Data Product Codes

PUNCH data products are organized into data processing levels from Level 0 (raw camera data) to Level 3 (calibrated science data). Within and across levels distinct data products and calibration files are marked with a unique identifying product code. For data in the spacecraft frame, each spacecraft is marked with a unique numeral identity - 1,2,3 for each WFI, or 4 for NFI.

Note that most PUNCH FITS data products contain the primary data within the first extension HDU, with corresponding uncertainties stored in the second extension HDU.

Data Product Codes

Level	Code	Description
0	PM1, PM2, PM3, PM4, PZ1, PZ2, PZ3, PZ4, PP1, PP2, PP3, PP4, CR1, CR2, CR3, CR4	Standard polarization (PM for -60 degree, PZ for 0 degree, PP for +60 degree polarization) and clear (CR) images
0	PX1, PX2, PX3, PX4	Science images in a nonstandard polarization state or when the filter wheel packet is stale
1	PM1, PM2, PM3, PM4, PZ1, PZ2, PZ3, PZ4, PP1, PP2, PP3, PP4, CR1, CR2, CR3, CR4	Standard polarization (PM for -60 degree, PZ for 0 degree, PP for +60 degree polarization) and clear (CR) images (photometrically calibrated)
2	PTM	Polarized science mosaics (trefoil) in output coordinates, resolved into MZP polarization triplets with uncertainty
2	CTM	Clear science mosaics (trefoil) in output coordinates, resolved into image with uncertainty
2	PNN	Polarized NFI images in output coordinates, resolved into MZP polarization triplets with uncertainty
2	CNN	Clear NFI images in output coordinates, resolved into image with uncertainty
Q	CNN	QuickPUNCH NFI images
Q	CTM	QuickPUNCH Mosaic images (5.4–80 Rsun)
L	CNN	Quicklook Clear NFI images
L	PNN	Quicklook Polarized NFI images
L	CTM	Quicklook Clear Mosaic images
L	PTM	Quicklook Polarized Mosaic images
3	PAN	Polarized low-noise NFI science image, bkg-sub & resolved into B, pB with uncertainty
3	CAN	Clear low-noise NFI science image, bkg-sub & resolved into B with uncertainty
3	PIM	Polarized science mosaics (trefoils), with F-corona subtraction, without starfield subtraction, and still in the MZP system
3	CIM	Clear science mosaics (trefoils), with F-corona subtraction and without starfield subtraction
3	PTM	Polarized K PUNCH science mosaics (trefoil), bkg-sub & resolved into B, pB with uncertainty
3	CTM	Clear K science mosaics (trefoil), bkg-sub & resolved into B with uncertainty
3	PNN	Polarized K NFI science image, bkg-sub & resolved into B, pB with uncertainty
3	CNN	Clear K NFI science image, bkg-sub & resolved into B with uncertainty
3	VAM	Mosaic derived wind velocity maps: 1440 pos. angles at various altitudes
3	PAM	Polarized low-noise science mosaic, bkg-sub & resolved into B, pB, pB’ with uncertainty
3	CAM	Clear low-noise science mosaic, bkg-sub & resolved into B with uncertainty

Calibration Product Codes

Level	Code	Description
0	DK1, DK2, DK3, DK4, DY1, DY2, DY3, DY4	Polarizer in dark position, used for calibration; stim lamp off (DK) or on (DY)
0	OV1, OV2, OV3, OV4	CCD over-scan images
0	XI1, XI2, XI3, XI4	Experimental image (no set parameters; variable crop)
1	BD1, BD2, BD3, BD4	Deficient pixel (boolean) map
1	DS1, DS2, DS3, DS4	Optical distortion models
1	FQ1, FQ2, FQ3, FQ4	Flat-field parameters (quartic polynomial coefficients), by pixel
1	GM1, GM2, GM3, GM4, GZ1, GZ2, GZ3, GZ4, GP1, GP2, GP3, GP4, GR1, GR2, GR3, GR4	Vignetting functions for the standard polarization (GM, GZ, GP) and clear (GR) states
1	LM1, LM2, LM3, LM4, LZ1, LZ2, LZ3, LZ4, LP1, LP2, LP3, LP4, LR1, LR2, LR3, LR4	Outlier limits used for image rejection, saved as NumPy format instead of FITS
1	MS1, MS2, MS3, MS4	Mask files to define where image is undefined for each satellite
1	QR1, QR2, QR3, QR4	Intermediate level-1 processing necessary for QuickPUNCH
1	SM1, SM2, SM3, SM4, SZ1, SZ2, SZ3, SZ4, SP1, SP2, SP3, SP4, SR1, SR2, SR3, SR4	Instrumental additive stray light model for the standard polarization (SM, SZ, SP) and clear (SR) states
1	TM1, TM2, TM3, TM4, TZ1, TZ2, TZ3, TZ4, TP1, TP2, TP3, TP4, TR1, TR2, TR3, TR4	Dynamic instrumental additive stray light model for the standard polarization (TM, TZ, TP) and clear (TR) states
1	XM1, XM2, XM3, XM4, XZ1, XZ2, XZ3, XZ4, XP1, XP2, XP3, XP4, XR1, XR2, XR3, XR4	Result of the “L1 early” pipeline stage, an input to dynamic stray light model generation.
1	YM1, YM2, YM3, YM4, YZ1, YZ2, YZ3, YZ4, YP1, YP2, YP3, YP4, YR1, YR2, YR3, YR4	Result of the “L1 middle” pipeline stage, an input to static stray light model generation.
1	RM1, RM2, RM3, RM4, RZ1, RZ2, RZ3, RZ4, RP1, RP2, RP3, RP4, RC1, RC2, RC3, RC4	Point Spread Function (PSF) model for the standard polarization and clear states
2	MS1, MS2, MS3, MS4	Additional masks applied in L2 immediately before reprojecting and merging..
Q	CFN	QuickPUNCH NFI images F corona model
Q	CFM	QuickPUNCH Mosaic images (5.4–80 Rsun) F corona model
3	PFM	Polarized mosaic F corona model, resolved into MZP pol. triplets with uncertainty
3	CFM	Clear mosaic F corona model, resolved into image with uncertainty
3	PFN	Polarized NFI F-corona model, resolved into MZP pol. triplets with uncertainty
3	CFN	Clear NFI F-corona model, resolved into image with uncertainty
3	PSM	Polarized mosaic stellar model, resolved into MZP pol. triplets with uncertainty
3	CSM	Clear mosaic stellar model, resolved into image with uncertainty
3	PSN	Polarized NFI stellar model, resolved into MZP pol. triplets with uncertainty
3	CSN	Clear NFI stellar model, resolved into image with uncertainty