Asteroids

2007DB61 help

Last update: 2025-12-09 13:01 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.515

Aphelion (Q)

1.107

Eccentricity (e)

0.365

Inclination (i)

5.4

deg

Orbit period (P)

266.9

Earth MOID

0.01255

U parameter

0.8

Next Earth close approach

Date

2026-02-21

Nominal distance (from Earth center)

0.02294

3432028

Maximum Brightness

17.4

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

23.7

mag

Diameter

50 - 110*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2007-02-25

Observatory

Lincoln Laboratory ETS, New Mexico

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

0.811222

1-sigma variation

2.458E-9

Unit

Eccentricity (e)

Value

0.364638

1-sigma variation

2.467E-7

Unit

Inclination (i)

Value

5.3814

1-sigma variation

8.409E-6

Unit

Long. of Ascending Node (Ω)

Value

159.0346

1-sigma variation

2.432E-5

Unit

Arg. of Perihelion (ω)

Value

209.3942

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

349.66171

1-sigma variation

0.00014

Unit

Perihelion distance

Value

0.515420

1-sigma variation

Unit

Aphelion distance

Value

1.107024

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.039431

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.476091

1-sigma variation

Unit

MOID

Value

0.012550

1-sigma variation

Unit

Orbit Period

Value

266.8752

1-sigma variation

Unit

U parameter

Value

0.8

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	6.04336E-18	5.10561E-16	1.69132E-14	-2.39990E-14	1.66827E-13	-3.27508E-13
e	5.10561E-16	6.08795E-14	1.47675E-12	-4.36403E-12	1.93021E-11	-3.29148E-11
i	1.69132E-14	1.47675E-12	7.07145E-11	-7.70534E-11	4.95349E-10	-9.44375E-10
Ω	-2.39990E-14	-4.36403E-12	-7.70534E-11	5.91541E-10	-1.50852E-9	1.95951E-9
ω	1.66827E-13	1.93021E-11	4.95349E-10	-1.50852E-9	6.38372E-9	-1.07219E-8
M	-3.27508E-13	-3.29148E-11	-9.44375E-10	1.95951E-9	-1.07219E-8	1.95594E-8

Date of computation: 2025-12-09 13:01 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

23.727

Unit

mag

Source

[3]

Slope Parameter (G)

Value

0.15**

Unit

Source

[3]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[4]

Diameter

Value

50 - 110*

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

6959

Unit

Source

[1]

Unobserved

Value

2833

Unit

Source

[1]

Normalized RMS of residuals

Value

0.61102

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

1999-03-21.433108

Unit

Source

[2]

Last Observation

Value

2018-04-09.31519

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

71 (4)

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 2007DB61 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	1950-05-03 13:13	< 1 min	0.1343785	0.1343594	0.0000063
EARTH	1955-02-21 05:35	< 1 min	0.1819928	0.1819666	0.0000087
EARTH	1958-03-30 08:19	3.1	0.1191943	0.1191931	0.0000004
EARTH	1966-02-18 23:22	< 1 min	0.0690266	0.0690089	0.0000059
EARTH	1969-04-20 03:16	1.3	0.1024263	0.1024231	0.0000011
EARTH	1977-02-20 13:01	< 1 min	0.0159653	0.0159645	0.0000003
EARTH	1980-05-01 10:01	< 1 min	0.0832185	0.0832179	0.0000002
EARTH	1988-03-12 23:15	< 1 min	0.1032550	0.1032542	0.0000003
EARTH	1991-05-03 02:57	< 1 min	0.1693562	0.1693553	0.0000003
EARTH	1996-02-20 03:41	< 1 min	0.1237209	0.1237203	0.0000002
EARTH	1999-04-13 03:28	< 1 min	0.1129044	0.1129034	0.0000003
EARTH	2007-02-21 09:56	< 1 min	0.0181638	0.0181633	0.0000002
EARTH	2010-05-03 01:21	< 1 min	0.0909531	0.0909527	0.0000001
EARTH	2018-04-01 01:48	< 1 min	0.1192875	0.1192868	0.0000002
EARTH	2026-02-21 19:17	< 1 min	0.0229417	0.0229408	0.0000003
EARTH	2029-05-03 02:56	< 1 min	0.1066914	0.1066904	0.0000003
EARTH	2034-02-19 21:53	< 1 min	0.1310572	0.1310567	0.0000002
EARTH	2037-04-20 09:54	< 1 min	0.1018573	0.1018562	0.0000004
EARTH	2045-03-18 13:11	< 1 min	0.1109814	0.1109806	0.0000003
EARTH	2053-02-21 16:06	< 1 min	0.0233713	0.0233698	0.0000005
EARTH	2056-05-02 16:25	< 1 min	0.1228682	0.1228677	0.0000002
EARTH	2061-02-18 21:55	< 1 min	0.0725420	0.0725409	0.0000004
EARTH	2064-04-30 02:52	< 1 min	0.0849940	0.0849934	0.0000002
EARTH	2069-02-20 21:57	< 1 min	0.1793141	0.1793134	0.0000003
EARTH	2072-04-14 00:01	< 1 min	0.1108043	0.1108031	0.0000004
EARTH	2080-03-19 19:11	< 1 min	0.1129202	0.1129199	0.0000001
EARTH	2088-02-27 20:34	< 1 min	0.0599931	0.0599906	0.0000008
EARTH	2091-05-02 20:57	< 1 min	0.1645209	0.1645168	0.0000014
EARTH	2096-02-20 07:20	< 1 min	0.0225906	0.0225883	0.0000008
EARTH	2099-05-02 22:51	< 1 min	0.0887809	0.0887805	0.0000001
EARTH	2104-02-22 22:43	< 1 min	0.1856126	0.1856093	0.0000011
EARTH	2107-04-11 01:59	< 1 min	0.1164177	0.1164171	0.0000002
EARTH	2115-03-08 04:20	1.1	0.0881104	0.0881045	0.0000020
EARTH	2118-05-03 12:34	< 1 min	0.1821556	0.1821466	0.0000030
EARTH	2123-02-20 18:01	< 1 min	0.0356269	0.0356143	0.0000042

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
127.99576857	49.58162255	0.01254988	MINIMUM
225.47001106	118.06386007	0.08399151	MINIMUM
183.11218211	88.23800949	0.11813339	SADDLE
356.09090149	263.21733000	0.48768492	SADDLE
355.45923439	82.28243922	1.51422565	SADDLE
177.47160054	264.39913420	2.10850010	MAXIMUM

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MOID Plots

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