ASTROSAT CZTI

Data Quality Report

Orbit 11592

Creation date: 2024-06-27T16:15:37.657169
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/AS1A04_130T04_9000001704_11592cztM0_level2.evt modeM0/AS1A04_130T04_9000001704_11592cztM0_level2_quad_clean.evt
Size (bytes)107,729,28030,870,720
Size102.7 MB 29.4 MB
Events in quadrant A839,217209,088
Events in quadrant B853,122212,185
Events in quadrant C671,919210,460
Events in quadrant D801,029199,195

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033682
B033561
C028511
D032591

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1387251.802451%
B1387342.451334%
C138720.144196%
D138770.504686%

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 1388 1388 3 3 0.22% 0.22%
B 1388 1388 18 18 1.30% 1.30%
C 1388 1388 0 0 0.00% 0.00%
D 1388 1388 3 3 0.22% 0.22%

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 5 88901 2345.53 180 177 37.8
A 1 162 20707 542.74 180 177 37.8
A 1 178 12136 316.15 180 177 37.8
B 4 239 120829 3443.64 178 174 35.0
B 3 64 16608 469.05 178 174 35.0
B 11 51 16223 458.06 178 174 35.0
C 12 4 1406 30.73 171 172 40.2
C 13 61 1235 26.47 171 172 40.2
C 14 67 532 8.96 171 172 40.2
D 2 120 49771 1202.23 171 168 41.3
D 8 195 42976 1037.54 171 168 41.3
D 2 136 25807 621.42 171 168 41.3

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