ASTROSAT CZTI

Data Quality Report

Orbit 15403

Creation date: 2024-06-27T17:08:03.451026
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_072T01_9000002272_15403cztM0_level2.evt modeM0/AS1G08_072T01_9000002272_15403cztM0_level2_quad_clean.evt
Size (bytes)508,449,60095,495,040
Size484.9 MB 91.1 MB
Events in quadrant A3,370,285613,081
Events in quadrant B3,671,530620,610
Events in quadrant C3,510,101610,382
Events in quadrant D4,381,733570,531

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145752
B0152541
C0148091
D0175711

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6854610.889991%
B6854741.079662%
C6854190.277210%
D68542423.530785%

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 7740 6856 27 27 0.35% 0.39%
B 7740 6856 22 22 0.28% 0.32%
C 7740 6856 0 0 0.00% 0.00%
D 7740 6856 176 176 2.27% 2.57%

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 7 16 112201 658.06 830 815 169.3
A 9 143 30677 176.42 830 815 169.3
A 14 238 17701 99.76 830 815 169.3
B 10 16 178787 1118.94 829 809 159.1
B 0 190 84736 527.64 829 809 159.1
B 15 35 32861 201.51 829 809 159.1
C 7 247 211418 1144.08 796 801 184.1
C 3 233 186938 1011.1 796 801 184.1
C 13 61 5669 26.44 796 801 184.1
D 1 52 620196 3189.46 789 764 194.2
D 9 68 287969 1478.82 789 764 194.2
D 5 222 187341 960.69 789 764 194.2

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