.90381E-8	6.27447E-7	-9.09089E-6
M	3.66288E-7	-9.59982E-7	-3.79684E-5	9.84328E-7	-9.09089E-6	1.52687E-4

Date of computation: 2026-08-20 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

28.128

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

6 - 14*

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

0.394842

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-08-15.581111

Unit

Source

[2]

Last Observation

Value

2026-08-19.505088

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

43 (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 2026PW8 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	1951-10-12 05:38	> 1 d	0.1259542	0.1189116	0.0026814
EARTH	1954-08-13 05:11	> 1 d	0.0213507	0.0080004	0.0381463
EARTH	1964-10-19 13:35	581.5	0.1344766	0.1309577	0.0012920
EARTH	1967-08-13 09:40	539.4	0.0207113	0.0076934	0.0073087
EARTH	1977-09-25 03:14	> 1 d	0.1202483	0.1166948	0.0013363
EARTH	1980-08-12 07:40	126.4	0.1523232	0.1354458	0.0056285
EARTH	1990-08-24 03:37	322.5	0.0635244	0.0609784	0.0008504
EARTH	2000-10-20 08:50	485.4	0.1358226	0.1332782	0.0010274
EARTH	2003-08-12 13:23	154.9	0.0462408	0.0295004	0.0056329
EARTH	2013-09-07 04:06	> 1 d	0.1000648	0.0953864	0.0015843
EARTH	2023-10-24 16:15	25.8	0.1586165	0.1570685	0.0005238
EARTH	2026-08-14 16:50	< 1 min	0.0072263	0.0072198	0.0000021
EARTH	2036-10-22 18:00	40.3	0.1979824	0.1915963	0.0021591
EARTH	2039-09-01 00:18	1344.1	0.0862099	0.0798537	0.0021400
EARTH	2042-08-13 11:18	137.9	0.1864943	0.1722363	0.0047537
EARTH	2052-10-07 06:16	> 1 d	0.1277847	0.1261404	0.0007806
EARTH	2055-08-12 10:43	183.5	0.0496228	0.0293642	0.0068027
EARTH	2065-10-21 17:10	80.9	0.1455624	0.1446935	0.0002914
EARTH	2068-08-15 12:58	174.0	0.0199300	0.0167973	0.0010523
EARTH	2081-10-08 11:06	326.6	0.1282205	0.1281081	0.0000448
EARTH	2084-08-12 17:37	63.0	0.0178013	0.0149935	0.0009437
EARTH	2094-10-23 00:03	285.0	0.1518296	0.1435346	0.0031524
EARTH	2097-08-15 11:58	1287.8	0.0184969	0.0049766	0.0081594
EARTH	2110-10-02 08:05	> 1 w	0.1254992	0.1222713	0.0073719
EARTH	2113-08-12 20:24	1349.8	0.0527017	0.0058885	0.0628162
EARTH	2123-10-24 17:57	150.5	0.1759607	0.1356772	0.0289209
EARTH	2126-08-28 09:13	> 1 w	0.0757768	0.0244084	0.0232089

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
138.01037486	217.52308640	0.00569509	MINIMUM
10.45317069	80.91591351	0.40554848	SADDLE
6.39541809	255.50198736	1.59960483	SADDLE
181.89309524	70.73106451	2.07143270	MAXIMUM

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MOID Plots

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