ASTROSAT CZTI

Data Quality Report

Orbit 33094

Creation date: 2024-06-27T20:45:09.347244
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/AS1A11_030T01_9000004760_33094cztM0_level2.evt modeM0/AS1A11_030T01_9000004760_33094cztM0_level2_quad_clean.evt
Size (bytes)631,022,40062,156,160
Size601.8 MB 59.3 MB
Events in quadrant A2,188,386433,413
Events in quadrant B2,677,308439,030
Events in quadrant C3,113,520403,616
Events in quadrant D10,808,615270,255

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A095962
B0110442
C0123142
D0353742

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A476080.168067%
B47601823.823529%
C47601593.340336%
D4760351273.781513%

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 6673 4761 0 0 0.00% 0.00%
B 6673 4761 103 103 1.54% 2.16%
C 6673 4761 133 133 1.99% 2.79%
D 6673 4761 3530 3530 52.90% 74.14%

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 13 254 8296 67.61 565 554 114.5
A 3 137 5248 40.99 565 554 114.5
A 0 226 4773 36.84 565 554 114.5
B 5 172 436675 4138.57 555 543 105.4
B 0 197 25897 240.59 555 543 105.4
B 0 189 16062 147.26 555 543 105.4
C 8 111 527784 4172.67 541 547 126.4
C 7 221 190143 1500.5 541 547 126.4
C 0 10 181786 1434.37 541 547 126.4
D 7 223 8136907 75377.12 412 405 107.9
D 8 195 475785 4403.95 412 405 107.9
D 2 250 253884 2348.25 412 405 107.9

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