Asteroids

276033 2002AJ129 help

Last update: 2026-07-30 09:40 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.117

Aphelion (Q)

2.625

Eccentricity (e)

0.915

Inclination (i)

15.4

deg

Orbit period (P)

586.1

Earth MOID

0.00561

U parameter

0.0

Next Earth close approach

Date

2079-02-01

Nominal distance (from Earth center)

0.15023

22474504

Maximum Brightness

16.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

18.7

mag

Diameter

500 - 1100*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2002-01-15

Observatory

Haleakala-AMOS

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

1.370688

1-sigma variation

1.044E-9

Unit

Eccentricity (e)

Value

0.914923

1-sigma variation

9.483E-9

Unit

Inclination (i)

Value

15.4422

1-sigma variation

5.066E-6

Unit

Long. of Ascending Node (Ω)

Value

138.0012

1-sigma variation

4.867E-6

Unit

Arg. of Perihelion (ω)

Value

211.0452

1-sigma variation

5.254E-6

Unit

Mean Anomaly (M)

Value

94.08853

1-sigma variation

2.446E-6

Unit

Perihelion distance

Value

0.116615

1-sigma variation

Unit

Aphelion distance

Value

2.624762

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.046953

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.888792

1-sigma variation

Unit

MOID

Value

0.005606

1-sigma variation

Unit

Orbit Period

Value

586.1469

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	1.08905E-18	-2.47792E-20	3.24007E-16	-4.11924E-17	6.67453E-17	-2.52413E-15
e	-2.47792E-20	8.99343E-17	-3.00434E-15	-1.06202E-14	-6.35577E-15	-3.34207E-15
i	3.24007E-16	-3.00434E-15	2.56660E-11	6.18033E-12	-6.51916E-12	-6.99548E-13
Ω	-4.11924E-17	-1.06202E-14	6.18033E-12	2.36870E-11	-2.39237E-11	4.40660E-13
ω	6.67453E-17	-6.35577E-15	-6.51916E-12	-2.39237E-11	2.76056E-11	1.43164E-13
M	-2.52413E-15	-3.34207E-15	-6.99548E-13	4.40660E-13	1.43164E-13	5.98243E-12

Date of computation: 2026-07-30 09:40 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

18.748

18.37

Unit

mag

Source

[1]

[2]

Slope Parameter (G)

Value

0.15**

Unit

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[3]

Diameter

Value

500 - 1100*

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

Radar R

Unit

Source

[4]

Download this part as:

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	EARN	1.) Jewitt, D. (2013) Astron. J. 145_133. (properties of Near-Sun Asteroids) (3200,105140,141851,276033,2004UL, 2002PD43,2006TC,2005UD,1999YC)
[3]	Estimation	Estimated from absolute magnitude
[4]	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

8828

Unit

Source

[1]

Unobserved

Value

141

Unit

Source

[1]

Normalized RMS of residuals

Value

0.546344

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2002-01-15.59885

Unit

Source

[2]

Last Observation

Value

2026-03-18.225103

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

736 (14)

Unit

Source

[1]

Radar Summary

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

Radar

Value

Unit

Source

First Observation

Value

2018-02-03

Unit

Source

[3]

Last Observation

Value

2018-02-05

Unit

Source

[3]

Delay (Discarded)

Value

3 (0)

Unit

Source

[1]

Doppler (Discarded)

Value

2 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

5 (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

Initial Date: *

Final Date: *

Normalised Only accepted

Max residual (arcsec):

* - these fields are required

Plot

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

* - these fields are required

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 276033 2002AJ129 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	1957-02-02 20:18	< 1 min	0.0666473	0.0666464	0.0000003
EARTH	1965-02-08 10:59	< 1 min	0.0790710	0.0790701	0.0000003
4 Vesta	1970-04-27 05:21	< 1 s	0.0045081	0.0045078	0.0000001
EARTH	2010-01-30 15:27	< 1 s	0.1820892	0.1820890	0.0000001
MARS	2010-03-15 18:32	< 1 s	0.0412417	0.0412416	0.0000000
EARTH	2018-02-04 21:30	< 1 s	0.0281255	0.0281255	0.0000000
EARTH	2026-02-09 18:08	< 1 s	0.0933339	0.0933337	0.0000001
4 Vesta	2053-10-18 13:29	< 1 s	0.0193466	0.0193463	0.0000001
EARTH	2079-02-01 07:53	< 1 s	0.1502328	0.1502319	0.0000003
EARTH	2087-02-05 18:50	< 1 s	0.0250891	0.0250882	0.0000003
EARTH	2095-02-09 16:46	< 1 s	0.0732947	0.0732944	0.0000001
EARTH	2103-02-15 10:14	< 1 min	0.1821359	0.1821345	0.0000005

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
72.17008397	31.91636729	0.00560552	MINIMUM
287.82316399	95.05110984	0.23862724	MINIMUM
357.58106894	239.64893950	0.89219752	SADDLE
357.51193196	59.17418221	1.10806115	SADDLE
180.34675706	63.46178228	1.64718941	SADDLE
179.63675369	243.31030042	3.62537658	MAXIMUM

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MOID Plots

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