ASTROSAT CZTI

Data Quality Report

Orbit 47441

Creation date: 2024-07-06T18:57:14.342720
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_053T01_9000006326_47441cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47441cztM0_level2_quad_clean.evt
Size (bytes)949,066,560208,667,520
Size905.1 MB 199.0 MB
Events in quadrant A13,331,8251,353,772
Events in quadrant B6,756,5631,403,596
Events in quadrant C6,105,8541,385,741
Events in quadrant D7,909,0751,256,210

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0496303
B0290553
C0277453
D0327683

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02720
B02720
C02720
D02720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A132935424.077334%
B132943982.993832%
C132941981.489394%
D132944343.264631%

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 15338 13296 29 29 0.19% 0.22%
B 15339 13297 79 79 0.52% 0.59%
C 15339 13297 9 9 0.06% 0.07%
D 15339 13297 170 170 1.11% 1.28%

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 10 83 7362522 24101.17 1468 1433 305.4
A 9 191 248207 807.97 1468 1433 305.4
A 9 224 21674 66.27 1468 1433 305.4
B 5 32 544735 1889.96 1465 1415 287.5
B 4 171 99474 341.1 1465 1415 287.5
B 14 167 47627 160.75 1465 1415 287.5
C 3 233 244684 708.95 1464 1471 343.1
C 12 2 139962 403.69 1464 1471 343.1
C 13 61 9748 24.13 1464 1471 343.1
D 2 165 709124 1955.51 1458 1413 361.9
D 2 249 578494 1594.56 1458 1413 361.9
D 6 112 267207 734.43 1458 1413 361.9

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