Asteroids

2015BP513 help

Last update: 2026-07-30 14:25 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.945

Aphelion (Q)

2.517

Eccentricity (e)

0.454

Inclination (i)

0.5

deg

Orbit period (P)

831.7

Earth MOID

0.00046

U parameter

7.5

Next Earth close approach

Date

2030-10-29

Nominal distance (from Earth center)

0.17669

26432774

Maximum Brightness

25.5

mag

Risk

Object is in risk list

Physical Properties

Absolute Magnitude (H)

26.7

mag

Diameter

12 - 27*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2015-01-27

Observatory

Pan-STARRS 1, Haleakala

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.730794

1-sigma variation

0.000720

Unit

Eccentricity (e)

Value

0.454118

1-sigma variation

0.000241

Unit

Inclination (i)

Value

0.4899

1-sigma variation

0.0002

Unit

Long. of Ascending Node (Ω)

Value

115.5556

1-sigma variation

0.0096

Unit

Arg. of Perihelion (ω)

Value

333.7046

1-sigma variation

0.0122

Unit

Mean Anomaly (M)

Value

10.28721

1-sigma variation

1.15833

Unit

Perihelion distance

Value

0.944809

1-sigma variation

Unit

Aphelion distance

Value

2.516778

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.007931

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.303566

1-sigma variation

Unit

MOID

Value

0.000460

1-sigma variation

Unit

Orbit Period

Value

831.6993

1-sigma variation

Unit

U parameter

Value

7.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.17732E-7	1.73398E-7	1.55162E-7	6.87902E-6	-8.74557E-6	-8.33458E-4
e	1.73398E-7	5.80742E-8	5.19650E-8	2.30385E-6	-2.92902E-6	-2.79140E-4
i	1.55162E-7	5.19650E-8	4.65784E-8	2.06428E-6	-2.62250E-6	-2.49784E-4
Ω	6.87902E-6	2.30385E-6	2.06428E-6	9.15061E-5	-1.16258E-4	-1.10740E-2
ω	-8.74557E-6	-2.92902E-6	-2.62250E-6	-1.16258E-4	1.47763E-4	1.40788E-2
M	-8.33458E-4	-2.79140E-4	-2.49784E-4	-1.10740E-2	1.40788E-2	1.34172E0

Date of computation: 2026-07-30 14:25 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

26.684

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

12 - 27*

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

Unit

Source

[1]

Unobserved

Value

4269

Unit

Source

[1]

Normalized RMS of residuals

Value

0.492144

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2015-01-19.580634

Unit

Source

[2]

Last Observation

Value

2015-01-29.656583

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

15 (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

Filters

Initial Date: *

Final Date: *

Normalised Only accepted

Max residual (arcsec):

* - these fields are required

Plot

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

* - these fields are required

Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2015BP513 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	1960-02-13 16:19	> 1 d	0.1987006	0.0027891	0.0998952
EARTH	1971-12-28 11:17	> 1 mo	0.0359146	0.0097646	0.0178887
EARTH	1983-10-31 16:37	> 1 d	0.1922938	0.0105905	0.1062861
EARTH	2015-01-18 17:08	< 1 min	0.0015991	0.0015966	0.0000008
EARTH	2030-10-29 14:42	> 1 d	0.1766922	0.0078997	0.0632588
EARTH	2055-12-09 10:11	> 1 mo	0.0346682	0.0091124	0.0298562
MARS	2092-02-28 04:38	> 1 w	0.0256771	0.0240898	0.1331038
EARTH	2096-12-23 11:09	> 1 mo	0.0385002	0.0181797	0.0415024

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
18.16206146	13.86615036	0.00046005	MINIMUM
340.87426201	314.78969180	0.00703114	MINIMUM
359.38353345	344.12434995	0.03946576	SADDLE
179.79731398	164.63188049	1.50054009	SADDLE
359.45096343	164.24123880	1.96104041	SADDLE
179.80684664	344.64101056	3.50085803	MAXIMUM

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MOID Plots

Click on the images to zoom-in and zoom-out

Level lines of the squared distance function

2015BP513

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE	IP	Impact energy	PS	TS
2108-11-25.416	91319.416	-0.707	0.000	1.55 ± 0.034	3.31E7	1.73E-8	1.00E-1	-8.96	0


Based on 15 optical observations (of which 0 are rejected as outliers) from 2015/01/19.581 to 2015/01/29.657.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.79 and 1.79 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
AstOD software version= 4.0, Date of computation=20250805 130500.123 UTC.

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