ASTROSAT CZTI

Data Quality Report

Orbit 30189

Creation date: 2024-06-27T20:12:01.508431
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/AS1A10_050T05_9000004342_30189cztM0_level2.evt modeM0/AS1A10_050T05_9000004342_30189cztM0_level2_quad_clean.evt
Size (bytes)1,252,379,520135,357,120
Size1.2 GB 129.1 MB
Events in quadrant A4,949,350897,811
Events in quadrant B7,980,650881,991
Events in quadrant C16,818,550749,687
Events in quadrant D7,480,753848,290

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0213882
B0314762
C0572602
D0293062

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02120
B02120
C02120
D02120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A104011141.096048%
B104021821.749664%
C10402407639.184772%
D104024093.931936%

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 11971 10401 0 0 0.00% 0.00%
B 11972 10402 5 5 0.04% 0.05%
C 11972 10402 2525 2525 21.09% 24.27%
D 11972 10402 261 261 2.18% 2.51%

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 8 192 27927 103.76 1273 1244 257.2
A 13 254 18951 68.86 1273 1244 257.2
A 3 137 13243 46.66 1273 1244 257.2
B 6 159 2960943 12085.2 1256 1223 244.9
B 0 230 56912 227.39 1256 1223 244.9
B 12 111 30336 118.87 1256 1223 244.9
C 3 233 12235269 46569.53 1116 1121 262.7
C 14 238 173531 656.28 1116 1121 262.7
C 15 208 26471 96.5 1116 1121 262.7
D 7 223 799559 2602.33 1219 1190 306.8
D 12 233 423264 1375.77 1219 1190 306.8
D 13 249 400317 1300.98 1219 1190 306.8

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