ASTROSAT CZTI

Data Quality Report

Orbit 30613

Creation date: 2024-06-27T20:17:41.117028
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_021T09_9000004410_30613cztM0_level2.evt modeM0/AS1A10_021T09_9000004410_30613cztM0_level2_quad_clean.evt
Size (bytes)587,646,72072,224,640
Size560.4 MB 68.9 MB
Events in quadrant A3,720,079455,841
Events in quadrant B5,255,674448,611
Events in quadrant C3,954,650428,620
Events in quadrant D4,444,424418,014

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149102
B0195872
C0158052
D0176552

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62381392.228278%
B62371382.212602%
C62373074.922238%
D62372163.463203%

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 7513 6239 49 49 0.65% 0.79%
B 7512 6238 2 2 0.03% 0.03%
C 7512 6238 57 57 0.76% 0.91%
D 7512 6238 140 140 1.86% 2.24%

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 0 13 281277 1614.78 887 873 173.6
A 8 192 21179 116.94 887 873 173.6
A 13 254 11203 59.49 887 873 173.6
B 6 159 1687114 10297.57 878 859 163.8
B 0 229 102934 623.35 878 859 163.8
B 12 111 18966 110.58 878 859 163.8
C 0 10 246888 1296.57 832 843 189.8
C 14 238 157969 828.0 832 843 189.8
C 3 233 123295 645.28 832 843 189.8
D 8 195 547572 2772.87 847 826 197.2
D 1 52 312770 1582.05 847 826 197.2
D 12 218 242396 1225.14 847 826 197.2

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