ASTROSAT CZTI

Data Quality Report

Orbit 37369

Creation date: 2024-06-27T21:39:07.039563
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/AS1T05_048T01_9000005318_37369cztM0_level2.evt modeM0/AS1T05_048T01_9000005318_37369cztM0_level2_quad_clean.evt
Size (bytes)1,088,913,600120,303,360
Size1.0 GB 114.7 MB
Events in quadrant A5,178,389767,144
Events in quadrant B6,828,326752,944
Events in quadrant C5,281,711771,855
Events in quadrant D14,973,857614,551

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0222363
B0272132
C0224422
D0517062

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02140
B02140
C02140
D02140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10628110.103500%
B106283573.359052%
C10628530.498683%
D10628267725.188182%

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 13404 10630 3 3 0.02% 0.03%
B 13404 10630 277 277 2.07% 2.61%
C 13404 10630 46 46 0.34% 0.43%
D 13404 10630 2986 2986 22.28% 28.09%

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 10 83 486753 2013.88 1189 1165 241.1
A 13 248 35615 142.87 1189 1165 241.1
A 13 6 28195 112.1 1189 1165 241.1
B 4 171 631878 2801.11 1175 1146 225.2
B 5 172 521374 2310.36 1175 1146 225.2
B 15 35 395247 1750.22 1175 1146 225.2
C 15 214 444294 1647.28 1158 1167 269.0
C 14 254 118209 435.09 1158 1167 269.0
C 0 10 110188 405.27 1158 1167 269.0
D 12 235 8676154 33261.18 1071 1040 260.8
D 2 249 987291 3781.37 1071 1040 260.8
D 12 227 417244 1595.76 1071 1040 260.8

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