Asteroids

86039 1999NC43 help

Last update: 2024-05-06 23:53 UTC

Orbital Properties

Epoch

60400.0

MJD

Orbit type

Apollo

Perihelion (q)

0.741

Aphelion (Q)

2.779

Eccentricity (e)

0.579

Inclination (i)

7.1

deg

Orbit period (P)

852.8

Earth MOID

0.02457

U parameter

0.0

Next Earth close approach

Date

2109-09-14

Nominal distance (from Earth center)

0.15964

23882161

Maximum Brightness

14.8

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

2200

Taxonomic type

Rotation period (T)

34.10

Discovery Information

Discovery Date

1999-07-14

Observatory

Lincoln Laboratory ETS, New Mexico

Orbit Visualiser

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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

60400.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.759961

1-sigma variation

1.822E-9

Unit

Eccentricity (e)

Value

0.578825

1-sigma variation

3.363E-8

Unit

Inclination (i)

Value

7.1315

1-sigma variation

4.970E-6

Unit

Long. of Ascending Node (Ω)

Value

311.6337

1-sigma variation

2.782E-5

Unit

Arg. of Perihelion (ω)

Value

120.7882

1-sigma variation

2.762E-5

Unit

Mean Anomaly (M)

Value

132.94495

1-sigma variation

4.216E-6

Unit

Perihelion distance

Value

0.741251

1-sigma variation

Unit

Aphelion distance

Value

2.778671

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.648191

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.081870

1-sigma variation

Unit

MOID

Value

0.024570

1-sigma variation

Unit

Orbit Period

Value

852.8115

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	3.31903E-18	9.09977E-19	4.97670E-17	2.14816E-15	-1.40943E-15	-4.99964E-15
e	9.09977E-19	1.13107E-15	-1.15033E-14	1.37413E-13	-1.03478E-13	-4.91660E-14
i	4.97670E-17	-1.15033E-14	2.46980E-11	3.88907E-11	-4.05214E-11	7.51094E-13
Ω	2.14816E-15	1.37413E-13	3.88907E-11	7.74035E-10	-7.54238E-10	-6.50175E-12
ω	-1.40943E-15	-1.03478E-13	-4.05214E-11	-7.54238E-10	7.62593E-10	-6.12173E-12
M	-4.99964E-15	-4.91660E-14	7.51094E-13	-6.50175E-12	-6.12173E-12	1.77777E-11

Date of computation: 2024-04-23 10:08 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

34.10

Unit

Source

[5]

Quality

Value

2,A

Unit

Source

[5]

Amplitude

Value

0.75-1.1

Unit

mag

Source

[5]

Rotation Direction

Value

Unit

Source

[-]

Spinvector L

Value

Unit

Source

[-]

Spinvector B

Value

Unit

Source

[-]

Taxonomy
Taxonomy (all)

Taxonomy

Value

Unit

Source

Taxonomy

Value

Scomp

Unit

Source

[1]

[2]

Taxonomy (all)

Value

Q;Scomp

Unit

Source

[3]

[4]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

15.953

Unit

mag

Source

[6]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[6]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.14

Unit

Source

[7]

Diameter

Value

2200

Unit

Source

[7]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

Unit

mag

Source

[-]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Visual S

Unit

Source

[8]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) Alexey V. Sergeyev and Benoit Carry A&A, 652 (2021) A59
[2]	EARN	1.) DeMeo, F.E. et al. (2014) Icarus 227, 112-122. (Mars encounters cause fresh surfaces on some near-Earth asteroids) (contains taxonomic classification of 249 NEAs)
[3]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[4]	EARN	1.) Binzel, R.P. et al. (2004) Icarus 170, 259-294. (Observed spectral properties of near-Earth objects: results for population distribution, source regions, and space weathering processes.) 2.) Whiteley, R.J. (2001) PhD. Thesis, University of Hawaii. (A Compositional and Dynamical Survey of the Near-Earth Asteroids) 3.) DeMeo, F.E. et al. (2014) Icarus 227, 112-122. (Mars encounters cause fresh surfaces on some near-Earth asteroids) (contains taxonomic classification of 249 NEAs)
[5]	EARN	1.) Warner, B.D. (2014) MPB 41, 213-224. (NEAR-EARTH ASTEROID LIGHTCURVE ANALYSIS AT CS3-PALMER DIVIDE STATION: 2014 MARCH-JUNE) (38 NEA lightcurve data) 2.) Petr Pravec's Ondrejov NEO Photometric Program Webpage "Prepublished Periods" 3.) Delbo, M. et al. (2003) Icarus 166, 116-130. (Keck observations of near-Earth asteroids in the thermal infrared) 4.) Warner, B.D. et al. (2014) MPB 41, 157-168. (NEAR-EARTH ASTEROID LIGHTCURVE ANALYSIS AT CS3-PALMER DIVIDE STATION: 2014 JANUARY-MARCH) (1943,4055,4954,25916,35107,40267,53435, 68031,85990,86039,138127,143409,243566,275677,277570,294739, 357622,377097,1995CR,2006DP14,2009CT,2009QF31,2011BT15, 2012AU10,2013XV8,2013YZ13,2013PD21,2013XF22,2013YZ37, 2013WT44,2014CR,2014EM,2014BR8,2014CG13,2014CU13,2014EY24, 2014AY28,2014EL45,2014BR57,2014DX110)
[6]	ESA ODIM	ESA orbit determination and impact monitoring system
[7]	EARN	1.) Delbo, M. et al. (2011) Icarus 212, 138-148. (The cool surfaces of binary near-Earth asteroids) (5381,153591, 164121) 2.) Usui, F. et al. (2011) Pub. Astron. Soc. Japan 63, 1117-1138. (Asteroid Catalog Using AKARI: AKARI/IRC Mid-Infrared Asteroid Survey)
[8]	EARN	1.) Binzel, R.P. et al. (2006) LPSC 37, 1491. (The MIT-Hawaii-IRTF joint campaign for NEO spectral reconnaissance.) 2.) Binzel, R.P. et al. href="http://smass.mit.edu/minus.html"> Webpage 3.) deLeon, J. et al. (2010) Astron. Astrophys 517, A23. (Observations, compositional, and physical characterization of near-Earth and Mars-crosser asteroids from a spectroscopic survey)

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

8034

Unit

Source

[1]

Unobserved

Value

1063

Unit

Source

[1]

Normalized RMS of residuals

Value

0.480726

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

1999-06-11.38764

Unit

Source

[2]

Last Observation

Value

2021-06-09.281147

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

1601 (9)

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 86039 1999NC43 from 1950 to 2124

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possibile distance in au	Distance uncert. in au
EARTH	2109-09-14 07:16	< 1 s	0.1596424	0.1596419	0.0000002
EARTH	2116-09-18 05:36	< 1 min	0.1123353	0.1123349	0.0000001
EARTH	2123-09-23 20:29	< 1 min	0.0963436	0.0963434	0.0000001

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