obs_collection       = Northern Sky Narrowband Survey
obs_description      = Estimated variance (square noise) of H-alpha (HiPS simg.de/P/NSNS/DR0_2/halpha) normalized to 30" pixels. Use these data to assess the accuracy of the continuum-subtracted H-alpha, which is mainly determined by photon noise, whether from the signal of interest or from contamination.
prov_progenitor      = Calculated from 5" intermediate data of the Northern Sky Narrowband Survey DR0.2, see http://www.simg.de/nebulae3/dr0_2
obs_copyright        = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA).
obs_copyright_url    = http://www.simg.de/nebulae3/dr0_2
obs_regime           = Optical
client_category      = Image/Gas-lines/Halpha
client_sort_key      = 04227
client_application   = AladinDesktop
# client_application   = AladinLite
em_min               = 6.563E-7
em_max               = 6.563E-7
t_min                = 58432
t_max                = 60761
# --- generated by hipsgen ---
creator_did          = ivo://simg.de/P/NSNS/DR0_2/sn-halpha
hips_creator         = S. Ziegenbalg
#hips_copyright      = Copyright mention of the HiPS
obs_title            = NSNS DR0.2: Estimated variance of H-alpha
#obs_ack             = Acknowledgement mention
#bib_reference       = Bibcode for bibliographic reference
#bib_reference_url   = URL to bibliographic reference
hips_builder         = Aladin/HipsGen v12.119
hips_version         = 1.4
hips_release_date    = 2025-06-07T10:01Z
hips_frame           = equatorial
hips_order           = 5
hips_order_min       = 0
hips_tile_width      = 512
hips_status          = public mirror clonable
hips_initial_ra      = 60.0
hips_initial_dec     = 60.0
hips_initial_fov     = 150.0
hips_pixel_scale     = 0.003579
s_pixel_scale        = 0.001389
dataproduct_type     = image
hipsgen_date         = 2025-05-16T08:51Z
hipsgen_params       = in=tmp/sn_h out=./sn_h img=tmp/sn_h/003_003.fits "mode=overlayFading treeMean" order=5 frame=equatorial id=simg.de/P/NSNS/DR0_2/sn-halpha "title=Northern Sky Narrowband Survey, DR0.2, Estimated variance of H-alpha" "pixelcut=0.25 25 sqrt" "datarange=0.2 5e5" "creator=S. Ziegenbalg" "target=60 60 150" "status=public master clonable" CLEAN INDEX TILES ALLSKY CHECKCODE DETAILS
hips_creation_date   = 2025-05-16T08:51Z
hips_pixel_bitpix    = -32
data_pixel_bitpix    = -32
hips_sampling        = bilinear
hips_overlay         = overlayFading mergeOverwriteTile treeMean
hips_tile_format     = fits
hips_pixel_cut       = 0.25 25
hips_data_range      = 0.2 500000
moc_sky_fraction     = 0.6466
hips_estsize         = 11055667
hips_nb_tiles        = 10729
hips_check_code      = fits:1794725865
hipsgen_date_1       = 2026-02-25T15:06Z
hipsgen_params_1     = in=https://www.simg.de/nebulae3/dr0_2/sn_halpha out=./ MIRROR