Asteroids

2018FE3

Last update: 2023-03-30 21:00 UTC

Orbital Properties

Epoch

60000.0

MJD

Orbit type

Aten

Perihelion (q)

0.699

Aphelion (Q)

1.070

Eccentricity (e)

0.209

Inclination (i)

6.9

deg

Orbit period (P)

304.0

Earth MOID

0.00122

U parameter

6.0

Next Earth close approach

Date

2028-04-10

Nominal distance (from Earth center)

0.08926

13353466

Maximum Brightness

124

mag

Risk

Object is in risk list

Object is in priority list

Physical Properties

Absolute Magnitude (H)

27.2

mag

Diameter

13*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2018-03-21

Observatory

Catalina Sky Survey

Orbit Visualiser

Click the button to start Orbit Visualiser

External links

Proper elements

Epoch

Near present day

Near middle of observation arc

Orbit properties

Epoch
Semimajor Axis
Eccentricity (e)
Inclination (i)
Ascending Node (Ω)
Arg. of Perihelion (ω)
Mean Anomaly (M)
Perihelion
Aphelion
Asc. Node-Earth Sep.
Desc. Node-Earth Sep.
MOID
Orbit Period
U parameter

Value

1-sigma variation

Unit

Epoch

Value

60000.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.884842

1-sigma variation

0.000019

Unit

Eccentricity (e)

Value

0.209478

1-sigma variation

0.000051

Unit

Inclination (i)

Value

6.8855

1-sigma variation

0.0020

Unit

Ascending Node (Ω)

Value

176.8594

1-sigma variation

0.0002

Unit

Arg. of Perihelion (ω)

Value

225.0421

1-sigma variation

0.0014

Unit

Mean Anomaly (M)

Value

93.08786

1-sigma variation

0.06344

Unit

Perihelion

Value

0.699487

1-sigma variation

Unit

Aphelion

Value

1.070196

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.002007

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.268495

1-sigma variation

Unit

MOID

Value

0.001215

1-sigma variation

Unit

Orbit Period

Value

304.0164

1-sigma variation

Unit

U parameter

Value

6.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.63083E-10	-9.64241E-10	-3.82134E-8	-2.79006E-9	2.59966E-8	-1.20874E-6
e	-9.64241E-10	2.56124E-9	1.01505E-7	7.33297E-9	-6.89497E-8	3.20998E-6
i	-3.82134E-8	1.01505E-7	4.02278E-6	2.90470E-7	-2.73230E-6	1.27213E-4
Ω	-2.79006E-9	7.33297E-9	2.90470E-7	3.39287E-8	-2.13765E-7	9.30058E-6
ω	2.59966E-8	-6.89497E-8	-2.73230E-6	-2.13765E-7	1.87761E-6	-8.65606E-5
M	-1.20874E-6	3.20998E-6	1.27213E-4	9.30058E-6	-8.65606E-5	4.02405E-3

Date of computation: 2022-11-23 04:56 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

27.202

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

[2]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

Unit

Source

[-]

Diameter

Value

13*

Unit

Source

[3]

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 ODIM	ESA orbit determination and impact monitoring system
[2]	NEODyS	NEO Dynamic Site: https://newton.spacedys.com/neodys2
[3]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

Source

[1]

Unobserved

Value

1813

Unit

Source

[1]

Astrometry Summary

RMS of Residuals
First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

RMS of Residuals

Value

0.545435

Unit

arcsec

Source

[1]

First Observation

Value

2018-03-21.27141

Unit

Source

[2]

Last Observation

Value

2018-04-13.315681

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

60 (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

Unit

Source

[3]

Last Observation

Value

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[1]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA ODIM	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 2018FE3 from 1950 to 2123

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	1954-04-21 14:56	> 1 d	0.1132870	0.0906063	0.0089308
EARTH	1959-04-18 07:08	> 1 d	0.1083990	0.0876913	0.0076489
EARTH	1964-04-17 04:30	> 1 d	0.1081834	0.0967627	0.0039570
EARTH	1969-04-14 09:23	1221.4	0.1033760	0.0991179	0.0014473
EARTH	1974-04-16 23:17	> 1 d	0.1068719	0.0886924	0.0065609
EARTH	1979-05-01 19:21	> 1 d	0.1243908	0.1101555	0.0058503
EARTH	1984-05-20 14:50	> 1 d	0.1374267	0.1307168	0.0045130
EARTH	1989-06-04 19:52	1036.1	0.1584615	0.1412004	0.0084992
VENUS	2004-08-20 06:07	567.1	0.0150994	0.0098894	0.0021193
EARTH	2013-03-17 08:45	28.7	0.1590568	0.1561843	0.0009575
EARTH	2018-03-18 07:11	< 1 min	0.0009779	0.0009769	0.0000003
EARTH	2023-03-21 04:24	169.7	0.0261508	0.0235858	0.0008550
EARTH	2028-04-10 02:60	419.7	0.0892624	0.0880623	0.0004011
EARTH	2028-07-26 23:35	959.0	0.1882209	0.1868317	0.0004677
EARTH	2033-05-15 07:56	1286.7	0.1177495	0.1172517	0.0001955
EARTH	2038-06-12 09:29	85.1	0.1331396	0.1289755	0.0015218
VENUS	2056-12-09 10:58	424.0	0.0221857	0.0207630	0.0005414
EARTH	2057-03-18 06:58	9.9	0.1888776	0.1853602	0.0011725
EARTH	2062-03-16 02:20	21.2	0.0881045	0.0766249	0.0038266
EARTH	2067-03-16 19:43	276.1	0.0207546	0.0062662	0.0048426
VENUS	2071-01-26 21:28	> 1 d	0.0244894	0.0152438	0.0135581
EARTH	2072-03-15 22:07	21.7	0.0545909	0.0004484	0.0183573
EARTH	2077-03-16 05:20	259.4	0.0838690	0.0563038	0.0091888
EARTH	2082-03-17 14:36	10.2	0.1426702	0.1304802	0.0040634
EARTH	2087-03-19 10:46	397.9	0.1906421	0.1509111	0.0132443

Download as:

2018FE3

Date in UTC	MJD	σ	σ_imp	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS	TS
2118-03-17.390	94718.390	-0.772	0.000	0.93 ± 0.019	1.33E5	8.74E-6	4.24E-7	-6.57	0


Based on 60 optical observations (of which 2 are rejected as outliers) from 2018/03/21.271 to 2018/04/13.316.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 2.10 and 2.10 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 4.0, Date of computation=20220731 203644.300 UTC.

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Download Impactor Table as: