ASTROSAT CZTI

Data Quality Report

Orbit 37307

Creation date: 2024-06-27T21:38:09.731317
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_094T14_9000005308_37307cztM0_level2.evt modeM0/AS1A10_094T14_9000005308_37307cztM0_level2_quad_clean.evt
Size (bytes)275,497,92056,710,080
Size262.7 MB 54.1 MB
Events in quadrant A1,538,236379,255
Events in quadrant B2,478,079367,871
Events in quadrant C1,471,527393,754
Events in quadrant D2,638,221350,087

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066330
B095020
C064460
D0100900

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3183200.628338%
B31832437.634307%
C318330.094251%
D318339812.503927%

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 3183 3183 17 17 0.53% 0.53%
B 3183 3183 175 175 5.50% 5.50%
C 3183 3183 3 3 0.09% 0.09%
D 3183 3183 379 379 11.91% 11.91%

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 10 83 109974 1567.52 340 332 69.9
A 13 248 81729 1163.71 340 332 69.9
A 15 222 13093 182.44 340 332 69.9
B 5 172 419518 6562.27 327 319 63.9
B 4 171 335753 5250.99 327 319 63.9
B 0 213 168226 2628.47 327 319 63.9
C 15 214 130826 1661.21 331 332 78.6
C 14 254 24308 305.22 331 332 78.6
C 1 23 18781 234.86 331 332 78.6
D 13 249 855631 11194.0 311 301 76.4
D 10 253 222899 2913.22 311 301 76.4
D 2 249 158750 2073.68 311 301 76.4

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