Asteroids

2009VA help

Last update: 2025-04-22 02:31 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.910

Aphelion (Q)

1.392

Eccentricity (e)

0.210

Inclination (i)

12.3

deg

Orbit period (P)

450.9

Earth MOID

0.00003

U parameter

9.0

Next Earth close approach

Date

2026-03-31

Nominal distance (from Earth center)

0.15865

23733907

Maximum Brightness

mag

Risk

Object is in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

28.8

mag

Diameter

5 - 10*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2009-11-06

Observatory

Catalina Sky Survey

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.150850

1-sigma variation

0.014980

Unit

Eccentricity (e)

Value

0.209587

1-sigma variation

0.007581

Unit

Inclination (i)

Value

12.2738

1-sigma variation

0.3099

Unit

Long. of Ascending Node (Ω)

Value

224.3772

1-sigma variation

0.0519

Unit

Arg. of Perihelion (ω)

Value

238.2822

1-sigma variation

2.6406

Unit

Mean Anomaly (M)

Value

158.03022

1-sigma variation

88.86440

Unit

Perihelion distance

Value

0.909647

1-sigma variation

Unit

Aphelion distance

Value

1.392053

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.228125

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.000029

1-sigma variation

Unit

MOID

Value

0.000029

1-sigma variation

Unit

Orbit Period

Value

450.9480

1-sigma variation

Unit

U parameter

Value

9.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.24405E-4	1.10040E-4	-3.66601E-3	7.47692E-4	-3.84652E-2	-1.33119E0
e	1.10040E-4	5.74677E-5	-1.44177E-3	3.39914E-4	-1.77086E-2	-6.53308E-1
i	-3.66601E-3	-1.44177E-3	9.60188E-2	-1.49273E-2	7.45397E-1	2.16924E1
Ω	7.47692E-4	3.39914E-4	-1.49273E-2	2.69492E-3	-1.36948E-1	-4.43128E0
ω	-3.84652E-2	-1.77086E-2	7.45397E-1	-1.36948E-1	6.97250E0	2.28003E2
M	-1.33119E0	-6.53308E-1	2.16924E1	-4.43128E0	2.28003E2	7.89688E3

Date of computation: 2025-03-29 00:36 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

28.831

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

5 - 10*

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

0.1

Unit

Source

[1]

Unobserved

Value

5646

Unit

Source

[1]

Normalized RMS of residuals

Value

0.191446

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2009-11-06.25793

Unit

Source

[2]

Last Observation

Value

2009-11-06.38259

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

10 (0)

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 2009VA 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	1970-11-23 08:09	> 1 mo	0.0676572	0.0162860	1.8910691
EARTH	1993-01-31 16:10	> 1 mo	0.1304813	0.1267918	0.2403672
EARTH	2009-11-06 21:31	39.4	0.0001367	0.0001050	0.0000108
EARTH	2026-03-31 17:29	> 1 mo	0.1586514	0.1536149	0.4319212
EARTH	2030-11-01 20:30	> 1 mo	0.0747903	0.0026545	2.7328580
EARTH	2046-11-29 19:22	> 1 mo	0.1589085	0.0463540	0.4516126
EARTH	2047-04-11 21:20	> 1 mo	0.1754493	0.1491070	0.1906441
EARTH	2067-11-10 16:26	> 1 mo	0.0376716	0.0006717	2.4921236
EARTH	2088-11-26 15:13	> 1 mo	0.1487143	0.0379451	10.1738187
EARTH	2089-04-12 00:50	> 1 mo	0.1800457	0.1581604	4.2274031
EARTH	2093-10-26 02:41	> 1 mo	0.1853779	0.0105390	12.9482613
EARTH	2110-04-05 21:59	> 1 mo	0.1561122	0.1509340	2.3005080
EARTH	2114-11-01 07:27	> 1 mo	0.1032091	0.0033037	18.6846561

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
311.48517021	302.93846427	0.00002888	MINIMUM
77.33596554	89.58211602	0.15439758	MINIMUM
23.57430786	28.81606785	0.21187989	SADDLE
191.76335640	189.59303806	0.43893831	SADDLE
3.01979805	183.54095694	1.91771052	SADDLE
177.51771259	357.77758687	2.36639161	MAXIMUM

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MOID Plots

Click on the images to zoom-in and zoom-out

Level lines of the squared distance function

2009VA

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS
2022-11-07.029	59890.029	-3.159	0.32 ± 1.371	3.47E3	1.66E-6	1.16E-8	n/a
2025-11-06.845	60985.845	-0.226	0.88 ± 0.345	3.80E4	2.82E-5	2.38E-7	-4.60
2026-11-07.065	61351.065	-1.214	0.53 ± 0.401	3.55E4	1.65E-5	1.30E-7	-5.23
2026-11-07.189	61351.189	4.470	1.26 ± 1.391	2.05E4	1.64E-9	1.97E-11	-9.09
2028-11-06.538	62081.538	0.926	1.67 ± 0.294	4.93E6	4.57E-8	4.17E-10	-8.05
2030-11-07.030	62812.030	-0.223	1.46 ± 0.321	4.37E6	1.30E-7	1.10E-9	-7.81
2030-11-07.212	62812.212	4.792	1.45 ± 3.077	2.67E4	1.84E-10	2.26E-12	-10.52
2031-11-07.433	63177.433	3.586	0.52 ± 1.597	2.40E5	5.27E-9	5.89E-11	-9.17
2032-11-06.519	63542.519	-1.219	0.71 ± 0.486	2.60E6	2.07E-7	1.63E-9	-7.76
2033-11-06.814	63907.814	0.930	1.53 ± 0.432	3.16E6	1.13E-7	1.03E-9	-8.02
2035-11-07.324	64638.324	0.900	1.37 ± 0.384	2.70E6	1.71E-7	1.56E-9	-7.93
2036-11-06.546	65003.546	-0.721	0.30 ± 0.113	7.48E5	1.36E-6	1.11E-8	-7.10
2036-11-06.582	65003.582	-0.235	1.68 ± 0.674	2.38E6	2.35E-7	1.98E-9	-7.85
2042-11-07.114	67195.114	1.906	1.54 ± 1.232	1.10E6	1.12E-7	1.09E-9	-8.30
2043-11-07.346	67560.346	1.530	1.03 ± 0.144	1.66E6	2.02E-7	1.92E-9	-8.07


Based on 10 optical observations (of which 0 are rejected as outliers) from 2009/11/06.258 to 2009/11/06.383.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.69 and 1.69 Earth radii.
Coordinates for LOV = CAR scaled= 1 second= F.
AstOD software version= 4.0, Date of computation=20250305 090940.258 UTC.

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