ASTROSAT CZTI

Data Quality Report

Orbit 30134

Creation date: 2024-06-27T20:11:20.218727
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/AS1A10_097T03_9000004336_30134cztM0_level2.evt modeM0/AS1A10_097T03_9000004336_30134cztM0_level2_quad_clean.evt
Size (bytes)310,561,92026,202,240
Size296.2 MB 25.0 MB
Events in quadrant A1,394,748174,179
Events in quadrant B1,798,443177,457
Events in quadrant C4,520,072121,781
Events in quadrant D1,549,544168,498

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A054161
B065871
C0148566
D060561

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A20761366.551060%
B2076803.853565%
C2075182087.710843%
D2075954.578313%

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 3201 2077 64 64 2.00% 3.08%
B 3201 2077 0 0 0.00% 0.00%
C 3199 2074 1406 1406 43.95% 67.79%
D 3200 2076 43 43 1.34% 2.07%

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 13 269537 4539.81 289 284 59.3
A 8 192 8426 137.28 289 284 59.3
A 13 254 3855 60.21 289 284 59.3
B 6 159 615606 10837.47 293 285 56.8
B 0 190 12560 216.2 293 285 56.8
B 4 171 12228 210.35 293 285 56.8
C 3 233 3740133 81387.37 191 193 46.0
C 14 238 29094 628.93 191 193 46.0
C 2 114 3307 67.77 191 193 46.0
D 8 195 105333 1379.97 284 278 76.1
D 13 249 94422 1236.64 284 278 76.1
D 1 52 82627 1081.71 284 278 76.1

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