ASTROSAT CZTI

Data Quality Report

Orbit 19252

Creation date: 2024-06-27T18:00:40.641737
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/AS1A05_115T01_9000002848_19252cztM0_level2.evt modeM0/AS1A05_115T01_9000002848_19252cztM0_level2_quad_clean.evt
Size (bytes)479,280,960103,343,040
Size457.1 MB 98.6 MB
Events in quadrant A3,234,242677,869
Events in quadrant B3,253,297695,925
Events in quadrant C3,501,673672,226
Events in quadrant D4,094,201640,217

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136532
B0135932
C0144102
D0162602

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6352580.913098%
B6352871.369647%
C63521342.109572%
D63532834.454588%

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 7607 6353 2 2 0.03% 0.03%
B 7607 6353 2 2 0.03% 0.03%
C 7607 6353 7 7 0.09% 0.11%
D 7608 6354 202 202 2.66% 3.18%

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 12 96 25701 149.99 828 811 165.9
A 11 29 17485 100.48 828 811 165.9
A 0 226 7176 38.36 828 811 165.9
B 12 111 18415 112.86 828 807 156.0
B 11 111 16537 100.82 828 807 156.0
B 14 111 14843 89.96 828 807 156.0
C 14 238 125382 662.98 812 822 187.9
C 6 96 113888 601.81 812 822 187.9
C 3 233 92401 487.44 812 822 187.9
D 1 52 681315 3477.68 810 790 195.7
D 5 222 167284 850.83 810 790 195.7
D 7 238 113981 578.44 810 790 195.7

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