Asteroids

2007DG8 help

Last update: 2025-11-24 16:53 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.851

Aphelion (Q)

1.865

Eccentricity (e)

0.374

Inclination (i)

3.1

deg

Orbit period (P)

578.0

Earth MOID

0.02112

U parameter

0.0

Next Earth close approach

Date

2026-02-28

Nominal distance (from Earth center)

0.02548

3812156

Maximum Brightness

20.1

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

25.2

mag

Diameter

24 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2007-02-21

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

1.357919

1-sigma variation

2.229E-9

Unit

Eccentricity (e)

Value

0.373651

1-sigma variation

1.005E-7

Unit

Inclination (i)

Value

3.0836

1-sigma variation

9.433E-6

Unit

Long. of Ascending Node (Ω)

Value

131.7362

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

90.2564

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

268.53606

1-sigma variation

0.00003

Unit

Perihelion distance

Value

0.850532

1-sigma variation

Unit

Aphelion distance

Value

1.865307

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.184734

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.150389

1-sigma variation

Unit

MOID

Value

0.021119

1-sigma variation

Unit

Orbit Period

Value

577.9755

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.96697E-18	-3.13040E-17	8.70429E-15	6.70227E-14	-8.27081E-14	8.00239E-15
e	-3.13040E-17	1.00938E-14	-8.22878E-13	-5.27571E-12	7.36061E-12	-2.89564E-12
i	8.70429E-15	-8.22878E-13	8.89783E-11	4.00140E-10	-5.63643E-10	2.20058E-10
Ω	6.70227E-14	-5.27571E-12	4.00140E-10	3.97765E-9	-5.28088E-9	1.60533E-9
ω	-8.27081E-14	7.36061E-12	-5.63643E-10	-5.28088E-9	7.09915E-9	-2.25684E-9
M	8.00239E-15	-2.89564E-12	2.20058E-10	1.60533E-9	-2.25684E-9	8.78522E-10

Date of computation: 2025-11-24 16:53 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

25.235

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

24 - 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

[-]

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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

4186

Unit

Source

[1]

Unobserved

Value

2735

Unit

Source

[1]

Normalized RMS of residuals

Value

0.556106

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2007-02-21.24801

Unit

Source

[2]

Last Observation

Value

2018-08-08.39788

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

42 (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 2007DG8 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	1953-07-10 21:50	< 1 min	0.0225104	0.0225099	0.0000001
EARTH	1961-03-23 05:40	< 1 min	0.1153607	0.1153604	0.0000001
EARTH	1972-07-22 20:53	< 1 min	0.1728430	0.1728402	0.0000009
EARTH	1980-05-16 08:49	< 1 min	0.1614642	0.1614636	0.0000002
EARTH	1988-02-22 00:09	< 1 min	0.0984565	0.0984543	0.0000008
EARTH	1999-06-29 11:31	< 1 min	0.0836906	0.0836884	0.0000007
EARTH	2007-03-01 08:10	< 1 s	0.0252823	0.0252821	0.0000001
EARTH	2018-07-08 22:01	< 1 min	0.0334297	0.0334290	0.0000002
EARTH	2026-02-28 18:36	< 1 min	0.0254827	0.0254825	0.0000001
EARTH	2037-06-14 05:07	2.6	0.1249497	0.1249404	0.0000031
EARTH	2045-02-18 06:08	< 1 min	0.1520135	0.1519892	0.0000081
EARTH	2056-04-29 22:23	5.1	0.1646210	0.1646188	0.0000007
EARTH	2067-07-20 22:47	< 1 min	0.1132044	0.1131857	0.0000062
EARTH	2075-03-31 06:44	1.8	0.1299852	0.1299794	0.0000019
EARTH	2086-07-18 01:33	< 1 min	0.0734614	0.0734539	0.0000025
MARS	2088-04-20 09:51	< 1 min	0.0374401	0.0374323	0.0000026
EARTH	2094-04-05 22:58	2.2	0.1401170	0.1401119	0.0000017
EARTH	2105-07-24 21:57	< 1 min	0.1668604	0.1668437	0.0000056
EARTH	2113-05-06 09:18	3.1	0.1653204	0.1653203	0.0000000
EARTH	2121-02-18 00:40	< 1 min	0.1897718	0.1897598	0.0000040

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
48.42128422	188.17347961	0.02111890	MINIMUM
315.61811903	57.54521619	0.02536585	MINIMUM
2.32088418	123.14639817	0.16697807	SADDLE
181.09878529	301.88272840	0.87660608	SADDLE
2.38656350	303.26360321	1.84144896	SADDLE
181.13479198	121.91518841	2.87410088	MAXIMUM

Download:

MOID Plots

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