ASTROSAT CZTI

Data Quality Report

Orbit 32036

Creation date: 2024-06-27T20:35:41.901236
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/AS1T04_046T01_9000004680_32036cztM0_level2.evt modeM0/AS1T04_046T01_9000004680_32036cztM0_level2_quad_clean.evt
Size (bytes)598,340,160108,872,640
Size570.6 MB 103.8 MB
Events in quadrant A3,206,724737,161
Events in quadrant B5,530,874712,120
Events in quadrant C3,970,152704,420
Events in quadrant D4,973,154690,048

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134218
B02100319
C0157281
D0190076

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6500841.292308%
B65013184.891555%
C65043174.873924%
D65022634.044909%

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 7303 6503 0 0 0.00% 0.00%
B 7304 6503 151 151 2.07% 2.32%
C 7304 6504 100 100 1.37% 1.54%
D 7304 6504 160 160 2.19% 2.46%

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 12570 71.54 827 811 164.4
A 13 6 11034 62.2 827 811 164.4
A 3 137 8080 44.22 827 811 164.4
B 6 159 1726819 11404.56 797 778 151.3
B 5 172 361129 2380.97 797 778 151.3
B 10 245 163762 1076.89 797 778 151.3
C 0 10 363682 2017.75 775 780 179.9
C 3 233 360624 2000.75 775 780 179.9
C 14 238 137097 757.93 775 780 179.9
D 8 195 1127015 6061.69 792 772 185.8
D 12 218 453477 2436.56 792 772 185.8
D 2 250 127513 682.15 792 772 185.8

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