Asteroids

2026CW2 help

Last update: 2026-02-23 13:15 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.667

Aphelion (Q)

1.141

Eccentricity (e)

0.262

Inclination (i)

9.6

deg

Orbit period (P)

313.8

Earth MOID

0.03471

U parameter

5.9

Next Earth close approach

Date

2032-02-15

Nominal distance (from Earth center)

0.09789

14644120

Maximum Brightness

22.2

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.5

mag

Diameter

21 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2026-02-13

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.903632

1-sigma variation

0.000018

Unit

Eccentricity (e)

Value

0.262196

1-sigma variation

0.000224

Unit

Inclination (i)

Value

9.5618

1-sigma variation

0.0101

Unit

Long. of Ascending Node (Ω)

Value

324.6196

1-sigma variation

0.0010

Unit

Arg. of Perihelion (ω)

Value

319.4367

1-sigma variation

0.0030

Unit

Mean Anomaly (M)

Value

147.53821

1-sigma variation

0.02400

Unit

Perihelion distance

Value

0.666703

1-sigma variation

Unit

Aphelion distance

Value

1.140560

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.311555

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.062666

1-sigma variation

Unit

MOID

Value

0.034715

1-sigma variation

Unit

Orbit Period

Value

313.7514

1-sigma variation

Unit

U parameter

Value

5.9

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.21365E-10	-4.01956E-9	-1.80590E-7	-1.82614E-8	5.34243E-8	-4.29665E-7
e	-4.01956E-9	5.03402E-8	2.26131E-6	2.28659E-7	-6.70643E-7	5.38409E-6
i	-1.80590E-7	2.26131E-6	1.01588E-4	1.02725E-5	-3.01134E-5	2.41833E-4
Ω	-1.82614E-8	2.28659E-7	1.02725E-5	1.03881E-6	-3.04492E-6	2.44534E-5
ω	5.34243E-8	-6.70643E-7	-3.01134E-5	-3.04492E-6	8.97467E-6	-7.18054E-5
M	-4.29665E-7	5.38409E-6	2.41833E-4	2.44534E-5	-7.18054E-5	5.76000E-4

Date of computation: 2026-02-23 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

25.515

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

21 - 50*

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

0.608291

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2026-02-13.413317

Unit

Source

[2]

Last Observation

Value

2026-02-22.494663

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

29 (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 2026CW2 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	1951-11-06 13:10	133.0	0.1714195	0.1680488	0.0012034
EARTH	1959-02-23 23:10	101.0	0.1226551	0.1095503	0.0043957
EARTH	1965-02-24 02:53	76.3	0.0445919	0.0380040	0.0026159
EARTH	1971-02-21 16:28	364.7	0.0559166	0.0493199	0.0023151
VENUS	1973-03-03 16:12	570.2	0.0442876	0.0428497	0.0006698
EARTH	1977-02-04 21:25	728.8	0.1388911	0.1344880	0.0014758
VENUS	1977-06-16 13:18	639.9	0.0489970	0.0473454	0.0006648
EARTH	1983-01-13 22:05	845.9	0.1898150	0.1874283	0.0008014
EARTH	1994-10-22 07:51	338.1	0.1883911	0.1864091	0.0006811
EARTH	1994-11-18 17:35	644.8	0.1887527	0.1873767	0.0004716
EARTH	2000-11-02 17:14	58.7	0.1624539	0.1624198	0.0000253
EARTH	2006-11-07 01:14	60.7	0.1744872	0.1723975	0.0007122
EARTH	2014-02-23 13:28	40.7	0.1326529	0.1275365	0.0017090
EARTH	2020-02-25 00:15	4.9	0.0633812	0.0608190	0.0008639
EARTH	2026-02-23 08:17	< 1 min	0.0374867	0.0373837	0.0000344
VENUS	2027-04-20 07:34	179.3	0.0439134	0.0432843	0.0002340
EARTH	2032-02-15 12:27	372.8	0.0978899	0.0946452	0.0010882
EARTH	2038-01-30 18:59	1108.0	0.1534211	0.1492547	0.0014024
EARTH	2044-01-15 21:47	> 1 d	0.1862015	0.1830829	0.0010647
EARTH	2061-10-23 07:49	1155.9	0.1888000	0.1802134	0.0030960
EARTH	2061-11-20 15:58	> 1 d	0.1883786	0.1818085	0.0023284
EARTH	2067-11-03 13:59	267.5	0.1629263	0.1611144	0.0008980
VENUS	2072-11-01 12:49	990.7	0.0491058	0.0454763	0.0019740
EARTH	2073-11-07 13:53	250.1	0.1790556	0.1737659	0.0019279
EARTH	2075-02-22 18:54	139.8	0.1834468	0.1719282	0.0038455
VENUS	2077-02-13 23:24	1399.2	0.0469168	0.0441663	0.0016772
EARTH	2081-02-24 06:31	62.6	0.0777536	0.0643914	0.0045976
EARTH	2087-02-23 15:57	299.1	0.0364493	0.0355232	0.0012080
EARTH	2093-02-17 17:22	> 1 d	0.0809430	0.0558842	0.0092187
EARTH	2099-02-06 08:11	> 1 d	0.1336300	0.1056143	0.0099163
EARTH	2105-01-23 06:29	> 1 d	0.1725910	0.1527084	0.0071901
EARTH	2111-01-07 22:30	> 1 d	0.1964407	0.1883005	0.0032875
EARTH	2122-11-01 15:27	522.5	0.1764022	0.1628866	0.0062922
VENUS	2126-12-22 06:37	> 1 d	0.0476345	0.0449667	0.0038582

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
243.70283447	52.64812890	0.03471477	MINIMUM
103.46870947	301.28356057	0.16197298	MINIMUM
162.45360792	349.82955616	0.20352544	SADDLE
352.12455756	172.66165699	0.36499529	SADDLE
358.17742764	0.78707364	1.64781158	SADDLE
181.13717911	183.95208094	2.15559807	MAXIMUM

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MOID Plots

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