ASTROSAT CZTI

Data Quality Report

Orbit 05282

Creation date: 2024-06-27T14:53:27.691828
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_240T02_9000000670_05282cztM0_level2.evt modeM0/AS1G05_240T02_9000000670_05282cztM0_level2_quad_clean.evt
Size (bytes)523,540,80084,101,760
Size499.3 MB 80.2 MB
Events in quadrant A2,947,292541,234
Events in quadrant B3,012,350561,152
Events in quadrant C2,889,495540,908
Events in quadrant D6,590,966475,927

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128243
B0128892
C0126192
D0238522

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6123480.783929%
B6123290.473624%
C6123110.179650%
D6123115418.846970%

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 7433 6124 9 9 0.12% 0.15%
B 7433 6124 5 5 0.07% 0.08%
C 7433 6124 0 0 0.00% 0.00%
D 7433 6124 948 948 12.75% 15.48%

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 50 95956 638.84 738 722 149.1
A 13 251 7986 48.73 738 722 149.1
A 0 226 7258 43.84 738 722 149.1
B 10 16 36806 251.76 758 741 143.3
B 4 48 15508 103.09 758 741 143.3
B 15 204 13530 89.28 758 741 143.3
C 1 16 12179 67.78 732 738 168.8
C 12 4 6356 33.28 732 738 168.8
C 13 61 6004 31.2 732 738 168.8
D 11 145 2959237 18144.28 660 643 163.1
D 2 136 975871 5980.82 660 643 163.1
D 8 195 64273 390.23 660 643 163.1

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