ASTROSAT CZTI

Data Quality Report

Orbit 17683

Creation date: 2024-06-27T17:39:30.222347
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/AS1T03_050T01_9000002620_17683cztM0_level2.evt modeM0/AS1T03_050T01_9000002620_17683cztM0_level2_quad_clean.evt
Size (bytes)115,496,64027,080,640
Size110.1 MB 25.8 MB
Events in quadrant A647,610185,253
Events in quadrant B1,342,686174,637
Events in quadrant C687,180181,925
Events in quadrant D725,003175,984

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027750
B049290
C028600
D030450

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A135900.000000%
B135921615.894040%
C135940.294334%
D135830.220913%

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 1359 1359 0 0 0.00% 0.00%
B 1359 1359 146 146 10.74% 10.74%
C 1359 1359 0 0 0.00% 0.00%
D 1358 1358 3 3 0.22% 0.22%

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 14 237 7071 191.84 166 163 36.0
A 0 226 1462 36.07 166 163 36.0
A 3 15 1331 32.44 166 163 36.0
B 10 245 676671 20844.89 161 157 32.5
B 0 189 10864 329.91 161 157 32.5
B 4 80 8411 254.32 161 157 32.5
C 3 233 31622 797.08 161 162 39.5
C 14 238 25136 632.75 161 162 39.5
C 5 218 1578 35.88 161 162 39.5
D 1 52 93250 2247.65 158 153 41.4
D 15 0 10285 244.62 158 153 41.4
D 13 232 10235 243.41 158 153 41.4

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