ASTROSAT CZTI

Data Quality Report

Orbit 10479

Creation date: 2024-06-27T15:59:43.724259
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/AS1A03_126T01_9000001512_10479cztM0_level2.evt modeM0/AS1A03_126T01_9000001512_10479cztM0_level2_quad_clean.evt
Size (bytes)523,820,160125,449,920
Size499.6 MB 119.6 MB
Events in quadrant A3,869,783800,190
Events in quadrant B3,990,838818,421
Events in quadrant C3,613,228817,504
Events in quadrant D3,865,087826,169

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023072
B023069
C023066
D022264

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235597292
B0255558722
C0235747904
D0235106509

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216
B0227
C0227
D0226

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7612280.367840%
B7547690.914271%
C7624150.196747%
D8118280.344913%

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 9452 8049 0 0 0.00% 0.00%
B 9453 7983 13 13 0.14% 0.16%
C 9453 8039 1 1 0.01% 0.01%
D 9453 8159 8 8 0.08% 0.10%

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 5 16 155141 833.62 922 903 185.0
A 3 80 89466 478.66 922 903 185.0
A 13 251 44372 234.94 922 903 185.0
B 4 239 261581 1515.81 923 903 172.0
B 0 214 42347 240.99 923 903 172.0
B 0 187 41196 234.3 923 903 172.0
C 14 234 13489 59.07 922 931 212.6
C 13 61 6822 27.71 922 931 212.6
C 14 67 3611 12.61 922 931 212.6
D 8 195 85083 369.39 961 938 227.8
D 2 14 35571 152.04 961 938 227.8
D 2 234 30952 131.76 961 938 227.8

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