ASTROSAT CZTI

Data Quality Report

Orbit 07834

Creation date: 2024-06-27T15:24:36.946799
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/AS1G06_077T02_9000001076_07834cztM0_level2.evt modeM0/AS1G06_077T02_9000001076_07834cztM0_level2_quad_clean.evt
Size (bytes)433,653,12075,836,160
Size413.6 MB 72.3 MB
Events in quadrant A2,737,453468,052
Events in quadrant B2,934,782478,445
Events in quadrant C4,105,306479,489
Events in quadrant D2,952,942456,245

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122202
B0125201
C0161951
D0128461

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59261622.733716%
B59261843.104961%
C59261332.244347%
D59261342.261222%

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 6196 5928 0 0 0.00% 0.00%
B 6196 5928 25 25 0.40% 0.42%
C 6196 5928 0 0 0.00% 0.00%
D 6196 5928 12 12 0.19% 0.20%

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 14 9028 58.16 707 693 143.3
A 0 226 6540 40.8 707 693 143.3
A 12 194 6412 39.91 707 693 143.3
B 4 239 77109 557.31 712 695 137.1
B 0 219 29565 210.56 712 695 137.1
B 10 16 21050 148.46 712 695 137.1
C 1 16 1355751 8358.25 696 700 162.1
C 9 243 12971 75.69 696 700 162.1
C 9 54 7355 41.05 696 700 162.1
D 2 14 56222 322.33 695 671 172.3
D 2 152 52057 298.16 695 671 172.3
D 12 33 48229 275.95 695 671 172.3

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