ASTROSAT CZTI

Data Quality Report

Orbit 11336

Creation date: 2024-06-27T16:11:29.234869
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_062T01_9000001660_11336cztM0_level2.evt modeM0/AS1G08_062T01_9000001660_11336cztM0_level2_quad_clean.evt
Size (bytes)674,213,76077,912,640
Size643.0 MB 74.3 MB
Events in quadrant A4,072,831495,149
Events in quadrant B4,798,973474,149
Events in quadrant C3,244,468502,398
Events in quadrant D7,818,594389,470

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167573
B0191202
C0146692
D0281722

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71431442.015960%
B71435437.601848%
C7143470.657987%
D7143173824.331513%

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 7743 7144 30 30 0.39% 0.42%
B 7743 7144 271 271 3.50% 3.79%
C 7743 7144 2 2 0.03% 0.03%
D 7743 7144 1411 1411 18.22% 19.75%

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 13 251 496529 2902.33 836 819 170.8
A 15 174 217207 1266.93 836 819 170.8
A 1 162 38086 218.19 836 819 170.8
B 4 239 1284199 8209.98 817 796 156.3
B 3 64 219392 1398.37 817 796 156.3
B 3 189 37313 233.6 817 796 156.3
C 14 234 22820 114.41 826 828 192.2
C 13 61 6041 27.12 826 828 192.2
C 12 4 3005 11.33 826 828 192.2
D 1 52 3605435 20424.49 722 700 176.5
D 10 253 972188 5504.47 722 700 176.5
D 2 120 215163 1215.15 722 700 176.5

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