2001 HA4

(2001 HA4 )

Discovery Circumstances:

LINEAR - Lincoln Laboratory ETS, New Mexico

16 Apr 2001

(1)

Orbital Type:

AP

(*)( 2)

Taxonomic Type:

-

-

Albedo:

0.047

( 3)( 4)

Diameter:(km)

1.851 km

( 5)( 6)

H:(mag)

17.70

(#)

G:

0.15

(#)

U-B:(mag)

-

-

B-V:(mag)

-

-

V-R:(mag)

-

-

R-I:(mag)

-

-

Rotation Period:(hrs)

-

-

Quality:

-

-

Lightcurve Amplitude:(mag)

-

-

Spin Vector:

-

-

Sense of Rotation:

-

-

Radar Observations:

-

-

Spectral Observations:

-

-

IR Observations:

-

-

Remarks

* - orbital type derived from osculating orbital elements

# - absolute magnitude H derived from astrometric observation via orbit determination - G value assumed to be 0.15

References

( 1) M.P.E.C. 2001-H20

(002) Micheli, M. et al. (2009) DPS 41, 4308. (Investigation of Relationships between Known Meteor Streams and Recently Recovered NEOs) (2001HA4, 1997QK1)

(003) Mainzer, A. et al. (2011) ApJ 743, 156. (NEOWISE Observations of Near-Earth Objects: Preliminary Results) (albedo and diameters of 428 NEOs)

(004) Mommert, M. et al. (2015) Astron. J. 150, 106(9pp). (ExploreNEOs VIII: Dormant Short-Period Comets in the Near-Earth Asteroid Population) (23 NEOs)

(005) Mainzer, A. et al. (2011) ApJ 743, 156. (NEOWISE Observations of Near-Earth Objects: Preliminary Results) (albedo and diameters of 428 NEOs)

(006) Mommert, M. et al. (2015) Astron. J. 150, 106(9pp). (ExploreNEOs VIII: Dormant Short-Period Comets in the Near-Earth Asteroid Population) (23 NEOs)


NEODyS Page of 2001 HA4