Asteroids

2008UC7 help

Last update: 2025-07-29 02:36 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.734

Aphelion (Q)

1.905

Eccentricity (e)

0.444

Inclination (i)

1.1

deg

Orbit period (P)

553.5

Earth MOID

0.01145

U parameter

9.0

Next Earth close approach

Date

2052-10-25

Nominal distance (from Earth center)

0.13941

20855183

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.2

mag

Diameter

10 - 21*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2008-10-26

Observatory

Mt. Lemmon Survey

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.319258

1-sigma variation

0.009961

Unit

Eccentricity (e)

Value

0.443934

1-sigma variation

0.000778

Unit

Inclination (i)

Value

1.0677

1-sigma variation

0.1650

Unit

Long. of Ascending Node (Ω)

Value

78.7553

1-sigma variation

11.4744

Unit

Arg. of Perihelion (ω)

Value

42.7520

1-sigma variation

10.8771

Unit

Mean Anomaly (M)

Value

280.51767

1-sigma variation

4.56443

Unit

Perihelion distance

Value

0.733594

1-sigma variation

Unit

Aphelion distance

Value

1.904922

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.185400

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.553887

1-sigma variation

Unit

MOID

Value

0.011453

1-sigma variation

Unit

Orbit Period

Value

553.4685

1-sigma variation

Unit

U parameter

Value

9.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	9.92201E-5	7.73540E-6	-1.64294E-3	1.14286E-1	-1.08335E-1	4.54659E-2
e	7.73540E-6	6.04559E-7	-1.27996E-4	8.90417E-3	-8.44014E-3	3.54435E-3
i	-1.64294E-3	-1.27996E-4	2.72103E-2	-1.89277E0	1.79425E0	-7.52864E-1
Ω	1.14286E-1	8.90417E-3	-1.89277E0	1.31662E2	-1.24809E2	5.23705E1
ω	-1.08335E-1	-8.44014E-3	1.79425E0	-1.24809E2	1.18312E2	-4.96439E1
M	4.54659E-2	3.54435E-3	-7.52864E-1	5.23705E1	-4.96439E1	2.08340E1

Date of computation: 2025-07-29 02:36 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

27.216

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

10 - 21*

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

6164

Unit

Source

[1]

Normalized RMS of residuals

Value

0.511072

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

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

[-]

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 2008UC7 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
VENUS	1951-05-01 10:51	> 1 mo	0.0476732	0.0200711	0.1646069
EARTH	1964-11-01 09:29	> 1 w	0.0164991	0.0115278	0.2927770
EARTH	1967-11-28 21:27	> 1 mo	0.1662910	0.0173398	0.2189941
EARTH	1977-03-26 00:54	> 1 w	0.1457597	0.0155479	0.0785824
EARTH	1980-04-16 19:31	> 1 w	0.0492165	0.0147871	0.2053191
MARS	2005-08-23 13:26	508.5	0.0287139	0.0100722	0.0784337
EARTH	2008-11-02 16:40	6.0	0.0114925	0.0112818	0.0000702
EARTH	2011-12-10 07:47	> 1 mo	0.1934249	0.0333543	0.0560188
EARTH	2021-04-12 06:11	> 1 w	0.0314130	0.0151548	0.3237909
EARTH	2024-04-24 00:42	> 1 w	0.1693617	0.0149738	0.2032141
VENUS	2042-05-08 08:38	> 1 mo	0.0271784	0.0022650	0.2531550
MARS	2052-08-30 16:03	> 1 mo	0.0099571	0.0083174	2.3163164
EARTH	2052-10-25 16:20	> 1 mo	0.1394083	0.0135180	5.3378029
EARTH	2055-11-08 00:40	> 1 mo	0.0552870	0.0116755	7.6717109
EARTH	2068-04-11 07:12	> 1 mo	0.0444510	0.0158943	3.8828930
EARTH	2071-04-23 02:19	> 1 mo	0.1308042	0.0211177	0.7696716
VENUS	2084-10-03 07:26	> 1 mo	0.0426480	0.0190368	17.2605161
EARTH	2105-10-25 23:16	> 1 mo	0.1637326	0.0117068	7.4029532
EARTH	2108-11-03 12:39	> 1 mo	0.0162398	0.0118073	7.4570715
EARTH	2111-11-12 20:15	> 1 mo	0.0867963	0.0126702	13.8184787
EARTH	2114-12-04 21:52	> 1 mo	0.1778254	0.0242591	10.5495332
MARS	2119-11-25 01:46	> 1 mo	0.0230075	0.0223303	2.5388930
MARS	2122-04-05 08:33	> 1 mo	0.0405994	0.0083158	12.9140780

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
304.02152634	298.94498506	0.01145282	MINIMUM
57.36591014	101.15990928	0.01519529	MINIMUM
0.96252556	20.37849856	0.25124008	SADDLE
180.36159098	199.65727448	0.88973793	SADDLE
0.91859339	200.29586074	1.74888837	SADDLE
180.32112132	19.62683599	2.88942838	MAXIMUM

Download:

MOID Plots

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