Asteroids

2005FN help

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

Orbital Properties

Epoch

61000.0

MJD

Orbit type

Aten

Perihelion (q)

0.625

Aphelion (Q)

1.241

Eccentricity (e)

0.330

Inclination (i)

3.8

deg

Orbit period (P)

329.3

Earth MOID

0.00087

U parameter

5.7

Next Earth close approach

Date

2030-11-19

Nominal distance (from Earth center)

0.10717

16032972

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

27.3

mag

Diameter

9 - 21*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2005-03-17

Observatory

Lincoln Laboratory ETS, New Mexico

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

0.933245

1-sigma variation

0.000006

Unit

Eccentricity (e)

Value

0.330113

1-sigma variation

0.000075

Unit

Inclination (i)

Value

3.7512

1-sigma variation

0.0018

Unit

Long. of Ascending Node (Ω)

Value

177.2395

1-sigma variation

0.0023

Unit

Arg. of Perihelion (ω)

Value

120.8954

1-sigma variation

0.0021

Unit

Mean Anomaly (M)

Value

253.29213

1-sigma variation

0.16374

Unit

Perihelion distance

Value

0.625169

1-sigma variation

Unit

Aphelion distance

Value

1.241321

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.004870

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.293739

1-sigma variation

Unit

MOID

Value

0.000871

1-sigma variation

Unit

Orbit Period

Value

329.3002

1-sigma variation

Unit

U parameter

Value

5.7

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.07034E-11	-4.67502E-10	-1.16282E-8	1.46467E-8	-1.31023E-8	1.04433E-6
e	-4.67502E-10	5.67402E-9	1.36620E-7	-1.67307E-7	1.56387E-7	-1.20673E-5
i	-1.16282E-8	1.36620E-7	3.36548E-6	-4.17345E-6	3.80210E-6	-2.99086E-4
Ω	1.46467E-8	-1.67307E-7	-4.17345E-6	5.27344E-6	-4.69698E-6	3.75570E-4
ω	-1.31023E-8	1.56387E-7	3.80210E-6	-4.69698E-6	4.33206E-6	-3.37573E-4
M	1.04433E-6	-1.20673E-5	-2.99086E-4	3.75570E-4	-3.37573E-4	2.68117E-2

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

27.264

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

9 - 21*

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

[-]

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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

Unit

Source

[1]

Unobserved

Value

7539

Unit

Source

[1]

Normalized RMS of residuals

Value

0.191148

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2005-03-17.44032

Unit

Source

[2]

Last Observation

Value

2005-03-18.48372

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

185 (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 2005FN 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	1954-03-18 16:50	218.6	0.0178800	0.0001782	0.0068872
EARTH	1967-03-18 10:58	174.6	0.0427615	0.0289429	0.0046062
EARTH	1976-11-15 09:35	252.6	0.1459295	0.1322707	0.0046095
EARTH	1980-03-14 16:13	210.3	0.1416789	0.1280744	0.0045348
EARTH	1989-11-11 21:58	136.6	0.0670149	0.0644322	0.0010646
EARTH	1992-03-04 06:11	875.0	0.1769415	0.1714364	0.0018355
VENUS	1998-11-08 07:25	147.3	0.0414966	0.0391529	0.0008388
VENUS	2000-09-15 10:36	132.5	0.0386605	0.0374548	0.0004265
EARTH	2002-11-16 23:35	148.5	0.1574641	0.1556455	0.0006067
EARTH	2005-03-18 21:42	< 1 min	0.0009626	0.0009616	0.0000003
VENUS	2006-03-27 08:37	9.3	0.0292577	0.0288255	0.0001458
EARTH	2014-03-18 01:11	164.2	0.0814513	0.0749382	0.0021711
EARTH	2021-12-05 13:59	971.9	0.1834778	0.1785976	0.0016291
EARTH	2023-03-03 20:16	940.0	0.1703759	0.1645532	0.0019413
EARTH	2030-11-19 09:38	159.8	0.1071738	0.1024110	0.0016017
EARTH	2039-11-19 06:07	3.7	0.0609225	0.0606355	0.0000976
EARTH	2042-03-14 01:57	40.5	0.1835201	0.1815173	0.0006676
VENUS	2043-05-20 20:35	106.3	0.0451512	0.0425473	0.0009129
EARTH	2048-11-24 01:18	116.7	0.1979467	0.1907677	0.0023973
EARTH	2051-03-19 13:38	65.8	0.0096720	0.0023884	0.0026030
EARTH	2057-11-24 07:29	> 1 d	0.1721621	0.0592206	0.0451168
EARTH	2060-03-16 07:22	> 1 d	0.1097916	0.0020302	0.0557977
EARTH	2066-11-20 07:57	> 1 d	0.0620129	0.0560223	0.0289464
EARTH	2075-11-20 16:56	> 1 d	0.1008193	0.0558314	0.0595656
EARTH	2084-12-03 09:36	> 1 w	0.1723725	0.1094651	0.0217070
EARTH	2086-03-05 07:04	> 1 d	0.1651578	0.1267723	0.0128469
VENUS	2090-02-19 17:16	1074.4	0.0352972	0.0339403	0.0030331
EARTH	2095-03-13 06:50	> 1 w	0.1301797	0.0074464	0.0449470
EARTH	2104-03-13 23:59	> 1 w	0.1289495	0.0085461	0.0847420
EARTH	2111-12-12 01:46	> 1 w	0.1963540	0.0740225	0.0446512
EARTH	2113-03-09 19:50	> 1 w	0.1509281	0.0132301	0.0580583
EARTH	2120-12-07 09:36	> 1 d	0.1835127	0.1472606	0.0122247
EARTH	2122-03-07 00:40	> 1 d	0.1630489	0.1509853	0.0040220

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
258.25551141	74.97887276	0.00102962	MINIMUM
99.09004999	314.15326001	0.05534055	MINIMUM
178.32486335	14.56408933	0.26452447	SADDLE
358.19244869	193.75378300	0.39319560	SADDLE
358.75685639	14.55859355	1.60877368	SADDLE
179.55529424	195.42112941	2.25607948	MAXIMUM

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MOID Plots

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