Asteroids

2002NY40 help

Last update: 2026-08-19 13:30 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.599

Aphelion (Q)

3.502

Eccentricity (e)

0.708

Inclination (i)

5.9

deg

Orbit period (P)

1072.2

Earth MOID

0.00128

U parameter

1.1

Next Earth close approach

Date

2038-02-11

Nominal distance (from Earth center)

0.00729

1090542

Maximum Brightness

10.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

19.2

mag

Diameter

280

Taxonomic type

Rotation period (T)

19.98

Discovery Information

Discovery Date

2002-07-14

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

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

2.050115

1-sigma variation

3.710E-8

Unit

Eccentricity (e)

Value

0.708052

1-sigma variation

5.246E-8

Unit

Inclination (i)

Value

5.8945

1-sigma variation

7.180E-6

Unit

Long. of Ascending Node (Ω)

Value

145.2447

1-sigma variation

4.130E-6

Unit

Arg. of Perihelion (ω)

Value

269.9351

1-sigma variation

1.379E-5

Unit

Mean Anomaly (M)

Value

24.36178

1-sigma variation

0.00012

Unit

Perihelion distance

Value

0.598526

1-sigma variation

Unit

Aphelion distance

Value

3.501705

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.035703

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

0.008815

1-sigma variation

Unit

MOID

Value

0.001285

1-sigma variation

Unit

Orbit Period

Value

1072.1755

1-sigma variation

Unit

U parameter

Value

1.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.37630E-15	1.03070E-16	1.71146E-15	3.87494E-15	-1.17389E-14	-4.27121E-12
e	1.03070E-16	2.75247E-15	2.99065E-14	-8.81892E-14	6.96471E-13	-4.98597E-13
i	1.71146E-15	2.99065E-14	5.15458E-11	-2.52675E-11	3.03374E-11	-7.75199E-12
Ω	3.87494E-15	-8.81892E-14	-2.52675E-11	1.70581E-11	-3.60577E-11	-5.93873E-12
ω	-1.17389E-14	6.96471E-13	3.03374E-11	-3.60577E-11	1.90253E-10	-9.30628E-12
M	-4.27121E-12	-4.98597E-13	-7.75199E-12	-5.93873E-12	-9.30628E-12	1.32669E-8

Date of computation: 2026-08-19 13:30 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

19.98

Unit

Source

[3]

Quality

Value

3,T

Unit

Source

[3]

Amplitude

Value

1.3

Unit

mag

Source

[3]

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

[1]

Taxonomy (all)

Value

Unit

Source

[2]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

19.23

19.231

Unit

mag

Source

[4]

[5]

Slope Parameter (G)

Value

0.15**

0.15

Unit

Source

[5]

[6]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.34

Unit

Source

[7]

Diameter

Value

280

Unit

Source

[7]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

0.42

Unit

V-R

Source

[8]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Visual S

Radar R

Unit

Source

[9]

[10]

Download this part as:

Sources

No.	Name	Additional
[1]	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)
[2]	EARN	1.) Roberts, L.C. et al. (2007) Icarus 192, 469-474. (Characterization of the near-Earth Asteroid 2002 NY40) 2.) 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	1.) Lambert, J. et al. (2002) B.A.A.S. 34, 1172. (Observations of Near-Earth asteroid 2002 NY40...) 2.) DeGraff, D.R. & C.L. Windus (2002) B.A.A.S. 35, 567. (Differential photometry of asteroids 314,2271,2544,3028, 23481 and 2002 NY40) 3.) Petr Pravec's Ondrejov NEO Photometric Program Webpage "Prepublished Periods" 4.) Roberts, L.C. et al. (2007) Icarus 192, 469-474. (Characterization of the near-Earth Asteroid 2002 NY40)
[4]	EARN	1.) Pravec, P. et al. (2012) Icarus 221, 365-387 (Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations) 2.) Petr Pravec's Ondrejov NEO Photometric Program Webpage "Prepublished Periods"
[5]	ESA Aegis	ESA orbit determination and impact monitoring system
[6]	EARN	1.) Pravec, P. et al. (2012) Icarus 221, 365-387 (Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations)
[7]	EARN	1.) Mueller, T.G. et al. (2004) Astron. Astrophys. 424, 1075-1080. (Thermal infrared observations of near-Earth asteroid 2002 NY40)
[8]	EARN	1.) Pravec, P.; et al. (2005) Icarus 173, 108-131.
[9]	EARN	1.) Roberts, L.C. et al. (2007) Icarus 192, 469-474. (Characterization of the near-Earth Asteroid 2002 NY40)
[10]	EARN	1.) href="http://echo.jpl.nasa.gov/asteroids/index.html">JPL's NEO Radar Detection Program Webpage

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

8402

Unit

Source

[1]

Unobserved

Value

448

Unit

Source

[1]

Normalized RMS of residuals

Value

0.411806

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2002-07-12.40161

Unit

Source

[2]

Last Observation

Value

2025-07-13.111512

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

2743 (36)

Unit

Source

[1]

Radar Summary

First Observation
Last Observation
Delay (Discarded)
Doppler (Discarded)
Total Optical Observations (Discarded)

Radar

Value

Unit

Source

First Observation

Value

2002-08-16

Unit

Source

[3]

Last Observation

Value

2002-08-18

Unit

Source

[3]

Delay (Discarded)

Value

4 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

5 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

9 (0)

Unit

Source

[1]

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
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

Filters

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Max residual (arcsec):

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Computation parameters

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Final Date: *

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Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 2002NY40 from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1965-01-29 22:10	< 1 min	0.1885517	0.1885405	0.0000037
MARS	1965-03-31 06:15	< 1 min	0.0443544	0.0443520	0.0000008
EARTH	1970-08-20 04:08	< 1 min	0.0565273	0.0565075	0.0000066
EARTH	1994-02-21 19:18	< 1 min	0.1739028	0.1738953	0.0000025
MARS	1997-03-20 21:01	< 1 min	0.0478576	0.0478562	0.0000005
EARTH	2002-08-18 07:47	< 1 s	0.0035226	0.0035226	0.0000000
EARTH	2038-02-11 02:09	< 1 min	0.0072898	0.0072691	0.0000069
EARTH	2046-08-15 07:40	15.9	0.0735473	0.0729553	0.0001973
EARTH	2073-02-17 16:22	37.2	0.0954317	0.0939530	0.0004929
EARTH	2081-08-14 18:54	30.8	0.0729617	0.0718012	0.0003869
EARTH	2105-02-22 10:56	54.4	0.1444740	0.1421883	0.0007619
EARTH	2113-08-12 14:03	120.5	0.1201843	0.1153513	0.0016111
VENUS	2116-08-02 18:23	300.2	0.0406472	0.0350316	0.0018726

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
315.61552437	222.17510111	0.00128489	MINIMUM
42.95404578	37.36992007	0.00518941	MINIMUM
358.82461301	309.15143779	0.39878164	SADDLE
358.76295992	129.02984158	1.60732947	SADDLE
179.79238379	130.48144980	2.49824727	SADDLE
179.79450291	310.48686131	4.48687206	MAXIMUM

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MOID Plots

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