ASTROSAT CZTI

Data Quality Report

Orbit 33243

Creation date: 2024-06-27T20:46:33.487512
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_046T01_9000004776_33243cztM0_level2.evt modeM0/AS1A11_046T01_9000004776_33243cztM0_level2_quad_clean.evt
Size (bytes)111,283,20021,677,760
Size106.1 MB 20.7 MB
Events in quadrant A974,122135,998
Events in quadrant B562,631148,375
Events in quadrant C543,201148,080
Events in quadrant D1,206,905133,784

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037022
B024341
C024621
D043981

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A118419616.554054%
B118450.422297%
C118470.591216%
D118413111.064189%

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 2648 1185 150 150 5.66% 12.66%
B 2648 1185 1 1 0.04% 0.08%
C 2648 1185 4 4 0.15% 0.34%
D 2648 1184 94 94 3.55% 7.94%

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 15 169 496638 18608.63 122 120 26.7
A 13 6 2496 89.05 122 120 26.7
A 13 254 1853 64.95 122 120 26.7
B 5 172 15147 544.76 134 130 27.6
B 4 170 4943 174.6 134 130 27.6
B 0 183 4339 152.69 134 130 27.6
C 0 10 29244 904.71 130 131 32.2
C 14 254 3244 96.74 130 131 32.2
C 14 67 1289 35.99 130 131 32.2
D 8 195 424170 13024.62 121 117 32.6
D 12 3 137198 4210.39 121 117 32.6
D 13 249 105716 3243.43 121 117 32.6

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