ASTROSAT CZTI

Data Quality Report

Orbit 23202

Creation date: 2024-06-27T18:51:13.892111
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_175T01_9000003428_23202cztM0_level2.evt modeM0/AS1T03_175T01_9000003428_23202cztM0_level2_quad_clean.evt
Size (bytes)532,013,76067,818,240
Size507.4 MB 64.7 MB
Events in quadrant A3,588,906404,155
Events in quadrant B3,633,243410,837
Events in quadrant C4,049,712395,096
Events in quadrant D4,402,584392,708

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148892
B0150012
C0163332
D0175672

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6456941.456010%
B64561061.641884%
C64562533.918835%
D64562664.120198%

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 7751 6456 0 0 0.00% 0.00%
B 7751 6456 1 1 0.01% 0.02%
C 7751 6456 50 50 0.65% 0.77%
D 7751 6456 109 109 1.41% 1.69%

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 12 227 10701 53.36 927 912 183.4
A 13 254 9590 47.3 927 912 183.4
A 0 226 8173 39.58 927 912 183.4
B 0 190 55935 324.31 916 896 169.7
B 12 111 19248 108.14 916 896 169.7
B 11 111 17421 97.37 916 896 169.7
C 0 10 312730 1531.29 894 904 203.6
C 14 238 143669 701.08 894 904 203.6
C 7 247 80172 389.26 894 904 203.6
D 1 52 339270 1548.34 909 885 218.5
D 12 233 338083 1542.91 909 885 218.5
D 7 238 183477 835.48 909 885 218.5

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