ASTROSAT CZTI

Data Quality Report

Orbit 34090

Creation date: 2024-06-27T20:56:25.822981
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/AS1A05_208T01_9000004870_34090cztM0_level2.evt modeM0/AS1A05_208T01_9000004870_34090cztM0_level2_quad_clean.evt
Size (bytes)549,527,04065,295,360
Size524.1 MB 62.3 MB
Events in quadrant A2,556,639425,210
Events in quadrant B4,293,839431,069
Events in quadrant C3,105,391419,948
Events in quadrant D6,338,786340,212

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104923
B0160692
C0121172
D0223732

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A513680.155763%
B51364128.021807%
C5136851.654984%
D5136100019.470405%

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 7260 5137 0 0 0.00% 0.00%
B 7260 5137 282 282 3.88% 5.49%
C 7260 5137 78 78 1.07% 1.52%
D 7260 5137 1037 1037 14.28% 20.19%

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 19565 145.96 654 641 129.7
A 13 6 9729 70.09 654 641 129.7
A 13 254 7874 55.79 654 641 129.7
B 5 31 935452 7746.13 635 620 120.7
B 5 172 494214 4089.98 635 620 120.7
B 5 15 272808 2255.38 635 620 120.7
C 0 10 310283 2120.13 635 642 146.0
C 15 214 225978 1542.89 635 642 146.0
C 3 233 56085 379.62 635 642 146.0
D 12 16 1646624 11421.03 585 570 144.1
D 2 250 697261 4833.94 585 570 144.1
D 8 195 622641 4316.2 585 570 144.1

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