ASTROSAT CZTI

Data Quality Report

Orbit 20341

Creation date: 2024-06-27T18:14:10.821293
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/AS1A05_163T01_9000003010_20341cztM0_level2.evt modeM0/AS1A05_163T01_9000003010_20341cztM0_level2_quad_clean.evt
Size (bytes)590,578,560101,580,480
Size563.2 MB 96.9 MB
Events in quadrant A4,243,915622,472
Events in quadrant B4,375,720626,407
Events in quadrant C4,309,033613,194
Events in quadrant D4,365,226609,307

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01780
B01780
C01780
D01780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0182662
B0183812
C0183032
D0188482

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A87123604.132231%
B87133884.453116%
C87133744.292437%
D87132893.316883%

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 9297 8713 0 0 0.00% 0.00%
B 9298 8714 0 0 0.00% 0.00%
C 9298 8713 0 0 0.00% 0.00%
D 9298 8715 21 21 0.23% 0.24%

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 10648 43.06 1101 1075 222.3
A 3 137 9723 38.9 1101 1075 222.3
A 0 226 9407 37.48 1101 1075 222.3
B 0 198 44513 201.55 1094 1064 215.6
B 12 111 27778 123.92 1094 1064 215.6
B 0 214 25658 114.09 1094 1064 215.6
C 14 238 161652 643.34 1058 1063 249.6
C 7 220 12983 47.75 1058 1063 249.6
C 13 61 7329 25.1 1058 1063 249.6
D 1 52 194964 726.81 1083 1046 266.8
D 2 16 50842 186.64 1083 1046 266.8
D 2 234 37316 135.94 1083 1046 266.8

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