ASTROSAT CZTI

Data Quality Report

Orbit 23606

Creation date: 2024-06-27T18:56:43.854989
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/AS1T03_178T01_9000003488_23606cztM0_level2.evt modeM0/AS1T03_178T01_9000003488_23606cztM0_level2_quad_clean.evt
Size (bytes)469,272,96096,192,000
Size447.5 MB 91.7 MB
Events in quadrant A3,154,466621,187
Events in quadrant B3,637,711645,750
Events in quadrant C3,289,752614,977
Events in quadrant D3,693,494582,888

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134322
B0147923
C0135882
D0151732

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6423440.685038%
B64221312.039863%
C6422761.183432%
D64221121.744005%

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 8738 6424 0 0 0.00% 0.00%
B 8737 6423 62 62 0.71% 0.97%
C 8737 6422 5 5 0.06% 0.08%
D 8737 6423 79 79 0.90% 1.23%

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 13 254 10134 56.83 818 802 164.2
A 3 137 7142 38.61 818 802 164.2
A 0 226 6971 37.57 818 802 164.2
B 3 64 340253 2169.19 825 805 156.5
B 14 207 32832 204.66 825 805 156.5
B 0 189 31029 193.14 825 805 156.5
C 14 238 126662 676.61 797 805 186.0
C 0 10 45055 237.89 797 805 186.0
C 13 61 5554 25.53 797 805 186.0
D 1 52 671546 3527.19 787 767 190.2
D 9 85 32779 168.33 787 767 190.2
D 2 234 25206 128.51 787 767 190.2

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