ASTROSAT CZTI

Data Quality Report

Orbit 11608

Creation date: 2024-06-27T16:15:51.287862
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/AS1C03_020T01_9000001706_11608cztM0_level2.evt modeM0/AS1C03_020T01_9000001706_11608cztM0_level2_quad_clean.evt
Size (bytes)592,862,40089,228,160
Size565.4 MB 85.1 MB
Events in quadrant A5,909,437557,030
Events in quadrant B4,762,280576,704
Events in quadrant C3,172,934578,665
Events in quadrant D3,683,263549,419

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0221903
B0183902
C0133862
D0148112

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A630669210.973676%
B63064427.009198%
C6306841.332065%
D63062053.250872%

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 7572 6308 350 350 4.62% 5.55%
B 7572 6308 202 202 2.67% 3.20%
C 7572 6308 0 0 0.00% 0.00%
D 7572 6308 61 61 0.81% 0.97%

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 8 5 2376860 14479.08 815 799 164.1
A 1 162 131281 795.12 815 799 164.1
A 1 178 75961 458.02 815 799 164.1
B 4 239 1193802 7600.54 833 817 157.0
B 3 64 67718 426.23 833 817 157.0
B 0 219 52441 328.9 833 817 157.0
C 13 61 5892 27.24 812 819 186.3
C 14 234 2930 11.33 812 819 186.3
C 12 4 2287 7.88 812 819 186.3
D 1 52 394030 2011.85 813 793 195.5
D 8 195 87904 445.67 813 793 195.5
D 13 104 48291 243.01 813 793 195.5

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