Asteroids

2016LY48 help

Last update: 2025-03-29 00:36 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.939

Aphelion (Q)

3.677

Eccentricity (e)

0.593

Inclination (i)

4.1

deg

Orbit period (P)

1280.7

Earth MOID

0.01152

U parameter

0.0

Next Earth close approach

Date

2030-09-25

Nominal distance (from Earth center)

0.05643

8441346

Maximum Brightness

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

22.9

mag

Diameter

70 - 160*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2016-06-11

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

2.308023

1-sigma variation

1.795E-8

Unit

Eccentricity (e)

Value

0.592992

1-sigma variation

7.027E-9

Unit

Inclination (i)

Value

4.1108

1-sigma variation

2.924E-6

Unit

Long. of Ascending Node (Ω)

Value

165.7010

1-sigma variation

2.603E-5

Unit

Arg. of Perihelion (ω)

Value

155.2865

1-sigma variation

2.511E-5

Unit

Mean Anomaly (M)

Value

174.60286

1-sigma variation

1.809E-6

Unit

Perihelion distance

Value

0.939383

1-sigma variation

Unit

Aphelion distance

Value

3.676663

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

2.252179

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.034593

1-sigma variation

Unit

MOID

Value

0.011525

1-sigma variation

Unit

Orbit Period

Value

1280.7330

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.22158E-16	5.46555E-17	-2.49914E-14	-4.36651E-13	4.18164E-13	-2.89568E-14
e	5.46555E-17	4.93718E-17	-6.34708E-15	-8.00572E-14	6.34337E-14	-2.60361E-15
i	-2.49914E-14	-6.34708E-15	8.54940E-12	4.52003E-11	-4.23665E-11	1.92601E-12
Ω	-4.36651E-13	-8.00572E-14	4.52003E-11	6.77729E-10	-6.47934E-10	3.52973E-11
ω	4.18164E-13	6.34337E-14	-4.23665E-11	-6.47934E-10	6.30360E-10	-3.60437E-11
M	-2.89568E-14	-2.60361E-15	1.92601E-12	3.52973E-11	-3.60437E-11	3.27116E-12

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

[-]

Taxonomy (all)

Value

Unit

Source

[-]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

22.878

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

70 - 160*

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

2688

Unit

Source

[1]

Unobserved

Value

568

Unit

Source

[1]

Normalized RMS of residuals

Value

0.61958

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2016-06-11.33644

Unit

Source

[2]

Last Observation

Value

2023-10-21.456948

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

146 (2)

Unit

Source

[1]

Radar Summary

First Observation
Last Observation
Delay (Discarded)
Doppler (Discarded)
Total Optical Observations (Discarded)

Radar

Value

Unit

Source

First Observation

Value

2023-09-17

Unit

Source

[3]

Last Observation

Value

2023-09-17

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[-]

Doppler (Discarded)

Value

1 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

1 (0)

Unit

Source

[1]

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
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

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 2016LY48 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	2016-07-23 20:31	< 1 min	0.0730324	0.0730323	0.0000000
EARTH	2023-09-16 08:31	< 1 s	0.0128750	0.0128749	0.0000000
EARTH	2030-09-25 16:14	< 1 min	0.0564269	0.0564256	0.0000005
EARTH	2097-06-19 10:04	< 1 min	0.1813789	0.1813758	0.0000010
EARTH	2104-07-28 04:55	< 1 min	0.0699821	0.0699816	0.0000002
EARTH	2111-10-02 20:10	< 1 min	0.1021854	0.1021824	0.0000010

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
17.30486854	253.13594345	0.01152458	MINIMUM
342.33567421	184.72015043	0.06315820	MINIMUM
356.73214219	212.90215644	0.08065973	SADDLE
359.10431302	37.63652669	1.92624560	SADDLE
179.73222314	38.51313038	2.69009980	SADDLE
179.81506548	218.55074963	4.68898000	MAXIMUM

Download:

MOID Plots

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