ASTROSAT CZTI

Data Quality Report

Orbit 08390

Creation date: 2024-06-27T15:32:10.914977
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/AS1G07_084T03_9000001174_08390cztM0_level2.evt modeM0/AS1G07_084T03_9000001174_08390cztM0_level2_quad_clean.evt
Size (bytes)85,245,12023,618,880
Size81.3 MB 22.5 MB
Events in quadrant A599,113155,923
Events in quadrant B636,976158,954
Events in quadrant C613,678158,276
Events in quadrant D646,599150,280

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A025221
B026161
C025361
D026991

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1210131.074380%
B1210262.148760%
C1210120.991736%
D1210100.826446%

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 2105 1211 0 0 0.00% 0.00%
B 2105 1211 0 0 0.00% 0.00%
C 2105 1211 0 0 0.00% 0.00%
D 2105 1211 2 2 0.10% 0.17%

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 0 226 1419 37.12 155 151 34.2
A 12 194 1417 37.06 155 151 34.2
A 5 16 588 12.79 155 151 34.2
B 0 214 7366 220.68 158 154 32.7
B 4 48 5037 149.41 158 154 32.7
B 4 81 3579 104.8 158 154 32.7
C 1 16 3806 94.32 156 156 38.7
C 13 61 1207 27.16 156 156 38.7
C 3 202 375 5.66 156 156 38.7
D 13 105 15714 386.49 154 149 40.3
D 7 71 14452 355.15 154 149 40.3
D 2 14 12117 297.17 154 149 40.3

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