ASTROSAT CZTI

Data Quality Report

Orbit 38315

Creation date: 2024-06-27T21:51:09.920367
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/AS1C07_001T12_9000005372_38315cztM0_level2.fits modeM0/AS1C07_001T12_9000005372_38315cztM0_level2_quad_clean.evt
Size (bytes)583,056,00083,309,760
Size556.0 MB 79.5 MB
Events in quadrant A2,969,148672,272
Events in quadrant B2,609,294680,710
Events in quadrant C2,735,872650,017
Events in quadrant D12,842,988137,307

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122333
B0113732
C0113012
D0418502

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5464150.274524%
B5464120.219619%
C5464220.402635%
D5464445081.442167%

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 7377 5465 5 5 0.07% 0.09%
B 7377 5465 4 4 0.05% 0.07%
C 7377 5465 14 14 0.19% 0.26%
D 7377 5465 4369 4369 59.22% 79.95%

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 418517 3303.77 628 617 126.5
A 12 189 79409 622.9 628 617 126.5
A 13 6 17466 133.2 628 617 126.5
B 15 35 61430 516.27 622 604 117.8
B 0 189 43215 361.67 622 604 117.8
B 15 85 15632 127.55 622 604 117.8
C 15 214 236274 1660.11 617 621 141.9
C 14 254 62603 436.65 617 621 141.9
C 0 10 10819 71.84 617 621 141.9
D 10 203 7474089 68093.6 445 432 109.8
D 12 235 2055402 18723.14 445 432 109.8
D 2 16 814432 7416.48 445 432 109.8

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