ASTROSAT CZTI

Data Quality Report

Orbit 42043

Creation date: 2024-06-27T22:36:08.311580
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/AS1A12_037T01_9000005736_42043cztM0_level2.fits modeM0/AS1A12_037T01_9000005736_42043cztM0_level2_quad_clean.evt
Size (bytes)311,921,28089,167,680
Size297.5 MB 85.0 MB
Events in quadrant A3,430,778593,625
Events in quadrant B2,510,955613,332
Events in quadrant C2,550,583580,496
Events in quadrant D2,632,477534,093

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01153
B01142
C01142
D01131

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013657218
B011269151
C011085174
D011790181

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0370
C0370
D0370

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5407791.461069%
B5415220.406279%
C540030.055556%
D5405260.481036%

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 9222 5421 63 63 0.68% 1.16%
B 9222 5431 10 10 0.11% 0.18%
C 9223 5417 1 1 0.01% 0.02%
D 9223 5422 13 13 0.14% 0.24%

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 568806 4531.37 602 589 125.4
A 15 222 332919 2650.24 602 589 125.4
A 15 223 92859 735.83 602 589 125.4
B 0 190 49166 413.0 599 582 117.6
B 5 255 39204 328.32 599 582 117.6
B 4 36 28629 238.42 599 582 117.6
C 15 214 232145 1690.08 584 587 137.0
C 12 249 21081 149.58 584 587 137.0
C 15 111 14814 103.84 584 587 137.0
D 1 52 187663 1305.49 585 568 143.3
D 12 233 53646 370.36 585 568 143.3
D 13 249 50147 345.95 585 568 143.3

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