ASTROSAT CZTI

Data Quality Report

Orbit 33538

Creation date: 2024-06-27T20:49:54.050243
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_060T01_9000004808_33538cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33538cztM0_level2_quad_clean.evt
Size (bytes)475,801,92071,383,680
Size453.8 MB 68.1 MB
Events in quadrant A2,557,704462,830
Events in quadrant B2,958,789473,493
Events in quadrant C3,314,508448,727
Events in quadrant D5,223,390409,112

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106443
B0117832
C0129902
D0193082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0370
C0370
D0380

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A524660.114373%
B5246390.743424%
C52461021.944339%
D52463286.252383%

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 7279 5247 0 0 0.00% 0.00%
B 7279 5247 22 22 0.30% 0.42%
C 7279 5247 87 87 1.20% 1.66%
D 7279 5247 315 315 4.33% 6.00%

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 8294 58.36 661 650 131.0
A 3 137 6253 42.78 661 650 131.0
A 10 83 5889 40.0 661 650 131.0
B 5 172 124484 983.09 666 650 126.0
B 5 255 121047 955.81 666 650 126.0
B 0 229 49246 385.79 666 650 126.0
C 0 10 251193 1678.86 649 656 149.2
C 15 214 226032 1510.26 649 656 149.2
C 14 254 215476 1439.52 649 656 149.2
D 8 195 1546804 10191.78 626 611 151.7
D 2 250 702033 4623.45 626 611 151.7
D 13 249 239247 1572.98 626 611 151.7

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