ASTROSAT CZTI

Data Quality Report

Orbit 33403

Creation date: 2024-06-27T20:48:26.647340
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/AS1C07_001T03_9000004790_33403cztM0_level2.evt modeM0/AS1C07_001T03_9000004790_33403cztM0_level2_quad_clean.evt
Size (bytes)627,932,16092,557,440
Size598.8 MB 88.3 MB
Events in quadrant A3,179,100602,513
Events in quadrant B4,862,233577,822
Events in quadrant C4,106,279591,326
Events in quadrant D6,399,263547,245

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140292
B0190201
C0164141
D0239281

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A695660.086256%
B69565447.820587%
C69562403.450259%
D69564666.699252%

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 9942 6958 0 0 0.00% 0.00%
B 9942 6957 400 400 4.02% 5.75%
C 9942 6958 206 206 2.07% 2.96%
D 9942 6958 437 437 4.40% 6.28%

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 13 254 10699 60.32 821 806 164.0
A 3 137 8315 45.78 821 806 164.0
A 0 226 6927 37.32 821 806 164.0
B 5 172 1443306 9552.71 789 768 151.0
B 0 219 91007 597.58 789 768 151.0
B 0 190 64106 419.43 789 768 151.0
C 4 254 446204 2465.76 780 783 180.6
C 15 214 295942 1633.94 780 783 180.6
C 0 10 135558 746.09 780 783 180.6
D 8 195 1293352 6811.7 775 751 189.8
D 2 250 971208 5114.07 775 751 189.8
D 12 218 398243 2094.69 775 751 189.8

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