ASTROSAT CZTI

Data Quality Report

Orbit 33297

Creation date: 2024-06-27T20:47:12.694781
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_072T01_9000004780_33297cztM0_level2.evt modeM0/AS1T04_072T01_9000004780_33297cztM0_level2_quad_clean.evt
Size (bytes)544,239,36075,764,160
Size519.0 MB 72.3 MB
Events in quadrant A2,664,325502,815
Events in quadrant B3,569,463486,678
Events in quadrant C3,325,726481,929
Events in quadrant D6,538,733425,681

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114543
B0141392
C0132452
D0234232

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5671100.176336%
B56711833.226944%
C5671721.269617%
D567170612.449303%

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 7163 5672 0 0 0.00% 0.00%
B 7163 5672 124 124 1.73% 2.19%
C 7163 5672 58 58 0.81% 1.02%
D 7163 5672 653 653 9.12% 11.51%

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 15 47 52445 389.05 666 653 133.1
A 15 169 28812 211.52 666 653 133.1
A 13 254 8030 55.41 666 653 133.1
B 5 172 687907 5548.31 656 639 123.9
B 0 219 99617 799.05 656 639 123.9
B 0 230 63404 506.7 656 639 123.9
C 1 23 273716 1836.26 642 647 148.7
C 15 214 257475 1727.05 642 647 148.7
C 0 10 168711 1130.15 642 647 148.7
D 8 195 1809846 11130.56 613 599 162.5
D 7 223 1367781 8410.96 613 599 162.5
D 2 249 224465 1377.23 613 599 162.5

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