ASTROSAT CZTI

Data Quality Report

Orbit 03605

Creation date: 2024-06-27T14:31:31.341958
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/AS1G05_246T04_9000000472_03605cztM0_level2.evt modeM0/AS1G05_246T04_9000000472_03605cztM0_level2_quad_clean.evt
Size (bytes)406,848,96076,688,640
Size388.0 MB 73.1 MB
Events in quadrant A2,692,996485,146
Events in quadrant B3,354,927478,580
Events in quadrant C2,947,482477,401
Events in quadrant D2,920,801464,923

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121692
B0140231
C0128071
D0129531

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5961520.872337%
B5961410.687804%
C5961601.006543%
D59611041.744674%

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 7221 5963 0 0 0.00% 0.00%
B 7221 5963 0 0 0.00% 0.00%
C 7221 5963 22 22 0.30% 0.37%
D 7221 5963 46 46 0.64% 0.77%

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 0 226 7380 47.39 694 679 141.4
A 12 194 7346 47.15 694 679 141.4
A 3 1 4840 29.43 694 679 141.4
B 15 204 509279 3815.41 700 682 133.3
B 0 182 74529 553.99 700 682 133.3
B 7 252 14798 105.9 700 682 133.3
C 9 247 123374 772.15 680 683 158.9
C 1 16 97650 610.26 680 683 158.9
C 2 53 62395 388.38 680 683 158.9
D 13 223 159134 972.94 678 657 162.9
D 13 239 52594 318.86 678 657 162.9
D 10 172 44146 266.99 678 657 162.9

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
Veto Counter