ASTROSAT CZTI

Data Quality Report

Orbit 33333

Creation date: 2024-06-27T20:47:39.244838
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_071T01_9000004782_33333cztM0_level2.evt modeM0/AS1T04_071T01_9000004782_33333cztM0_level2_quad_clean.evt
Size (bytes)527,448,96058,222,080
Size503.0 MB 55.5 MB
Events in quadrant A2,511,024364,766
Events in quadrant B3,991,804343,516
Events in quadrant C3,693,623352,232
Events in quadrant D5,418,006330,136

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107383
B0152272
C0145582
D0199342

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5319100.188005%
B531956610.641098%
C53191162.180861%
D53192063.872908%

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 7051 5320 0 0 0.00% 0.00%
B 7051 5320 426 426 6.04% 8.01%
C 7051 5320 88 88 1.25% 1.65%
D 7051 5320 174 174 2.47% 3.27%

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 6 7497 52.97 648 635 129.6
A 13 254 6374 44.3 648 635 129.6
A 3 137 6188 42.86 648 635 129.6
B 5 172 1186690 9966.76 614 599 119.0
B 0 219 233071 1953.47 614 599 119.0
B 15 85 84391 704.11 614 599 119.0
C 10 49 607798 4208.56 619 625 144.3
C 15 214 250138 1729.47 619 625 144.3
C 0 207 129348 892.23 619 625 144.3
D 8 195 2184217 14430.49 615 598 151.3
D 12 6 289844 1911.49 615 598 151.3
D 13 249 171645 1130.37 615 598 151.3

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