ASTROSAT CZTI

Data Quality Report

Orbit 16094

Creation date: 2024-06-27T17:17:53.455987
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/AS1T02_110T01_9000002376_16094cztM0_level2.evt modeM0/AS1T02_110T01_9000002376_16094cztM0_level2_quad_clean.evt
Size (bytes)459,812,160109,681,920
Size438.5 MB 104.6 MB
Events in quadrant A3,228,830753,517
Events in quadrant B3,557,971744,493
Events in quadrant C3,429,090689,264
Events in quadrant D3,285,245698,680

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136113
B0143872
C0140912
D0138182

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6250711.136000%
B6250751.200000%
C62501252.000000%
D6250671.072000%

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 7511 6251 0 0 0.00% 0.00%
B 7511 6252 6 6 0.08% 0.10%
C 7511 6251 41 41 0.55% 0.66%
D 7511 6251 26 26 0.35% 0.42%

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 12 96 17262 98.28 832 817 167.3
A 9 143 12075 67.28 832 817 167.3
A 0 226 7615 40.63 832 817 167.3
B 0 189 143802 936.7 816 799 152.7
B 7 220 67417 436.36 816 799 152.7
B 5 65 52612 339.39 816 799 152.7
C 3 233 274352 1540.08 769 774 177.6
C 14 238 120983 676.7 769 774 177.6
C 0 207 19997 108.21 769 774 177.6
D 15 0 85839 445.16 799 781 191.1
D 12 218 44315 227.84 799 781 191.1
D 2 152 38903 199.51 799 781 191.1

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