ASTROSAT CZTI

Data Quality Report

Orbit 13607

Creation date: 2024-06-27T16:43:27.294061
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/AS1G08_029T01_9000002010_13607cztM0_level2.evt modeM0/AS1G08_029T01_9000002010_13607cztM0_level2_quad_clean.evt
Size (bytes)641,934,72083,062,080
Size612.2 MB 79.2 MB
Events in quadrant A3,353,637557,094
Events in quadrant B3,781,085550,780
Events in quadrant C3,370,039539,298
Events in quadrant D8,499,060416,932

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137293
B0150432
C0137912
D0294062

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64521392.154371%
B64521973.053317%
C64521011.565406%
D6452192129.773714%

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 7603 6454 0 0 0.00% 0.00%
B 7603 6454 37 37 0.49% 0.57%
C 7603 6454 10 10 0.13% 0.15%
D 7603 6454 1882 1882 24.75% 29.16%

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 1 162 11678 61.33 864 847 176.6
A 2 250 10978 57.37 864 847 176.6
A 0 226 7802 39.38 864 847 176.6
B 0 219 166397 1024.09 848 827 161.7
B 0 182 102577 629.35 848 827 161.7
B 3 64 45606 276.97 848 827 161.7
C 3 233 105418 551.8 822 828 189.5
C 14 234 46585 241.4 822 828 189.5
C 0 207 6158 28.12 822 828 189.5
D 13 122 4739259 26202.74 752 731 180.8
D 8 195 477938 2638.82 752 731 180.8
D 5 222 365416 2016.61 752 731 180.8

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