ASTROSAT CZTI

Data Quality Report

Orbit 23365

Creation date: 2024-06-27T18:53:22.629793
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/AS1A07_138T06_9000003456_23365cztM0_level2.evt modeM0/AS1A07_138T06_9000003456_23365cztM0_level2_quad_clean.evt
Size (bytes)594,820,80081,423,360
Size567.3 MB 77.7 MB
Events in quadrant A3,299,877506,859
Events in quadrant B3,410,889512,296
Events in quadrant C7,216,930473,631
Events in quadrant D3,619,730492,286

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141231
B0144021
C0263831
D0152251

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6893510.739881%
B6894791.145924%
C689470410.211778%
D6894811.174935%

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 7613 6894 0 0 0.00% 0.00%
B 7614 6895 8 8 0.11% 0.12%
C 7614 6894 263 263 3.45% 3.81%
D 7614 6894 38 38 0.50% 0.55%

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 11740 63.49 855 835 171.8
A 0 226 7503 38.82 855 835 171.8
A 3 137 7458 38.56 855 835 171.8
B 5 172 25026 152.45 846 826 158.7
B 0 190 21343 129.25 846 826 158.7
B 12 111 18938 114.1 846 826 158.7
C 0 239 3936951 21207.04 799 803 185.6
C 14 238 126848 679.1 799 803 185.6
C 7 247 26940 140.82 799 803 185.6
D 1 52 198011 974.82 835 811 202.3
D 2 152 75378 368.61 835 811 202.3
D 13 249 72639 355.07 835 811 202.3

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