ASTROSAT CZTI

Data Quality Report

Orbit 10013

Creation date: 2024-06-27T15:53:43.856175
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/AS1G07_022T02_9000001434_10013cztM0_level2.evt modeM0/AS1G07_022T02_9000001434_10013cztM0_level2_quad_clean.evt
Size (bytes)598,023,360107,375,040
Size570.3 MB 102.4 MB
Events in quadrant A3,504,636701,263
Events in quadrant B3,425,048716,456
Events in quadrant C3,108,874720,524
Events in quadrant D7,613,315640,625

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01492713
B0147327
C01400212
D02746723

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6787991.458671%
B6789701.031080%
C6786280.412614%
D6786107515.841438%

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 7911 6791 18 18 0.23% 0.27%
B 7911 6791 11 11 0.14% 0.16%
C 7911 6790 0 0 0.00% 0.00%
D 7911 6791 1221 1221 15.43% 17.98%

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 8 15 157366 945.37 818 801 165.6
A 15 239 130378 782.41 818 801 165.6
A 15 174 38394 226.99 818 801 165.6
B 5 255 78645 497.76 820 802 156.4
B 0 214 38136 238.73 820 802 156.4
B 0 219 32321 201.54 820 802 156.4
C 9 221 7630 37.36 792 797 182.9
C 14 67 5972 28.3 792 797 182.9
C 13 61 5950 28.18 792 797 182.9
D 2 16 3111353 16368.33 766 745 190.0
D 8 195 537520 2824.56 766 745 190.0
D 10 119 522693 2746.54 766 745 190.0

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