ASTROSAT CZTI

Data Quality Report

Orbit 29224

Creation date: 2024-06-27T20:01:42.532855
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_102T02_9000004200_29224cztM0_level2.evt modeM0/AS1A10_102T02_9000004200_29224cztM0_level2_quad_clean.evt
Size (bytes)540,696,960101,701,440
Size515.6 MB 97.0 MB
Events in quadrant A2,973,555700,951
Events in quadrant B3,568,679695,860
Events in quadrant C4,139,683655,522
Events in quadrant D5,305,752627,477

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122801
B0142631
C0158611
D0197531

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5723460.803774%
B57241051.834382%
C57243025.276031%
D57245529.643606%

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 7018 5724 0 0 0.00% 0.00%
B 7019 5725 36 36 0.51% 0.63%
C 7019 5725 100 100 1.42% 1.75%
D 7019 5725 446 446 6.35% 7.79%

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 16196 101.96 766 751 151.5
A 13 254 10841 66.61 766 751 151.5
A 3 137 6592 38.56 766 751 151.5
B 10 245 468072 3445.86 741 723 135.6
B 0 229 109798 804.23 741 723 135.6
B 10 246 46380 336.63 741 723 135.6
C 3 233 1208596 7377.93 716 721 163.7
C 14 238 120425 731.17 716 721 163.7
C 2 114 13547 78.34 716 721 163.7
D 1 52 2154382 12697.49 716 698 169.6
D 8 195 169276 993.89 716 698 169.6
D 13 104 63459 370.02 716 698 169.6

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