Asteroids

2015XH379 help

Last update: 2024-04-25 12:45 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Apollo

Perihelion (q)

1.010

Aphelion (Q)

1.892

Eccentricity (e)

0.304

Inclination (i)

11.4

deg

Orbit period (P)

638.5

Earth MOID

0.02852

U parameter

8.7

Next Earth close approach

Date

2029-12-07

Nominal distance (from Earth center)

0.08028

12010141

Maximum Brightness

21.9

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

24.9

mag

Diameter

28 - 60*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2015-12-08

Observatory

Pan-STARRS 1, Haleakala

Orbit Visualiser

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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

60400.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.451190

1-sigma variation

0.002983

Unit

Eccentricity (e)

Value

0.303688

1-sigma variation

0.001098

Unit

Inclination (i)

Value

11.4088

1-sigma variation

0.0904

Unit

Long. of Ascending Node (Ω)

Value

86.3478

1-sigma variation

0.0505

Unit

Arg. of Perihelion (ω)

Value

353.2715

1-sigma variation

0.5351

Unit

Mean Anomaly (M)

Value

268.62706

1-sigma variation

7.94119

Unit

Perihelion distance

Value

1.010481

1-sigma variation

Unit

Aphelion distance

Value

1.891899

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.028842

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.870237

1-sigma variation

Unit

MOID

Value

0.028518

1-sigma variation

Unit

Orbit Period

Value

638.5355

1-sigma variation

Unit

U parameter

Value

8.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.90028E-6	3.27558E-6	2.69548E-4	-1.50734E-4	1.59635E-3	-2.36912E-2
e	3.27558E-6	1.20551E-6	9.92007E-5	-5.54752E-5	5.87504E-4	-8.71909E-3
i	2.69548E-4	9.92007E-5	8.16418E-3	-4.56481E-3	4.83466E-2	-7.17497E-1
Ω	-1.50734E-4	-5.54752E-5	-4.56481E-3	2.55289E-3	-2.70354E-2	4.01232E-1
ω	1.59635E-3	5.87504E-4	4.83466E-2	-2.70354E-2	2.86320E-1	-4.24924E0
M	-2.36912E-2	-8.71909E-3	-7.17497E-1	4.01232E-1	-4.24924E0	6.30625E1

Date of computation: 2024-04-23 10:08 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

24.899

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

28 - 60*

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 ODIM	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

3055

Unit

Source

[1]

Normalized RMS of residuals

Value

0.508041

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2015-12-08.598119

Unit

Source

[2]

Last Observation

Value

2015-12-14.493944

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

12 (2)

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

[3]

Last Observation

Value

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[1]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA ODIM	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 2015XH379 from 1950 to 2124

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	2008-11-25 12:09	> 1 w	0.1656982	0.0215492	0.2027945
EARTH	2015-12-08 11:43	1.6	0.0769494	0.0756300	0.0004398
EARTH	2022-12-13 04:35	> 1 w	0.0441405	0.0253034	0.1597795
EARTH	2029-12-07 12:01	> 1 mo	0.0802828	0.0148766	0.3182428
EARTH	2036-11-24 23:44	> 1 w	0.1707750	0.0230018	0.2873860
EARTH	2098-01-05 14:52	> 1 mo	0.1869637	0.0107678	0.5752198
EARTH	2104-12-27 11:35	> 1 mo	0.0850988	0.0163486	0.5233468
EARTH	2111-12-22 11:10	> 1 w	0.0399978	0.0259728	0.1583188
EARTH	2118-12-26 13:15	> 1 w	0.0718147	0.0196755	0.1380160

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