Asteroids

424482 2008DG5 help

Last update: 2025-10-16 13:16 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.951

Aphelion (Q)

1.563

Eccentricity (e)

0.243

Inclination (i)

5.7

deg

Orbit period (P)

514.6

Earth MOID

0.01775

U parameter

0.0

Next Earth close approach

Date

2032-09-18

Nominal distance (from Earth center)

0.09925

14848048

Maximum Brightness

17.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

19.6

mag

Diameter

300 - 700*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2008-02-28

Observatory

Catalina Sky 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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.256790

1-sigma variation

1.988E-9

Unit

Eccentricity (e)

Value

0.243451

1-sigma variation

1.351E-8

Unit

Inclination (i)

Value

5.6557

1-sigma variation

2.390E-6

Unit

Long. of Ascending Node (Ω)

Value

243.8359

1-sigma variation

4.346E-6

Unit

Arg. of Perihelion (ω)

Value

59.6993

1-sigma variation

7.278E-6

Unit

Mean Anomaly (M)

Value

87.16789

1-sigma variation

2.803E-6

Unit

Perihelion distance

Value

0.950823

1-sigma variation

Unit

Aphelion distance

Value

1.562756

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.038377

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.361031

1-sigma variation

Unit

MOID

Value

0.017754

1-sigma variation

Unit

Orbit Period

Value

514.6267

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.95228E-18	-1.61646E-17	-1.25423E-15	2.40794E-15	-1.06366E-14	4.07027E-15
e	-1.61646E-17	1.82586E-16	6.68691E-15	5.87423E-16	7.01852E-14	-3.41641E-14
i	-1.25423E-15	6.68691E-15	5.71250E-12	4.57575E-12	-1.57674E-12	-1.53552E-12
Ω	2.40794E-15	5.87423E-16	4.57575E-12	1.88843E-11	-2.04563E-11	1.11565E-12
ω	-1.06366E-14	7.01852E-14	-1.57674E-12	-2.04563E-11	5.29743E-11	-1.65682E-11
M	4.07027E-15	-3.41641E-14	-1.53552E-12	1.11565E-12	-1.65682E-11	7.85422E-12

Date of computation: 2025-10-16 13:16 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

[1]

Taxonomy (all)

Value

Unit

Source

[2]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

19.624

Unit

mag

Source

[3]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[3]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[4]

Diameter

Value

300 - 700*

Unit

Source

[4]

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]	EARN	1.) Alexey V. Sergeyev and Benoit Carry A&A, 652 (2021) A59
[2]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[3]	ESA Aegis	ESA orbit determination and impact monitoring system
[4]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

8967

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.451762

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2001-03-28.28505

Unit

Source

[2]

Last Observation

Value

2025-10-15.549384

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

1339 (7)

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 424482 2008DG5 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
EARTH	1956-09-22 15:22	< 1 min	0.1221431	0.1221408	0.0000008
EARTH	1980-05-28 11:43	< 1 min	0.0581031	0.0581020	0.0000004
EARTH	1987-07-05 12:55	< 1 min	0.0913576	0.0913569	0.0000002
EARTH	1994-09-19 06:44	< 1 min	0.1001477	0.1001475	0.0000001
EARTH	2018-05-20 01:38	< 1 s	0.1926578	0.1926576	0.0000001
EARTH	2025-06-05 23:57	< 1 s	0.0233478	0.0233478	0.0000000
EARTH	2032-09-18 23:17	< 1 s	0.0992531	0.0992529	0.0000001
EARTH	2049-05-19 16:49	< 1 min	0.1964160	0.1964148	0.0000004
EARTH	2056-07-01 12:16	< 1 min	0.0870898	0.0870890	0.0000003
EARTH	2063-09-29 04:44	< 1 min	0.1803005	0.1802995	0.0000003
EARTH	2080-06-02 05:42	< 1 s	0.0236447	0.0236446	0.0000000
EARTH	2087-08-13 05:53	< 1 min	0.1093801	0.1093800	0.0000000
EARTH	2094-09-28 01:09	< 1 min	0.1553195	0.1553188	0.0000002
EARTH	2118-05-30 19:41	< 1 min	0.0588716	0.0588698	0.0000006
EARTH	2125-07-01 20:45	< 1 min	0.0861504	0.0861503	0.0000000

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
319.35618902	150.91708498	0.01775404	MINIMUM
39.17662279	252.29422793	0.09558079	MINIMUM
9.37380546	214.74543920	0.11008949	SADDLE
180.68888946	22.40438976	0.58756384	SADDLE
359.02207066	21.22110185	1.93383896	SADDLE
178.69355822	200.85299699	2.57749250	MAXIMUM

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MOID Plots

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