Asteroids

2017FO128 help

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

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.836

Aphelion (Q)

2.643

Eccentricity (e)

0.519

Inclination (i)

17.1

deg

Orbit period (P)

837.9

Earth MOID

0.00432

U parameter

1.4

Next Earth close approach

Date

2056-03-18

Nominal distance (from Earth center)

0.05066

7579320

Maximum Brightness

18.8

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

22.4

mag

Diameter

90 - 200*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2017-03-30

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

1.739391

1-sigma variation

8.616E-8

Unit

Eccentricity (e)

Value

0.519407

1-sigma variation

3.921E-7

Unit

Inclination (i)

Value

17.1281

1-sigma variation

2.538E-5

Unit

Long. of Ascending Node (Ω)

Value

174.8793

1-sigma variation

2.778E-5

Unit

Arg. of Perihelion (ω)

Value

301.1040

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

212.99360

1-sigma variation

0.00011

Unit

Perihelion distance

Value

0.835938

1-sigma variation

Unit

Aphelion distance

Value

2.642843

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.006540

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.731396

1-sigma variation

Unit

MOID

Value

0.004315

1-sigma variation

Unit

Orbit Period

Value

837.9037

1-sigma variation

Unit

U parameter

Value

1.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	7.42273E-15	-3.37231E-14	-1.84096E-12	-1.58734E-12	9.23993E-12	-9.38391E-12
e	-3.37231E-14	1.53711E-13	8.36781E-12	7.27940E-12	-4.20550E-11	4.26096E-11
i	-1.84096E-12	8.36781E-12	6.44218E-10	6.30030E-10	-2.57050E-9	2.35592E-9
Ω	-1.58734E-12	7.27940E-12	6.30030E-10	7.71460E-10	-2.37880E-9	2.00360E-9
ω	9.23993E-12	-4.20550E-11	-2.57050E-9	-2.37880E-9	1.19878E-8	-1.17299E-8
M	-9.38391E-12	4.26096E-11	2.35592E-9	2.00360E-9	-1.17299E-8	1.18901E-8

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

22.416

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

90 - 200*

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

2366

Unit

Source

[1]

Unobserved

Value

605

Unit

Source

[1]

Normalized RMS of residuals

Value

0.527583

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2017-03-23.13445

Unit

Source

[2]

Last Observation

Value

2023-09-14.610534

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

110 (0)

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 2017FO128 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	1962-03-07 19:28	2.9	0.0866038	0.0865429	0.0000203
EARTH	2017-03-20 06:17	< 1 min	0.0771494	0.0771489	0.0000001
EARTH	2056-03-18 11:24	1.7	0.0506646	0.0506113	0.0000178
EARTH	2079-03-01 02:04	6.9	0.1412935	0.1411841	0.0000365
EARTH	2118-03-19 03:35	9.5	0.0403031	0.0400213	0.0000939

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
34.80375043	71.15088999	0.00431523	MINIMUM
317.82361895	304.34821393	0.25392892	MINIMUM
346.33656683	350.21283447	0.29826620	SADDLE
177.89711986	193.78852246	1.68014876	SADDLE
358.41871050	191.79287457	1.83648336	SADDLE
181.19022749	15.68784176	3.60398571	MAXIMUM

Download:

MOID Plots

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