ASTROSAT CZTI

Data Quality Report

Orbit 28232

Creation date: 2024-06-27T19:49:27.524968
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/AS1C05_019T04_9000004074_28232cztM0_level2.evt modeM0/AS1C05_019T04_9000004074_28232cztM0_level2_quad_clean.evt
Size (bytes)486,941,760113,708,160
Size464.4 MB 108.4 MB
Events in quadrant A3,278,010753,131
Events in quadrant B3,524,413761,889
Events in quadrant C3,649,772718,406
Events in quadrant D3,801,780705,256

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147030
B0151940
C0153990
D0162440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7252630.868726%
B7253881.213291%
C72521351.861555%
D72521281.765030%

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 7632 7252 0 0 0.00% 0.00%
B 7633 7253 14 14 0.18% 0.19%
C 7632 7252 5 5 0.07% 0.07%
D 7632 7252 81 81 1.06% 1.12%

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 11302 61.45 848 829 170.4
A 3 137 8551 45.31 848 829 170.4
A 0 226 7120 36.91 848 829 170.4
B 10 245 135483 833.77 837 815 161.5
B 0 183 45859 278.88 837 815 161.5
B 0 230 25358 151.95 837 815 161.5
C 3 233 369592 1958.35 805 808 188.3
C 14 238 130779 690.18 805 808 188.3
C 5 37 8961 43.29 805 808 188.3
D 1 52 209938 1086.36 813 790 192.5
D 2 250 199354 1031.38 813 790 192.5
D 8 195 154769 799.8 813 790 192.5

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