ASTROSAT CZTI

Data Quality Report

Orbit 47338

Creation date: 2024-06-29T20:33:30.540129
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/AS1A13_037T01_9000006318_47338cztM0_level2.fits modeM0/AS1A13_037T01_9000006318_47338cztM0_level2_quad_clean.evt
Size (bytes)318,337,92042,989,760
Size303.6 MB 41.0 MB
Events in quadrant A4,809,907277,440
Events in quadrant B1,383,409316,163
Events in quadrant C1,614,834287,831
Events in quadrant D3,741,426206,288

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163920
B061650
C070020
D0131770

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A300156118.693769%
B300180.266578%
C3002842.798135%
D300278025.982678%

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 3001 3001 395 395 13.16% 13.16%
B 3001 3001 0 0 0.00% 0.00%
C 3002 3002 73 73 2.43% 2.43%
D 3001 3001 651 651 21.69% 21.69%

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 15 235 1951861 28934.48 317 310 67.4
A 10 83 1473602 21843.62 317 310 67.4
A 9 191 102607 1516.7 317 310 67.4
B 0 190 31597 481.57 322 312 65.0
B 4 171 29411 447.92 322 312 65.0
B 14 167 18422 278.76 322 312 65.0
C 0 207 373990 5020.34 308 308 74.4
C 3 233 37667 501.9 308 308 74.4
C 13 61 2077 23.76 308 308 74.4
D 6 112 1457383 20216.22 278 268 72.1
D 12 2 828906 11496.64 278 268 72.1
D 10 204 225756 3128.45 278 268 72.1

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