2003 GJ21

(2003 GJ21 )

Discovery Circumstances:

Spacewatch - Steward Observatory, Kitt Peak-Spacewatch

7 Apr 2003

(1)

Orbital Type:

AM

(*)

Taxonomic Type:

V

( 2)( 3)

Albedo:

-

-

Diameter:(km)

79 - 177 m

($)

H:(mag)

22.83

( 4)

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:

Y

( 5)

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

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

References

( 1) M.P.E.C. 2003-G38

(002) Marchi, S. et al. (2005) Icarus 175, 170-174. (New V-type asteroids in near-Earth space) (2003 EG,2003 FT3, 2003 FU3, 2003 GJ21)

(003) Lazzarin, M., Marchi,S. & Magrin, S. (2010) SINEO Database (Spectroscopic Investiation of Near-Earth Objects)

(004) Marchi, S. et al. (2005) Icarus 175, 170-174. (New V-type asteroids in near-Earth space) (2003 EG,2003 FT3, 2003 FU3, 2003 GJ21)

(005) Lazzarin, M., Marchi,S. & Magrin, S. (2010) SINEO Database (Spectroscopic Investiation of Near-Earth Objects)


NEODyS Page of 2003 GJ21