ASTROSAT CZTI

Data Quality Report

Orbit 14193

Creation date: 2024-06-27T16:51:30.336956
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/AS1A04_229T01_9000002096_14193cztM0_level2.evt modeM0/AS1A04_229T01_9000002096_14193cztM0_level2_quad_clean.evt
Size (bytes)1,002,271,680187,536,960
Size955.8 MB 178.8 MB
Events in quadrant A6,784,6061,193,336
Events in quadrant B7,314,8691,249,646
Events in quadrant C6,994,0121,161,913
Events in quadrant D8,309,3101,103,976

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0293753
B0305953
C0294193
D0338503

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02840
B02840
C02840
D02840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A14077900.639341%
B140771841.307097%
C14077830.589614%
D140771701.207644%

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 15523 14081 14 14 0.09% 0.10%
B 15523 14081 32 32 0.21% 0.23%
C 15523 14081 9 9 0.06% 0.06%
D 15523 14081 115 115 0.74% 0.82%

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 12 189 64641 182.93 1697 1664 344.3
A 15 69 62822 177.64 1697 1664 344.3
A 9 143 52442 147.49 1697 1664 344.3
B 0 219 258603 791.85 1709 1668 324.5
B 4 48 115601 351.13 1709 1668 324.5
B 0 189 70305 211.53 1709 1668 324.5
C 3 233 518727 1359.61 1648 1660 380.3
C 14 234 34886 87.37 1648 1660 380.3
C 0 207 18980 45.54 1648 1660 380.3
D 8 195 621545 1599.3 1630 1588 387.6
D 10 199 464412 1193.94 1630 1588 387.6
D 12 110 390126 1002.31 1630 1588 387.6

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