ASTROSAT CZTI

Data Quality Report

Orbit 04598

Creation date: 2024-06-27T14:44:24.502774
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/AS1G05_191T01_9000000572_04598cztM0_level2.evt modeM0/AS1G05_191T01_9000000572_04598cztM0_level2_quad_clean.evt
Size (bytes)233,706,24047,007,360
Size222.9 MB 44.8 MB
Events in quadrant A1,192,467325,883
Events in quadrant B1,538,580321,650
Events in quadrant C1,437,682315,673
Events in quadrant D2,732,348275,066

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053341
B063801
C059671
D098451

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A257440.155400%
B257460.233100%
C257430.116550%
D257449319.153069%

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 2574 2574 0 0 0.00% 0.00%
B 2574 2574 5 5 0.19% 0.19%
C 2574 2574 0 0 0.00% 0.00%
D 2574 2574 400 400 15.54% 15.54%

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 15 174 5972 89.97 305 300 63.0
A 4 2 4415 65.27 305 300 63.0
A 12 194 3122 44.76 305 300 63.0
B 10 16 165492 2734.38 309 302 60.4
B 4 48 71733 1182.39 309 302 60.4
B 4 216 35888 589.05 309 302 60.4
C 14 48 241035 3321.94 302 304 72.5
C 9 247 9878 132.12 302 304 72.5
C 14 67 5411 70.47 302 304 72.5
D 13 235 1405344 20395.3 277 270 68.9
D 7 223 183993 2666.82 277 270 68.9
D 2 136 41484 598.24 277 270 68.9

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