Asteroids

2007XB23 help

Last update: 2025-01-21 21:01 UTC

Orbital Properties

Epoch

60600.0

MJD

Orbit type

Apollo

Perihelion (q)

0.984

Aphelion (Q)

1.098

Eccentricity (e)

0.055

Inclination (i)

8.5

deg

Orbit period (P)

387.9

Earth MOID

0.00132

U parameter

0.3

Next Earth close approach

Date

2025-05-27

Nominal distance (from Earth center)

0.09029

13506875

Maximum Brightness

23.9

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

11 - 24*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2007-12-14

Observatory

Siding Spring 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

60600.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.040836

1-sigma variation

5.021E-9

Unit

Eccentricity (e)

Value

0.054530

1-sigma variation

2.487E-8

Unit

Inclination (i)

Value

8.5282

1-sigma variation

0.0002

Unit

Long. of Ascending Node (Ω)

Value

260.1758

1-sigma variation

3.885E-6

Unit

Arg. of Perihelion (ω)

Value

193.1376

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

296.50360

1-sigma variation

0.00013

Unit

Perihelion distance

Value

0.984078

1-sigma variation

Unit

Aphelion distance

Value

1.097593

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.082032

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.001319

1-sigma variation

Unit

MOID

Value

0.001317

1-sigma variation

Unit

Orbit Period

Value

387.8570

1-sigma variation

Unit

U parameter

Value

0.3

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.52079E-17	2.28789E-17	8.67638E-13	-5.82697E-15	4.15662E-13	-3.42295E-13
e	2.28789E-17	6.18280E-16	3.35066E-13	1.56160E-14	3.32036E-12	-2.96785E-12
i	8.67638E-13	3.35066E-13	3.02247E-8	-2.12055E-10	1.20019E-8	-9.70273E-9
Ω	-5.82697E-15	1.56160E-14	-2.12055E-10	1.50929E-11	-5.45850E-12	-1.35794E-11
ω	4.15662E-13	3.32036E-12	1.20019E-8	-5.45850E-12	2.20393E-8	-1.93405E-8
M	-3.42295E-13	-2.96785E-12	-9.70273E-9	-1.35794E-11	-1.93405E-8	1.70108E-8

Date of computation: 2024-12-13 11:58 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

26.975

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

11 - 24*

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

6208

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.733338

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2007-12-14.56193

Unit

Source

[2]

Last Observation

Value

2024-12-12.140372

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

22 (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 2007XB23 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	1950-10-14 04:18	> 1 w	0.0453545	0.0318929	0.5099473
VENUS	1951-09-13 16:09	> 1 w	0.0449196	0.0240341	0.6964268
EARTH	1952-01-12 19:21	> 1 w	0.1490186	0.1046844	0.5198226
EARTH	1953-11-26 03:45	> 1 w	0.1740882	0.0763615	0.7936855
EARTH	1962-11-27 06:38	> 1 mo	0.0655797	0.0141391	1.3429244
EARTH	1971-12-13 22:01	216.0	0.0000748	0.0000071	0.0006387
EARTH	1972-06-19 10:08	267.6	0.0647636	0.0628181	0.0006556
EARTH	1972-12-17 19:33	31.6	0.1567428	0.1540332	0.0009034
EARTH	1973-05-25 05:59	136.6	0.0975098	0.0950292	0.0008299
EARTH	2006-12-15 23:21	< 1 min	0.1642343	0.1641442	0.0000300
EARTH	2007-12-13 04:03	< 1 min	0.0006646	0.0006646	0.0000000
EARTH	2008-05-07 06:13	1.5	0.1375037	0.1375004	0.0000011
EARTH	2024-12-11 13:42	< 1 s	0.0059243	0.0059240	0.0000001
EARTH	2025-05-27 14:11	< 1 min	0.0902879	0.0902819	0.0000020
EARTH	2049-07-03 07:21	22.8	0.1253760	0.1251651	0.0000703
EARTH	2049-12-12 20:50	8.0	0.0179767	0.0176810	0.0000986
EARTH	2050-05-17 22:49	18.8	0.1215963	0.1215949	0.0000005
EARTH	2070-12-04 05:48	214.5	0.1353961	0.1214344	0.0046543
EARTH	2071-06-12 14:52	1381.2	0.0621451	0.0608862	0.0008355
EARTH	2071-12-21 04:06	114.8	0.1630137	0.1488682	0.0047159
EARTH	2092-12-08 10:02	494.5	0.0479096	0.0293263	0.0061947
EARTH	2093-05-30 06:13	1194.5	0.0755589	0.0698096	0.0023337
EARTH	2115-06-29 13:11	> 1 w	0.1056682	0.0760186	0.0269524
EARTH	2115-12-16 00:56	> 1 d	0.0594129	0.0001863	0.0415694
EARTH	2116-05-10 02:41	> 1 d	0.1515602	0.1000782	0.0282414

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
347.60323196	334.47516078	0.00131677	MINIMUM
164.51173748	152.08284750	0.08193023	MINIMUM
79.55441149	68.98870200	0.15426638	SADDLE
253.03275487	237.91331233	0.16024164	SADDLE
357.26655548	164.41762642	1.99898633	SADDLE
173.55927621	340.69372425	2.08052092	MAXIMUM

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MOID Plots

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