Asteroids

173561 2000YV137 help

Last update: 2026-05-23 13:00 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.998

Aphelion (Q)

1.898

Eccentricity (e)

0.311

Inclination (i)

28.0

deg

Orbit period (P)

636.4

Earth MOID

0.01871

U parameter

0.0

Next Earth close approach

Date

2026-08-09

Nominal distance (from Earth center)

0.03356

5020875

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

18.3

mag

Diameter

520

Taxonomic type

Rotation period (T)

2.722

Discovery Information

Discovery Date

2000-12-31

Observatory

Haleakala-AMOS

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

1.448028

1-sigma variation

3.399E-9

Unit

Eccentricity (e)

Value

0.311077

1-sigma variation

2.393E-8

Unit

Inclination (i)

Value

28.0019

1-sigma variation

4.593E-6

Unit

Long. of Ascending Node (Ω)

Value

137.2171

1-sigma variation

5.500E-6

Unit

Arg. of Perihelion (ω)

Value

211.3690

1-sigma variation

7.418E-6

Unit

Mean Anomaly (M)

Value

309.70891

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.997579

1-sigma variation

Unit

Aphelion distance

Value

1.898476

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.794845

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.019318

1-sigma variation

Unit

MOID

Value

0.018714

1-sigma variation

Unit

Orbit Period

Value

636.4491

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.15515E-17	-8.52634E-18	-1.81080E-16	7.38123E-16	-2.26344E-15	-1.74200E-14
e	-8.52634E-18	5.72714E-16	-1.52107E-14	-7.88595E-15	-2.45483E-14	8.33385E-14
i	-1.81080E-16	-1.52107E-14	2.10963E-11	-5.22865E-12	1.59771E-11	-1.46318E-11
Ω	7.38123E-16	-7.88595E-15	-5.22865E-12	3.02480E-11	-2.14018E-11	-8.18868E-12
ω	-2.26344E-15	-2.45483E-14	1.59771E-11	-2.14018E-11	5.50229E-11	-3.17844E-11
M	-1.74200E-14	8.33385E-14	-1.46318E-11	-8.18868E-12	-3.17844E-11	7.60586E-11

Date of computation: 2026-05-23 13:00 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

2.722

Unit

Source

[1]

Quality

Value

Unit

Source

[-]

Amplitude

Value

0.26

Unit

mag

Source

[1]

Rotation Direction

Value

Unit

Source

[-]

Spinvector L

Value

276

Unit

Source

[1]

Spinvector B

Value

Unit

Source

[1]

Taxonomy
Taxonomy (all)

Taxonomy

Value

Unit

Source

Taxonomy

Value

Unit

Source

[2]

Taxonomy (all)

Value

Unit

Source

[3]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

18.32

Unit

mag

Source

[4]

Slope Parameter (G)

Value

0.15**

Unit

Source

[4]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.297

Unit

Source

[5]

Diameter

Value

520

Unit

Source

[5]

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.) Near-Earth Asteroid Lightcurve Analysis at the Center for Solar System Studies: 2019 July-September, B.D. Warner
[2]	EARN	1.) Alexey V. Sergeyev and Benoit Carry A&A, 652 (2021) A59
[3]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[4]	ESA Aegis	ESA orbit determination and impact monitoring system
[5]	EARN	1.) Joseph R. Masiero et al 2021 Planet. Sci. J. 2 162

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

9304

Unit

Source

[1]

Unobserved

Value

Unit

Source

[1]

Normalized RMS of residuals

Value

0.553822

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2000-12-01.51376

Unit

Source

[2]

Last Observation

Value

2026-05-23.048426

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

759 (11)

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

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 173561 2000YV137 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	1965-08-16 21:17	< 1 min	0.1224282	0.1224240	0.0000014
EARTH	1972-08-09 05:09	< 1 min	0.0250117	0.0250100	0.0000006
EARTH	2019-08-19 16:37	< 1 s	0.1616505	0.1616502	0.0000001
EARTH	2026-08-09 05:11	< 1 min	0.0335625	0.0335620	0.0000002
EARTH	2066-08-16 18:19	< 1 min	0.1126701	0.1126687	0.0000005
EARTH	2073-08-04 10:21	< 1 min	0.1174120	0.1174106	0.0000005
EARTH	2113-08-13 04:22	< 1 min	0.0353335	0.0353330	0.0000002
EARTH	2120-08-02 21:41	< 1 s	0.1624756	0.1624750	0.0000002

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
337.40037437	213.81380507	0.01871364	MINIMUM
201.13637290	75.49545506	0.99259986	SADDLE
7.64138983	72.14505464	1.97106940	SADDLE
173.28494194	236.13591547	2.89005580	MAXIMUM

Download:

MOID Plots

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