Asteroids

2016GP220 help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Apollo

Perihelion (q)

0.967

Aphelion (Q)

4.864

Eccentricity (e)

0.668

Inclination (i)

16.4

deg

Orbit period (P)

1818.7

Earth MOID

0.06633

U parameter

0.0

Next Earth close approach

Date

2026-05-23

Nominal distance (from Earth center)

0.15311

22905320

Maximum Brightness

20.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

400

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2016-04-11

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

2.915864

1-sigma variation

2.912E-8

Unit

Eccentricity (e)

Value

0.668262

1-sigma variation

5.428E-8

Unit

Inclination (i)

Value

16.4450

1-sigma variation

2.942E-5

Unit

Long. of Ascending Node (Ω)

Value

37.2193

1-sigma variation

2.702E-5

Unit

Arg. of Perihelion (ω)

Value

227.2896

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

319.27988

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.967304

1-sigma variation

Unit

Aphelion distance

Value

4.864424

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

1.958196

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.102281

1-sigma variation

Unit

MOID

Value

0.066327

1-sigma variation

Unit

Orbit Period

Value

1818.6510

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	8.47797E-16	9.34193E-16	5.99817E-13	-5.01862E-13	1.52781E-12	-3.83531E-13
e	9.34193E-16	2.94610E-15	3.25679E-13	-2.35401E-13	1.77226E-12	-3.42739E-13
i	5.99817E-13	3.25679E-13	8.65498E-10	-7.36952E-10	1.62155E-9	-3.20165E-10
Ω	-5.01862E-13	-2.35401E-13	-7.36952E-10	7.30320E-10	-1.50330E-9	2.79377E-10
ω	1.52781E-12	1.77226E-12	1.62155E-9	-1.50330E-9	3.88257E-9	-7.73472E-10
M	-3.83531E-13	-3.42739E-13	-3.20165E-10	2.79377E-10	-7.73472E-10	1.86236E-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

[-]

Taxonomy (all)

Value

Unit

Source

[-]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

21.951

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.179

Unit

Source

[2]

Diameter

Value

400

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]	EARN	1.) Masiero, J.R. et al. (2018) Astron. J. 156_60(8pp) (Small and Nearby NEOs Observed by NEOWISE During the First Three Years of Survey: Physical Properties)

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

1853

Unit

Source

[1]

Unobserved

Value

1599

Unit

Source

[1]

Normalized RMS of residuals

Value

0.628825

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2016-04-11.30764

Unit

Source

[2]

Last Observation

Value

2021-05-08.36592

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

75 (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 2016GP220 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	2016-05-30 23:48	< 1 min	0.1904921	0.1904902	0.0000006
EARTH	2026-05-23 09:35	< 1 min	0.1531126	0.1531102	0.0000008
EARTH	2031-05-07 00:18	< 1 min	0.0641675	0.0641669	0.0000002
EARTH	2036-04-25 07:44	< 1 min	0.1785873	0.1785805	0.0000023

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
342.76356195	123.56849193	0.06801018	MINIMUM
1.59844178	344.37106594	1.94161970	SADDLE
180.72261366	341.41903903	3.90889780	SADDLE
179.61806742	160.92864858	5.86352069	MAXIMUM

Download:

MOID Plots

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