ASTROSAT CZTI

Data Quality Report

Orbit 05754

Creation date: 2024-06-27T14:58:43.637718
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/AS1A02_149T01_9000000740_05754cztM0_level2.evt modeM0/AS1A02_149T01_9000000740_05754cztM0_level2_quad_clean.evt
Size (bytes)858,006,720147,283,200
Size818.3 MB 140.5 MB
Events in quadrant A5,971,616889,472
Events in quadrant B6,584,851888,014
Events in quadrant C5,877,285908,675
Events in quadrant D6,660,084865,644

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02682
B02680
C02680
D02680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02721254
B02839486
C02699260
D02891469

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A131671421.078454%
B131552281.733181%
C13163730.554585%
D131641521.154664%

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 14826 13195 3 3 0.02% 0.02%
B 14826 13193 56 56 0.38% 0.42%
C 14826 13194 0 0 0.00% 0.00%
D 14826 13195 56 56 0.38% 0.42%

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 15 236 31558 95.07 1538 1503 316.2
A 15 174 15676 44.83 1538 1503 316.2
A 12 194 15153 43.18 1538 1503 316.2
B 10 245 236432 783.61 1547 1509 299.8
B 15 204 117624 387.31 1547 1509 299.8
B 0 219 108033 355.32 1547 1509 299.8
C 13 61 12090 30.26 1501 1507 349.7
C 14 67 8129 18.94 1501 1507 349.7
C 8 128 7177 16.21 1501 1507 349.7
D 10 15 298668 808.68 1496 1450 367.5
D 8 195 183457 495.21 1496 1450 367.5
D 12 221 146714 395.24 1496 1450 367.5

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