ASTROSAT CZTI

Data Quality Report

Orbit 10586

Creation date: 2024-06-27T16:01:09.342726
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/AS1T01_191T01_9000001536_10586cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10586cztM0_level2_quad_clean.evt
Size (bytes)544,973,760112,158,720
Size519.7 MB 107.0 MB
Events in quadrant A3,333,633738,158
Events in quadrant B4,482,026731,719
Events in quadrant C3,349,203741,695
Events in quadrant D4,862,631695,546

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144183
B0177832
C0146602
D0193262

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70281462.077405%
B70283284.667046%
C70281311.863973%
D70282824.012521%

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 7263 7030 0 0 0.00% 0.00%
B 7263 7030 100 100 1.38% 1.42%
C 7263 7030 17 17 0.23% 0.24%
D 7263 7030 165 165 2.27% 2.35%

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 13 251 51891 291.07 845 829 175.4
A 1 162 17818 96.84 845 829 175.4
A 0 226 7921 40.43 845 829 175.4
B 4 239 906202 5584.81 838 819 162.1
B 0 219 111760 684.33 838 819 162.1
B 0 168 76391 466.16 838 819 162.1
C 4 254 82572 424.19 825 835 192.7
C 14 234 44979 229.09 825 835 192.7
C 13 61 6136 27.51 825 835 192.7
D 1 52 577059 2859.78 814 792 201.5
D 8 195 506981 2512.01 814 792 201.5
D 2 16 425873 2109.5 814 792 201.5

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