Asteroids

2008UC7

Last update: 2021-04-13 13:23 UTC

Orbital Properties

Epoch

59200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.734

Aphelion (Q)

1.908

Eccentricity (e)

0.445

Inclination (i)

1.1

deg

Orbit period (P)

554.6

days

Earth MOID

0.01148

Next Earth close approach

Date

2024-04-24

Nominal distance (from Earth center)

0.16949

25355879

Maximum Brightness

126.2

Orbit Visualiser

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Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

Diameter

14*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2008-10-26

Observatory

Mt. Lemmon Survey

External links

Proper elements

Epoch

Near present day

Near middle of observation arc

Orbit properties

Epoch
Semimajor Axis
Eccentricity (e)
Inclination (i)
Ascending Node (Ω)
Arg. of Perihelion (ω)
Mean Anomaly (M)
Perihelion
Aphelion
Asc. Node-Earth Sep.
Desc. Node-Earth Sep.
MOID
Orbit Period

Value

1-sigma variation

Unit

Epoch

Value

59200.0

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.321001

1-sigma variation

0.003097

Unit

Eccentricity (e)

Value

0.444604

1-sigma variation

0.002363

Unit

Inclination (i)

Value

1.06

1-sigma variation

0.005398

Unit

Ascending Node (Ω)

Value

79.323

1-sigma variation

0.1887

Unit

Arg. of Perihelion (ω)

Value

42.253

1-sigma variation

0.1793

Unit

Mean Anomaly (M)

Value

320.059

1-sigma variation

14.04

Unit

Perihelion

Value

0.7337

1-sigma variation

Unit

Aphelion

Value

1.9083

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.1868

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.56107

1-sigma variation

Unit

MOID

Value

0.01148

1-sigma variation

Unit

Orbit Period

Value

554.5656

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.59267E-6	7.31797E-6	1.50546E-5	-3.34734E-4	2.65199E-4	-4.34921E-2
e	7.31797E-6	5.58410E-6	1.15722E-5	-2.61117E-4	2.08186E-4	-3.31787E-2
i	1.50546E-5	1.15722E-5	2.91399E-5	-8.88420E-4	7.86104E-4	-6.82468E-2
Ω	-3.34734E-4	-2.61117E-4	-8.88420E-4	3.55978E-2	-3.36191E-2	1.51704E0
ω	2.65199E-4	2.08186E-4	7.86104E-4	-3.36191E-2	3.21540E-2	-1.20177E0
M	-4.34921E-2	-3.31787E-2	-6.82468E-2	1.51704E0	-1.20177E0	1.97188E2

Date of computation: 2020-10-20 18:14 UTC

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)

Taxononomy

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

27.009

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

Unit

Source

[-]

Diameter

Value

14*

Unit

Source

[3]

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

[-]

Sources

No.	Name	Additional
[1]	ESA ODIM	ESA orbit determination and impact monitoring system
[2]	NEODyS	NEO Dynamic Site: https://newton.spacedys.com/neodys2
[3]	Estimation	Estimated from absolute magnitude

**Estimated value

Observational Information

Arc Length
Unobserved

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

days

Source

[1]

Unobserved

Value

4550

Unit

days

Source

[1]

Astrometry Summary

RMS of Residuals
First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

RMS of Residuals

Value

0.511067

Unit

arcseconds

Source

[1]

First Observation

Value

2008-10-26.28896

Unit

Source

[2]

Last Observation

Value

2008-10-27.97453

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

25 (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

[3]

Last Observation

Value

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[1]

Note: The ASCII file is in a format suitable for OrbFit input.

Sources

No.	Name	Additional
[1]	ESA ODIM	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 2008UC7 from 1950 to 2150

Body	Date	MJD	Nominal distance (au)	Min possible distance (au)	Stretching (au)	Width (au)	Close approach probability
VENUS	1951-05-01.49158	33767.5	0.0478142	0.0263524	3.048E-1	1.236E-5	4.93E-2
EARTH	1964-11-01.41329	38700.4	0.0163097	0.0115477	4.108E-1	1.118E-5	1.62E-1
EARTH	1967-11-28.94469	39822.9	0.1664335	0.0114950	2.205E-1	2.445E-5	3.01E-1
EARTH	1977-03-26.02411	43228.0	0.1458104	0.0148447	7.810E-2	1.482E-5	6.16E-1
EARTH	1980-04-16.80557	44345.8	0.0490835	0.0148663	2.144E-1	3.439E-6	3.10E-1
MARS	2005-08-23.56055	53605.6	0.0286629	0.0101672	8.392E-2	4.529E-5	1.94E-1
EARTH	2008-11-02.69518	54772.7	0.0114926	0.0114838	7.023E-5	4.791E-7	1.00E0
EARTH	2011-12-10.34012	55905.3	0.1934613	0.0114010	5.646E-2	3.009E-5	5.19E-1
EARTH	2021-04-12.27719	59316.3	0.0312030	0.0151827	3.698E-1	3.756E-6	1.80E-1
EARTH	2024-04-24.03741	60424.0	0.1694936	0.0151870	2.039E-1	3.388E-6	3.26E-1
VENUS	2042-05-08.13623	67012.1	0.0270166	0.0250565	2.479E-1	2.423E-5	6.70E-2
MARS	2052-08-30.61815	70779.6	0.0117349	0.0083022	4.481E0	4.583E-5	3.67E-3
EARTH	2052-10-25.49036	70835.5	0.1429197	0.0118431	5.499E0	1.129E-5	1.21E-2
EARTH	2055-11-07.60914	71943.6	0.0508667	0.0118382	6.313E0	1.169E-5	1.05E-2
EARTH	2068-04-11.20838	76482.2	0.0453512	0.0155967	6.671E-1	2.575E-6	9.97E-2
EARTH	2071-04-23.15349	77589.2	0.1319885	0.0156094	2.763E0	2.725E-6	2.40E-2
VENUS	2084-10-05.22086	82503.2	0.0354002	0.0247494	8.369E0	5.272E-5	1.82E-3

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