ASTROSAT CZTI

Data Quality Report

Orbit 24293

Creation date: 2024-06-27T19:04:27.256340
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_027T10_9000003592_24293cztM0_level2.evt modeM0/AS1A07_027T10_9000003592_24293cztM0_level2_quad_clean.evt
Size (bytes)695,710,08083,102,400
Size663.5 MB 79.3 MB
Events in quadrant A3,850,334506,406
Events in quadrant B3,910,652515,119
Events in quadrant C6,219,523482,234
Events in quadrant D6,559,175468,012

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163322
B0164322
C0241382
D0248712

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78393214.094910%
B78403664.668367%
C78405006.377551%
D78407018.941327%

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 7894 7839 0 0 0.00% 0.00%
B 7895 7840 2 2 0.03% 0.03%
C 7895 7840 15 15 0.19% 0.19%
D 7895 7840 357 357 4.52% 4.55%

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 11731 52.83 998 975 203.6
A 3 137 9207 40.43 998 975 203.6
A 0 226 8562 37.26 998 975 203.6
B 12 111 24195 120.8 990 962 192.3
B 11 111 21464 106.6 990 962 192.3
B 14 111 18741 92.44 990 962 192.3
C 7 247 2078771 9292.95 950 954 223.6
C 2 16 278919 1243.19 950 954 223.6
C 14 238 147511 655.47 950 954 223.6
D 1 52 2348065 9970.88 954 926 235.4
D 8 195 356951 1512.43 954 926 235.4
D 12 233 161519 682.22 954 926 235.4

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