ASTROSAT CZTI

Data Quality Report

Orbit 29011

Creation date: 2024-06-27T19:59:09.949774
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/AS1A10_103T04_9000004158_29011cztM0_level2.evt modeM0/AS1A10_103T04_9000004158_29011cztM0_level2_quad_clean.evt
Size (bytes)518,659,20097,421,760
Size494.6 MB 92.9 MB
Events in quadrant A3,345,484633,585
Events in quadrant B3,597,688639,253
Events in quadrant C3,425,732608,917
Events in quadrant D4,853,016570,287

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146602
B0153282
C0147262
D0192442

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7151530.741155%
B71521071.496085%
C7151911.272549%
D71513254.544819%

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 7681 7152 0 0 0.00% 0.00%
B 7682 7153 13 13 0.17% 0.18%
C 7681 7152 0 0 0.00% 0.00%
D 7681 7151 245 245 3.19% 3.43%

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 11529 61.59 865 848 173.4
A 3 137 8833 46.05 865 848 173.4
A 0 226 7338 37.43 865 848 173.4
B 4 80 123119 742.43 861 840 164.7
B 10 246 52249 312.14 861 840 164.7
B 0 190 24877 145.94 861 840 164.7
C 14 238 132880 666.17 836 840 198.2
C 2 114 16733 80.18 836 840 198.2
C 3 233 13710 64.93 836 840 198.2
D 1 52 1214056 6248.24 815 793 194.2
D 8 195 482165 2479.04 815 793 194.2
D 2 250 50595 256.48 815 793 194.2

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