Asteroids

144898 2004VD17 help

Last update: 2026-06-04 23:11 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

0.620

Aphelion (Q)

2.396

Eccentricity (e)

0.589

Inclination (i)

4.2

deg

Orbit period (P)

676.2

Earth MOID

0.00158

U parameter

0.0

Next Earth close approach

Date

2032-05-01

Nominal distance (from Earth center)

0.02099

3140155

Maximum Brightness

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

18.8

mag

Diameter

320

Taxonomic type

Rotation period (T)

3.369

Discovery Information

Discovery Date

2004-11-07

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

1.507735

1-sigma variation

2.357E-9

Unit

Eccentricity (e)

Value

0.589059

1-sigma variation

2.253E-8

Unit

Inclination (i)

Value

4.2237

1-sigma variation

3.380E-6

Unit

Long. of Ascending Node (Ω)

Value

223.9047

1-sigma variation

2.316E-5

Unit

Arg. of Perihelion (ω)

Value

91.0740

1-sigma variation

2.282E-5

Unit

Mean Anomaly (M)

Value

265.53091

1-sigma variation

0.00001

Unit

Perihelion distance

Value

0.619590

1-sigma variation

Unit

Aphelion distance

Value

2.395881

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.013141

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.017439

1-sigma variation

Unit

MOID

Value

0.001576

1-sigma variation

Unit

Orbit Period

Value

676.2171

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	5.55654E-18	-4.24977E-17	3.97939E-16	-2.28635E-15	2.72527E-15	-1.66451E-14
e	-4.24977E-17	5.07693E-16	-2.25391E-15	2.97427E-14	-2.38702E-14	1.05533E-13
i	3.97939E-16	-2.25391E-15	1.14212E-11	5.64534E-12	-5.85784E-12	-8.74346E-13
Ω	-2.28635E-15	2.97427E-14	5.64534E-12	5.36232E-10	-5.17323E-10	-1.58858E-11
ω	2.72527E-15	-2.38702E-14	-5.85784E-12	-5.17323E-10	5.20597E-10	-9.52936E-12
M	-1.66451E-14	1.05533E-13	-8.74346E-13	-1.58858E-11	-9.52936E-12	8.07249E-11

Date of computation: 2026-06-04 23:11 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

1.990

3.369

Unit

Source

[3]

[1]

Quality

Value

Unit

Source

[3]

Amplitude

Value

0.21

0.19

Unit

mag

Source

[3]

[1]

Rotation Direction

Value

Unit

Source

[-]

Spinvector L

Value

190

Unit

Source

[1]

Spinvector B

Value

-4

Unit

Source

[1]

Taxonomy
Taxonomy (all)

Taxonomy

Value

Unit

Source

Taxonomy

Value

Unit

Source

[2]

[3]

[4]

Taxonomy (all)

Value

Unit

Source

[5]

[3]

[5]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

18.812

Unit

mag

Source

[6]

Slope Parameter (G)

Value

0.15**

Unit

Source

[6]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.45

Unit

Source

[3]

Diameter

Value

320

Unit

Source

[3]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

0.76

0.4

Unit

B-V

V-R

Source

[3]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Visual S

Unit

Source

[3]

Download this part as:

Sources

No.	Name	Additional
[1]	EARN	1.) Near-Earth Asteroid Lightcurve Analysis at the Center for Solar System Studies: 2019 March-July, B.D. Warner
[2]	EARN	1.) Michaël Marsset et al 2022 AJ 163 165
[3]	EARN	1.) DeLuise, F. et al. (2007) Icarus 191,628-635. (Physical Investigation of the Potentially Hazardous Asteroid (144898) 2004 VD17)
[4]	EARN	1.) Alexey V. Sergeyev and Benoit Carry A&A, 652 (2021) A59
[5]	EARN	Earth Asteroids Research Node: https://earn.dlr.de
[6]	ESA Aegis	ESA orbit determination and impact monitoring system

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

8800

Unit

Source

[1]

Unobserved

Value

119

Unit

Source

[1]

Normalized RMS of residuals

Value

0.465519

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2002-02-16.46212

Unit

Source

[2]

Last Observation

Value

2026-03-22.219603

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

1503 (3)

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

Filters

Initial Date: *

Final Date: *

Normalised Only accepted

Max residual (arcsec):

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Plot

Computation parameters

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Initial Date: *

Final Date: *

Output option:

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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 144898 2004VD17 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	1954-11-05 18:24	< 1 min	0.0344409	0.0344390	0.0000006
EARTH	1969-05-12 06:24	< 1 s	0.1421268	0.1421265	0.0000001
EARTH	1982-04-29 00:42	< 1 min	0.0792150	0.0792140	0.0000003
EARTH	1991-11-12 23:17	< 1 min	0.0897760	0.0897753	0.0000002
EARTH	2004-11-02 05:40	< 1 min	0.0895055	0.0895052	0.0000001
EARTH	2032-05-01 22:36	< 1 min	0.0209906	0.0209898	0.0000003
EARTH	2041-11-07 14:42	< 1 min	0.0130698	0.0130660	0.0000013
EARTH	2067-05-06 05:34	3.5	0.0411719	0.0410496	0.0000408
EARTH	2076-11-01 00:47	< 1 min	0.1172395	0.1172252	0.0000048
EARTH	2087-11-18 10:35	3.6	0.1831221	0.1829500	0.0000573
EARTH	2102-05-02 21:24	8.5	0.0371651	0.0368300	0.0001117
EARTH	2113-05-16 02:41	14.2	0.1639371	0.1635983	0.0001129
EARTH	2122-11-06 01:38	24.9	0.0738783	0.0730390	0.0002798

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
304.26528378	117.50063208	0.00157566	MINIMUM
54.42803537	302.02202762	0.00213512	MINIMUM
358.95574687	209.28117272	0.39929941	SADDLE
179.72498449	30.23443245	1.41465529	SADDLE
358.98090182	29.30944666	1.60425334	SADDLE
179.72219572	210.22725706	3.40846496	MAXIMUM

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MOID Plots

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