ASTROSAT CZTI

Data Quality Report

Orbit 26039

Creation date: 2024-06-27T19:24:08.077149
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/AS1A09_033T02_9000003762_26039cztM0_level2.evt modeM0/AS1A09_033T02_9000003762_26039cztM0_level2_quad_clean.evt
Size (bytes)452,753,28089,017,920
Size431.8 MB 84.9 MB
Events in quadrant A3,255,918585,064
Events in quadrant B3,405,918587,807
Events in quadrant C3,147,081550,375
Events in quadrant D3,494,949553,105

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130390
B0135470
C0127380
D0139920

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6005611.015820%
B60061191.981352%
C6006831.381951%
D6006881.465201%

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 7310 6005 1 1 0.01% 0.02%
B 7311 6006 39 39 0.53% 0.65%
C 7311 6007 0 0 0.00% 0.00%
D 7311 6006 34 34 0.47% 0.57%

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 0 13 50633 303.92 832 819 163.9
A 13 254 8400 46.25 832 819 163.9
A 0 226 7204 38.96 832 819 163.9
B 10 245 163530 1068.43 807 789 152.3
B 0 229 40763 262.44 807 789 152.3
B 0 230 26457 168.52 807 789 152.3
C 14 238 127039 710.53 772 779 177.7
C 0 10 6149 30.22 772 779 177.7
C 3 233 5359 25.77 772 779 177.7
D 1 52 383183 2006.39 794 777 190.6
D 7 223 63966 331.54 794 777 190.6
D 2 234 19585 98.68 794 777 190.6

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