###########################################################################
# Sort by "who":
#
# data_prod		 instr.   level    who	  proposed filetype
#----------------        ------   -----   ----    ---------------------------
#
sdp_profile		 ocat	    -	   ?	  ?
adc_correction		 hrc   	    1      ad	  FITS bintable
arf			 hrc   	    2      ad     FITS
bad_pixel_list		 hrc   	    1      ad     FITS table; regions?
degap_correction	 hrc   	    1      ad     FITS bintable; params
detector_geometry	 hrc   	    -      ad     pixlib params
gain		         hrc   	    1	   ad	  FITS image
internal_bkg		 hrc   	    -	   ad	  param
pi_bands		 hrc	    2	   ad	  FITS bintable
pred_cosmic_ray_inten	 bkg	    -	   ad	  params
pred_solbkg_int		 bkg	    -	   ad	  param
pred_xray_int		 bkg	    -	   ad	  ?
qe_mean			 hrc	    2	   ad	  FITS bintable
qe_uniformity		 hrc   	    2	   ad	  FITS images
rmf			 hrc   	    2	   ad	  FITS RMF
field_source_catalog	 external   -      ad?    FITS table?

arf			 hetg  	    2	   dph	  FITS
arf			 letg  	    2      dph    FITS
grating_angles		 hetg  	    -	   dph	  params
grating_angles		 letg  	    -	   dph	  params
grating_efficiency	 hetg  	    -	   dph	  FITS bintable
grating_efficiency	 letg  	    -	   dph	  FITS bintable
grating_periods		 hetg  	    -	   dph	  params
grating_periods		 letg  	    -	   dph	  params
grating_radii		 hetg  	    -	   dph	  params
grating_radii		 letg  	    -	   dph	  params
mirror_geometrical_area	 hrma	    -	   dph	  param
mirror_vignetting	 hrma	    -	   dph	  FITS bintable
pi_psf_tbl		 acis	    1.5	   dph	  FITS bintable
psf_width_table		 hrma	    1.5	   dph	  FITS bintable
rmf			 hetg  	    2	   dph	  FITS RMF
rmf			 letg  	    2	   dph	  FITS RMF
rowland_spacing		 hetg	    1.5	   dph	  param
rowland_spacing		 letg	    1.5	   dph	  param
stable_aspect_tolerances aspect	    1.5	   dph	  params

lsf			 hetg  	    -	   dsd	  FITS image; params?
lsf			 letg  	    -	   dsd	  FITS image; params?
mirror_efficiency	 hrma	    -	   dsd	  FITS bintable
psf			 acis	    2	   dsd	  FITS images; params
psf			 hrc	    -	   dsd	  FITS images; params
psf			 hrma	    -	   dsd	  FITS images; params?
psf_calibration		 hrma	    -	   dsd	  FITS images; params?

spectral_line_catalog	 external   -	   jh	  FITS table?

arf			 acis  	    2	   jhk	  FITS
bad_pixel_list		 acis  	    1      jhk    FITS table; regions?
bias_map		 acis  	    1      jhk    FITS images
detector_geometry	 acis  	    -      jhk    pixlib params
ecd			 acis  	    2      jhk    FITS bintable
filter_transmission	 acis	    2	   jhk	  FITS bintable (in ARF?)
filter_uniformity	 acis	    2	   jhk	  FITS images?
gain			 acis  	    1	   jhk	  FITS bintable
grading_system		 acis  	    1	   jhk	  params
internal_bkg		 acis  	    1	   jhk	  ?
pi_bands		 acis	    2	   jhk	  FITS bintable
pileup_response		 acis	    2	   jhk	  param
qe_mean			 acis	    2	   jhk	  FITS bintable
qe_uniformity		 acis  	    2	   jhk	  FITS images
rmf			 acis  	    2	   jhk	  FITS RMF
split_thresholds	 acis	    1	   jhk	  params

aca_bad_pixel_map	 aspect	    -	   mk	  FITS bintable list
aca_calibration		 aspect     -	   mk	  ?
aca_fid_light_psf	 aspect     -	   mk	  FITS images; functions?
aca_flat_field		 aspect     -	   mk	  FITS image
aca_stellar_psf		 aspect     -	   mk	  FITS images; functions?
fid_light_brightness	 aspect     -      mk     ?
fid_light_coords	 aspect     -      mk     ?
guide_star_catalog	 aspect	    -	   mk	  FITS bintable?
gyro_calibration_data	 aspect     -	   mk	  ?
planned_guide_stars	 aspect	    -	   mk?	  ?

arf			 hrma  	    2      ov?    FITS
field_multiwave_image	 external   -      ov?    FITS images 
foclen			 hrma  	    -	   ov?	  param?
orbital_ephemeris	 spacecraft -	   ov?	  ?
screening_par		 ocat	    -	   ov?	  ?
solar_system_ephemeris	 external   -	   ov?	  ?
start_time		 ocat	    -	   ov?	  ?
stop_time		 ocat	    -	   ov?	  ?
viewing_geometry	 spacecraft -	   ov?	  ?