ASTROSAT CZTI

Data Quality Report

Orbit 29311

Creation date: 2024-06-27T20:02:38.874897
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A10_050T01_9000004212_29311cztM0_level2.evt modeM0/AS1A10_050T01_9000004212_29311cztM0_level2_quad_clean.evt
Size (bytes)1,207,811,520147,093,120
Size1.1 GB 140.3 MB
Events in quadrant A5,634,893954,360
Events in quadrant B6,899,044951,194
Events in quadrant C12,617,760903,928
Events in quadrant D10,690,024886,303

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236051
B0276821
C0451958
D0393531

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02220
B02220
C02220
D02220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10956610.556773%
B109563933.587076%
C10955194717.772707%
D10958120210.969155%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 28776 10958 41 41 0.14% 0.37%
B 28776 10958 230 230 0.80% 2.10%
C 28776 10957 1312 1312 4.56% 11.97%
D 28777 10960 888 888 3.09% 8.10%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 13 328016 1210.19 1352 1327 269.9
A 15 174 52919 191.12 1352 1327 269.9
A 1 113 31081 110.22 1352 1327 269.9
B 5 255 1348286 5516.47 1323 1293 244.2
B 10 245 176484 717.48 1323 1293 244.2
B 0 190 126168 511.41 1323 1293 244.2
C 3 233 7487771 25476.56 1257 1266 293.9
C 14 238 197960 669.35 1257 1266 293.9
C 2 114 25020 80.83 1257 1266 293.9
D 1 52 3258107 10779.22 1268 1238 302.1
D 12 233 920366 3042.03 1268 1238 302.1
D 8 195 711045 2349.24 1268 1238 302.1

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter