ASTROSAT CZTI

Data Quality Report

Orbit 28366

Creation date: 2024-06-27T19:51:00.245718
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_101T02_9000004084_28366cztM0_level2.evt modeM0/AS1A10_101T02_9000004084_28366cztM0_level2_quad_clean.evt
Size (bytes)481,245,12090,190,080
Size459.0 MB 86.0 MB
Events in quadrant A3,038,146593,614
Events in quadrant B3,201,884598,411
Events in quadrant C2,989,849562,790
Events in quadrant D4,921,734541,515

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130690
B0135270
C0128850
D0188880

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6233590.946575%
B6234911.459737%
C6234791.267244%
D62342243.593199%

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 7238 6233 1 1 0.01% 0.02%
B 7239 6234 19 19 0.26% 0.30%
C 7239 6235 0 0 0.00% 0.00%
D 7239 6235 170 170 2.35% 2.73%

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 47438 298.18 775 757 156.6
A 13 254 11072 65.89 775 757 156.6
A 3 137 7383 42.32 775 757 156.6
B 10 246 91736 617.09 764 745 147.5
B 10 245 81182 545.51 764 745 147.5
B 0 230 27916 184.27 764 745 147.5
C 14 238 118932 681.26 734 737 173.5
C 3 233 12737 69.17 734 737 173.5
C 13 61 5068 24.96 734 737 173.5
D 1 52 1626127 9159.14 738 718 177.5
D 8 195 299337 1682.71 738 718 177.5
D 13 104 82818 462.63 738 718 177.5

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