ASTROSAT CZTI

Data Quality Report

Orbit 09957

Creation date: 2024-06-27T15:52:55.594127
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/AS1G07_016T01_9000001420_09957cztM0_level2.evt modeM0/AS1G07_016T01_9000001420_09957cztM0_level2_quad_clean.evt
Size (bytes)117,662,40028,149,120
Size112.2 MB 26.8 MB
Events in quadrant A750,334190,823
Events in quadrant B789,845192,352
Events in quadrant C624,626188,260
Events in quadrant D1,298,710174,131

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032070
B032970
C028710
D049000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A143120.139762%
B143190.628931%
C143100.000000%
D1431281.956674%

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 1431 1431 1 1 0.07% 0.07%
B 1431 1431 7 7 0.49% 0.49%
C 1431 1431 0 0 0.00% 0.00%
D 1431 1431 28 28 1.96% 1.96%

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 14 254 61145 1640.32 172 168 37.2
A 15 174 18685 498.12 172 168 37.2
A 13 14 6651 174.4 172 168 37.2
B 4 239 47098 1339.07 171 167 35.0
B 4 81 39354 1118.11 171 167 35.0
B 0 229 19702 557.38 171 167 35.0
C 13 61 1198 27.1 160 161 38.3
C 8 222 575 10.82 160 161 38.3
C 14 67 518 9.33 160 161 38.3
D 8 195 208346 5032.92 160 155 41.4
D 2 152 186153 4496.41 160 155 41.4
D 12 233 108990 2631.03 160 155 41.4

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