(144411) 2004 EW9

(2004 EW9 )

Discovery Circumstances:

NEAT - Palomar Mountain/NEAT

15 Mar 2004

(1)

Orbital Type:

AP

(*)

Taxonomic Type:

-

-

Albedo:

-

-

Diameter:(km)

1.4 - 3.2 km

($)

H:(mag)

16.620

( 2)

G:

0.24

( 3)

U-B:(mag)

-

-

B-V:(mag)

-

-

V-R:(mag)

-

-

R-I:(mag)

-

-

Rotation Period:(hrs)

49.94

( 4)

Quality:

3 !

( 4)

Lightcurve Amplitude:(mag)

0.9

( 4)

Spin Vector:

-

-

Sense of Rotation:

-

-

Radar Observations:

Y

( 5)

Spectral Observations:

-

-

IR Observations:

-

-

Remarks

* - orbital type derived from osculating orbital elements

$ - diameter range derived from H and assumed albedo for C and S type - 0.04 and 0.20 respectively

! - quality code according to Lagerkvist et al. (1989) in "Asteroids II" (Eds. R.P.Binzel et al.), Univ.Ariz.Press, Tucson, USA, pp. 1162-1179.

References

( 1) M.P.E.C. 2004-F07

(002) Pravec, P. et al. (2012) Icarus 221, 365-387 (Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations)

(003) Pravec, P. et al. (2012) Icarus 221, 365-387 (Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations)

(004) Petr Pravec's Ondrejov NEO Photometric Program Webpage "Prepublished Periods"

(005) JPL's NEO Radar Detection Program Webpage


NEODyS Page of (144411) 2004 EW9