ASTROSAT CZTI

Data Quality Report

Orbit 37297

Creation date: 2024-06-27T21:38:03.560454
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_103T07_9000005302_37297cztM0_level2.evt modeM0/AS1A10_103T07_9000005302_37297cztM0_level2_quad_clean.evt
Size (bytes)755,352,000123,298,560
Size720.4 MB 117.6 MB
Events in quadrant A5,219,267753,978
Events in quadrant B5,120,643763,885
Events in quadrant C5,998,256753,313
Events in quadrant D5,814,244723,019

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224484
B0223723
C0246433
D0248853

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0390

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02180
B02180
C02180
D02180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10681240.224698%
B10681290.271510%
C106811891.769497%
D106811691.582249%

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 13518 10683 11 11 0.08% 0.10%
B 13518 10683 8 8 0.06% 0.07%
C 13518 10683 169 169 1.25% 1.58%
D 13518 10683 162 162 1.20% 1.52%

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 478253 1983.92 1191 1166 240.5
A 6 10 55645 226.54 1191 1166 240.5
A 13 248 37995 153.15 1191 1166 240.5
B 0 213 232248 1010.97 1190 1157 228.6
B 0 221 135555 587.96 1190 1157 228.6
B 12 111 29153 122.48 1190 1157 228.6
C 1 23 682358 2531.02 1157 1165 269.1
C 15 214 442487 1639.77 1157 1165 269.1
C 0 10 337095 1248.17 1157 1165 269.1
D 2 249 301112 1068.93 1154 1123 280.6
D 12 227 267388 948.76 1154 1123 280.6
D 2 153 205172 727.07 1154 1123 280.6

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