ASTROSAT CZTI

Data Quality Report

Orbit 37603

Creation date: 2024-06-27T21:42:04.409441
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/AS1T05_053T01_9000005338_37603cztM0_level2.evt modeM0/AS1T05_053T01_9000005338_37603cztM0_level2_quad_clean.evt
Size (bytes)496,434,24079,652,160
Size473.4 MB 76.0 MB
Events in quadrant A3,224,496520,178
Events in quadrant B3,320,419512,760
Events in quadrant C2,806,525520,280
Events in quadrant D5,302,346465,944

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132323
B0136892
C0119002
D0196652

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5614290.516566%
B56141432.547203%
C5614200.356252%
D561462511.132882%

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 7318 5615 9 9 0.12% 0.16%
B 7317 5613 109 109 1.49% 1.94%
C 7317 5613 14 14 0.19% 0.25%
D 7317 5613 646 646 8.83% 11.51%

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 10 83 349239 2650.04 649 636 131.5
A 6 10 269951 2047.3 649 636 131.5
A 9 143 49829 373.96 649 636 131.5
B 5 172 411210 3354.76 635 619 122.4
B 0 189 79036 640.71 635 619 122.4
B 4 80 60816 491.84 635 619 122.4
C 15 214 245336 1669.3 623 625 146.6
C 0 10 74423 503.42 623 625 146.6
C 15 208 21863 144.88 623 625 146.6
D 2 249 1072186 7211.9 601 582 148.6
D 12 233 571166 3840.04 601 582 148.6
D 10 204 395442 2657.41 601 582 148.6

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