Asteroids

2017BS32 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.633

Aphelion (Q)

1.279

Eccentricity (e)

0.338

Inclination (i)

8.8

deg

Orbit period (P)

341.4

Earth MOID

0.00062

U parameter

5.7

Next Earth close approach

Date

2031-02-01

Nominal distance (from Earth center)

0.13136

19651619

Maximum Brightness

25.3

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.4

mag

Diameter

9 - 19*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2017-01-30

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

61000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.955940

1-sigma variation

0.000014

Unit

Eccentricity (e)

Value

0.337753

1-sigma variation

0.000034

Unit

Inclination (i)

Value

8.8243

1-sigma variation

0.0009

Unit

Long. of Ascending Node (Ω)

Value

313.5061

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

294.9865

1-sigma variation

0.0010

Unit

Mean Anomaly (M)

Value

71.95199

1-sigma variation

0.04276

Unit

Perihelion distance

Value

0.633069

1-sigma variation

Unit

Aphelion distance

Value

1.278811

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.274218

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.001618

1-sigma variation

Unit

MOID

Value

0.000624

1-sigma variation

Unit

Orbit Period

Value

341.3850

1-sigma variation

Unit

U parameter

Value

5.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.05435E-10	4.91304E-10	1.30342E-8	2.74127E-9	1.46573E-8	-6.12874E-7
e	4.91304E-10	1.17915E-9	3.13739E-8	6.55552E-9	3.52284E-8	-1.46585E-6
i	1.30342E-8	3.13739E-8	8.36921E-7	1.73911E-7	9.38432E-7	-3.88919E-5
Ω	2.74127E-9	6.55552E-9	1.73911E-7	3.65792E-8	1.95570E-7	-8.17801E-6
ω	1.46573E-8	3.52284E-8	9.38432E-7	1.95570E-7	1.05308E-6	-4.37331E-5
M	-6.12874E-7	-1.46585E-6	-3.88919E-5	-8.17801E-6	-4.37331E-5	1.82839E-3

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

[-]

Taxonomy (all)

Value

Unit

Source

[-]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

27.434

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

9 - 19*

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

[-]

Download this part as:

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

3162

Unit

Source

[1]

Normalized RMS of residuals

Value

0.727231

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2017-01-27.31758

Unit

Source

[2]

Last Observation

Value

2017-02-02.57851

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

92 (17)

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 2017BS32 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	1950-02-03 11:39	30.3	0.0682054	0.0620881	0.0020391
EARTH	1958-09-27 19:11	29.4	0.1365746	0.1362861	0.0000968
EARTH	1961-02-03 03:57	2.2	0.0629734	0.0626974	0.0000920
EARTH	1969-09-27 04:55	121.6	0.1350141	0.1338177	0.0004351
EARTH	1972-02-03 22:52	23.4	0.0610816	0.0546238	0.0021526
EARTH	1980-09-28 10:53	179.9	0.1452016	0.1419324	0.0011527
EARTH	1983-02-02 19:28	155.3	0.1006866	0.0929594	0.0025759
EARTH	1991-10-02 20:23	151.5	0.1890013	0.1837675	0.0017694
EARTH	1994-01-24 18:47	513.1	0.1785222	0.1731534	0.0017904
VENUS	1998-12-29 15:41	196.2	0.0441512	0.0400145	0.0014327
VENUS	2000-10-29 21:08	176.0	0.0282989	0.0274545	0.0003574
EARTH	2006-01-30 13:21	38.6	0.1308723	0.1284029	0.0008231
EARTH	2014-09-22 04:19	26.4	0.1396439	0.1393148	0.0001105
EARTH	2017-02-02 20:23	< 1 s	0.0010885	0.0010882	0.0000001
VENUS	2022-12-21 15:20	40.4	0.0224017	0.0222034	0.0000699
EARTH	2031-02-01 05:40	150.1	0.1313630	0.1273458	0.0013391
EARTH	2042-09-20 04:55	193.3	0.1262782	0.1236759	0.0009275
EARTH	2046-01-30 08:12	137.3	0.1267187	0.1180760	0.0028809
EARTH	2056-09-25 05:11	77.2	0.1261198	0.1248443	0.0004371
EARTH	2060-02-03 01:33	14.4	0.0231047	0.0213928	0.0005706
EARTH	2070-09-25 03:09	307.4	0.1202508	0.1179060	0.0010570
VENUS	2073-05-30 15:00	1225.0	0.0372341	0.0252145	0.0052632
EARTH	2074-01-31 06:17	277.5	0.0989512	0.0799308	0.0063402
EARTH	2084-09-17 12:28	457.4	0.1473522	0.1388853	0.0029924
EARTH	2087-01-23 12:38	1126.5	0.1881261	0.1778148	0.0034407
EARTH	2101-02-04 05:12	33.2	0.0759146	0.0735959	0.0007730
EARTH	2111-09-29 07:22	139.3	0.1449560	0.1413264	0.0012391
EARTH	2115-02-03 13:58	127.2	0.0356303	0.0266083	0.0030097
EARTH	2125-09-20 04:20	160.8	0.1402137	0.1364875	0.0012796

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
264.62093078	31.04001181	0.00066243	MINIMUM
91.77947137	258.27383284	0.11567372	MINIMUM
176.67509371	324.58287925	0.33240214	SADDLE
358.81308289	143.92752098	0.39654112	SADDLE
1.26615482	327.54121899	1.61562733	SADDLE
181.76550576	148.16500616	2.28708546	MAXIMUM

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MOID Plots

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