ASTROSAT CZTI

Data Quality Report

Orbit 10574

Creation date: 2024-06-27T16:00:58.806301
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/AS1G07_004T01_9000001532_10574cztM0_level2.evt modeM0/AS1G07_004T01_9000001532_10574cztM0_level2_quad_clean.evt
Size (bytes)1,164,375,360176,221,440
Size1.1 GB 168.1 MB
Events in quadrant A7,055,6161,073,178
Events in quadrant B10,977,3371,055,676
Events in quadrant C6,794,1491,103,434
Events in quadrant D9,394,0791,040,118

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0316012
B0428742
C0312842
D0382082

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03140
B03140
C03140
D03140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A154151460.947129%
B1541511417.401881%
C15415980.635744%
D154151561.012001%

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 16425 15417 15 15 0.09% 0.10%
B 16425 15417 819 819 4.99% 5.31%
C 16425 15417 2 2 0.01% 0.01%
D 16425 15417 46 46 0.28% 0.30%

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 208969 576.1 1764 1721 359.7
A 1 162 29396 76.93 1764 1721 359.7
A 0 226 16255 40.4 1764 1721 359.7
B 4 239 3782071 11418.57 1739 1696 331.1
B 11 51 196420 588.16 1739 1696 331.1
B 0 214 97372 288.99 1739 1696 331.1
C 14 234 28287 66.06 1729 1738 401.9
C 4 175 12774 27.46 1729 1738 401.9
C 13 61 12656 27.17 1729 1738 401.9
D 2 16 1725002 4180.33 1715 1665 412.2
D 8 195 463275 1119.74 1715 1665 412.2
D 1 52 258588 623.22 1715 1665 412.2

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