I'd have to agree with Barry. It will still be in Sagitta, a bit west of Zeta Sge tonight.
A week or two back I took the coords according to Stellarium/CdC/TheSky6 all using the same orbital elements, fed them into my Gemini and it put Garradd in the FOV, and that was with shoddy polar align.
On Friday with much better PA I did the same, and immediately the fog rolled in.
My own code generates:
Code:
[CK09P010]
# H= 4.0 G= 4.0
name = C/2009 P1 (Garradd) # MPEC 2011-Q34
parent = Sun
radius = 543.850273676859
oblateness = 0.0
halo = true
color = 1.0,1.0,1.0
tex_halo = star16x16.png
tex_map = nomap.png
coord_func = comet_orbit
orbit_TimeAtPericenter = 2455919.1754 # 2011-12-23.6754
orbit_PericenterDistance = 1.550564
orbit_Eccentricity = 1.001011
orbit_ArgOfPericenter = 90.7454
orbit_AscendingNode = 325.9972
orbit_Inclination = 106.1774
lighting = true
albedo = 0.15
orbit_visualization_period = 705.220242124208
absolute_magnitude = 4.0
slope_parameter = 4.0
orbit_Epoch = 2455800.5 # 2011-08-27
from MPC's Soft00Cmt which, given the different albedo assumption, matches the values Stellarium 0.10.6 put in ssystem.ini by itself.