ASTROSAT CZTI

Data Quality Report

Orbit 32216

Creation date: 2024-06-27T20:37:41.838772
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_057T01_9000004692_32216cztM0_level2.evt modeM0/AS1A10_057T01_9000004692_32216cztM0_level2_quad_clean.evt
Size (bytes)948,090,240122,304,960
Size904.2 MB 116.6 MB
Events in quadrant A5,196,034762,241
Events in quadrant B8,606,690754,843
Events in quadrant C5,390,588738,486
Events in quadrant D8,813,365722,979

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220763
B0329362
C0224742
D0331922

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02140
B02140
C02140
D02140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A104661251.194344%
B104662872.742213%
C104665705.446207%
D104666386.095930%

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 11986 10468 4 4 0.03% 0.04%
B 11986 10468 55 55 0.46% 0.53%
C 11986 10468 0 0 0.00% 0.00%
D 11986 10468 392 392 3.27% 3.74%

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 194934 750.88 1281 1253 257.9
A 0 6 43647 164.36 1281 1253 257.9
A 13 254 20068 72.94 1281 1253 257.9
B 6 159 2961643 12357.31 1264 1231 239.6
B 5 172 328065 1364.27 1264 1231 239.6
B 0 229 141745 586.53 1264 1231 239.6
C 14 238 339138 1183.37 1218 1226 285.5
C 14 254 202586 705.17 1218 1226 285.5
C 4 175 42826 145.68 1218 1226 285.5
D 5 172 1458941 4971.78 1223 1189 293.2
D 8 195 1266747 4316.29 1223 1189 293.2
D 2 250 729723 2484.72 1223 1189 293.2

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