ASTROSAT CZTI

Data Quality Report

Orbit 28296

Creation date: 2024-06-27T19:50:09.793945
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_102T06_9000004078_28296cztM0_level2.evt modeM0/AS1A10_102T06_9000004078_28296cztM0_level2_quad_clean.evt
Size (bytes)151,191,36018,645,120
Size144.2 MB 17.8 MB
Events in quadrant A902,030114,698
Events in quadrant B954,187117,002
Events in quadrant C1,025,975111,618
Events in quadrant D1,584,874101,888

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037140
B039100
C041580
D059420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A161280.496278%
B1612150.930521%
C1612472.915633%
D16121539.491315%

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 1612 1612 2 2 0.12% 0.12%
B 1612 1612 5 5 0.31% 0.31%
C 1612 1612 2 2 0.12% 0.12%
D 1612 1612 108 108 6.70% 6.70%

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 15 174 13734 283.16 228 223 47.7
A 8 192 6863 139.16 228 223 47.7
A 13 254 3393 66.44 228 223 47.7
B 10 245 28262 623.61 229 223 45.0
B 15 32 10124 220.21 229 223 45.0
B 5 172 9004 195.3 229 223 45.0
C 3 233 101746 1848.11 227 229 54.9
C 14 238 37343 675.66 227 229 54.9
C 13 61 1616 25.25 227 229 54.9
D 1 52 461672 8628.95 218 211 53.5
D 8 195 147762 2759.09 218 211 53.5
D 12 250 80580 1502.84 218 211 53.5

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