ASTROSAT CZTI

Data Quality Report

Orbit 32110

Creation date: 2024-06-27T20:36:35.393573
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/AS1T04_051T01_9000004686_32110cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32110cztM0_level2_quad_clean.evt
Size (bytes)1,605,240,000271,584,000
Size1.5 GB 259.0 MB
Events in quadrant A8,671,4151,815,734
Events in quadrant B15,857,7221,748,164
Events in quadrant C9,412,5431,770,663
Events in quadrant D13,519,5401,709,301

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0271
C0260
D0293

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0379611931
B0617433084
C0403621981
D0559573027

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A036919
B037020
C037323
D036919

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A171414402.566945%
B1713213788.043428%
C171519095.299983%
D171235293.089412%

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 23033 17167 0 0 0.00% 0.00%
B 23032 17154 585 585 2.54% 3.41%
C 23035 17175 55 55 0.24% 0.32%
D 23031 17154 157 157 0.68% 0.92%

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 6 35250 74.47 2237 2195 443.9
A 13 254 34959 73.81 2237 2195 443.9
A 3 137 21868 44.32 2237 2195 443.9
B 6 159 4609917 11422.56 2156 2104 403.4
B 10 245 2140817 5301.77 2156 2104 403.4
B 0 190 242669 596.35 2156 2104 403.4
C 14 238 421188 860.95 2112 2126 486.7
C 0 10 360411 736.09 2112 2126 486.7
C 3 233 173302 351.68 2112 2126 486.7
D 8 195 3777914 7451.14 2159 2104 506.7
D 12 79 698385 1374.03 2159 2104 506.7
D 12 233 685257 1348.13 2159 2104 506.7

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