Asteroids

2015DC54 help

Last update: 2025-05-05 11:31 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.984

Aphelion (Q)

2.841

Eccentricity (e)

0.485

Inclination (i)

4.7

deg

Orbit period (P)

966.0

Earth MOID

0.00877

U parameter

8.0

Next Earth close approach

Date

2052-03-11

Nominal distance (from Earth center)

0.18002

26931277

Maximum Brightness

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

26.2

mag

Diameter

15 - 30*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2015-02-19

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.912368

1-sigma variation

0.002058

Unit

Eccentricity (e)

Value

0.485357

1-sigma variation

0.000545

Unit

Inclination (i)

Value

4.7005

1-sigma variation

0.0046

Unit

Long. of Ascending Node (Ω)

Value

144.8707

1-sigma variation

0.0005

Unit

Arg. of Perihelion (ω)

Value

341.9785

1-sigma variation

0.0008

Unit

Mean Anomaly (M)

Value

315.99247

1-sigma variation

2.39528

Unit

Perihelion distance

Value

0.984187

1-sigma variation

Unit

Aphelion distance

Value

2.840549

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.012320

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.703598

1-sigma variation

Unit

MOID

Value

0.008767

1-sigma variation

Unit

Orbit Period

Value

965.9523

1-sigma variation

Unit

U parameter

Value

8.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.23594E-6	1.12110E-6	9.55470E-6	-9.37411E-7	-7.56991E-7	-4.92983E-3
e	1.12110E-6	2.96716E-7	2.52884E-6	-2.47928E-7	-2.00994E-7	-1.30475E-3
i	9.55470E-6	2.52884E-6	2.15566E-5	-2.10149E-6	-1.75268E-6	-1.11199E-2
Ω	-9.37411E-7	-2.47928E-7	-2.10149E-6	2.46570E-7	2.80325E-8	1.09100E-3
ω	-7.56991E-7	-2.00994E-7	-1.75268E-6	2.80325E-8	6.57468E-7	8.80884E-4
M	-4.92983E-3	-1.30475E-3	-1.11199E-2	1.09100E-3	8.80884E-4	5.73739E0

Date of computation: 2025-03-29 00:36 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

26.217

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

15 - 30*

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.) Maxime Devogèle et al 2019 AJ 158 196
[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

Unit

Source

[1]

Unobserved

Value

3722

Unit

Source

[1]

Normalized RMS of residuals

Value

0.54616

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2015-02-19.31531

Unit

Source

[2]

Last Observation

Value

2015-02-25.5393

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

43 (1)

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 2015DC54 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	1965-03-01 05:05	> 1 w	0.0852551	0.0036496	0.1854498
EARTH	1993-12-25 04:22	> 1 w	0.1166285	0.0503604	0.1901088
EARTH	2015-02-15 20:13	< 1 min	0.0159035	0.0158504	0.0000177
EARTH	2052-03-11 12:32	> 1 w	0.1800245	0.0148909	0.3513162
EARTH	2059-12-30 19:12	> 1 mo	0.0938452	0.0449637	0.2668936
EARTH	2097-01-02 15:09	> 1 mo	0.0805862	0.0407849	0.3423355

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
8.23625062	37.99920980	0.00876686	MINIMUM
180.14012774	204.89115784	1.82627039	SADDLE
0.64437465	205.34655787	1.99879036	SADDLE
180.29814094	24.98025550	3.82544589	MAXIMUM

Download:

MOID Plots

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