Asteroids

454101 2013BP73 help

Last update: 2025-09-10 00:30 UTC

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.493

Aphelion (Q)

2.164

Eccentricity (e)

0.629

Inclination (i)

6.8

deg

Orbit period (P)

559.2

Earth MOID

0.00205

U parameter

0.5

Next Earth close approach

Date

2026-05-04

Nominal distance (from Earth center)

0.07285

10898469

Maximum Brightness

18.2

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

20.4

mag

Diameter

220 - 500*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2013-01-22

Observatory

Mt. Lemmon 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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.328428

1-sigma variation

1.010E-8

Unit

Eccentricity (e)

Value

0.628911

1-sigma variation

1.311E-7

Unit

Inclination (i)

Value

6.8493

1-sigma variation

8.639E-6

Unit

Long. of Ascending Node (Ω)

Value

80.0202

1-sigma variation

3.988E-5

Unit

Arg. of Perihelion (ω)

Value

251.8921

1-sigma variation

3.970E-5

Unit

Mean Anomaly (M)

Value

220.84417

1-sigma variation

0.00003

Unit

Perihelion distance

Value

0.492965

1-sigma variation

Unit

Aphelion distance

Value

2.163890

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.013061

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.345083

1-sigma variation

Unit

MOID

Value

0.002048

1-sigma variation

Unit

Orbit Period

Value

559.2491

1-sigma variation

Unit

U parameter

Value

0.5

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.01923E-16	1.16686E-15	-1.17337E-14	-5.02766E-14	-7.39531E-14	-2.45751E-13
e	1.16686E-15	1.71896E-14	-1.06696E-13	-2.98725E-13	-1.12645E-12	-3.14292E-12
i	-1.17337E-14	-1.06696E-13	7.46279E-11	1.34211E-10	-1.16913E-10	2.46551E-11
Ω	-5.02766E-14	-2.98725E-13	1.34211E-10	1.59007E-9	-1.47604E-9	7.63258E-11
ω	-7.39531E-14	-1.12645E-12	-1.16913E-10	-1.47604E-9	1.57624E-9	1.86939E-10
M	-2.45751E-13	-3.14292E-12	2.46551E-11	7.63258E-11	1.86939E-10	6.59000E-10

Date of computation: 2025-09-10 00:30 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

20.383

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

220 - 500*

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

5760

Unit

Source

[1]

Unobserved

Value

2462

Unit

Source

[1]

Normalized RMS of residuals

Value

0.612985

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2003-04-01.338057

Unit

Source

[2]

Last Observation

Value

2019-01-07.37952

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

128 (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 454101 2013BP73 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	1952-12-07 06:56	< 1 min	0.0639805	0.0639429	0.0000125
EARTH	1960-05-06 21:47	< 1 min	0.0936680	0.0936583	0.0000032
EARTH	1972-12-11 10:01	< 1 min	0.0262896	0.0262582	0.0000104
EARTH	1980-05-12 01:43	< 1 min	0.1691798	0.1691546	0.0000084
VENUS	1980-06-05 00:49	< 1 min	0.0438277	0.0437968	0.0000103
VENUS	1983-07-03 20:42	1.1	0.0383872	0.0383425	0.0000149
VENUS	1986-07-30 17:58	< 1 min	0.0497323	0.0496949	0.0000125
EARTH	1992-12-10 02:36	< 1 min	0.0132537	0.0132482	0.0000018
EARTH	2000-04-26 19:48	< 1 min	0.1726386	0.1726364	0.0000007
EARTH	2018-12-17 03:14	< 1 s	0.1317693	0.1317690	0.0000001
EARTH	2026-05-04 05:15	< 1 min	0.0728518	0.0728510	0.0000003
VENUS	2031-02-26 12:39	< 1 min	0.0227544	0.0227541	0.0000001
EARTH	2041-12-09 04:37	< 1 min	0.0472590	0.0472396	0.0000065
EARTH	2052-05-12 19:15	< 1 min	0.1757434	0.1757298	0.0000045
VENUS	2055-06-29 09:42	< 1 min	0.0293177	0.0293049	0.0000043
EARTH	2067-12-16 10:42	< 1 min	0.1027234	0.1026912	0.0000107
EARTH	2075-05-03 10:36	1.1	0.0821527	0.0821285	0.0000081
EARTH	2090-12-05 20:33	1.7	0.1357388	0.1356528	0.0000287
VENUS	2096-12-26 20:18	2.4	0.0483935	0.0483032	0.0000301
VENUS	2100-01-19 14:03	2.3	0.0473723	0.0473065	0.0000220
EARTH	2101-05-11 20:52	1.1	0.1329213	0.1328821	0.0000131
EARTH	2116-12-15 07:04	2.5	0.0623643	0.0622440	0.0000401
EARTH	2124-05-03 21:42	3.0	0.0834365	0.0833610	0.0000252

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
65.73461834	337.13468649	0.00206392	MINIMUM
293.38771648	121.07431695	0.07138554	MINIMUM
358.83785005	228.55596547	0.52349038	SADDLE
179.85581949	49.16207635	1.18631971	SADDLE
358.49777772	47.79176813	1.48023240	SADDLE
179.49413110	228.98225595	3.17000149	MAXIMUM

Download:

MOID Plots

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