ASTROSAT CZTI

Data Quality Report

Orbit 33605

Creation date: 2024-06-27T20:50:42.724448
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/AS1T04_076T01_9000004810_33605cztM0_level2.evt modeM0/AS1T04_076T01_9000004810_33605cztM0_level2_quad_clean.evt
Size (bytes)1,002,389,760113,080,320
Size956.0 MB 107.8 MB
Events in quadrant A5,208,617684,540
Events in quadrant B9,987,282668,545
Events in quadrant C6,288,603679,083
Events in quadrant D8,147,656647,591

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02180
B02180
C02180
D02180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223593
B0366082
C0248362
D0315132

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10755290.269642%
B10755166215.453278%
C107551441.338912%
D107552702.510460%

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 13592 10757 15 15 0.11% 0.14%
B 13592 10757 1352 1352 9.95% 12.57%
C 13592 10757 127 127 0.93% 1.18%
D 13592 10757 235 235 1.73% 2.18%

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 15 169 249580 970.39 1276 1249 255.9
A 13 254 17705 64.3 1276 1249 255.9
A 7 191 16897 61.15 1276 1249 255.9
B 5 172 3412768 14794.26 1191 1159 230.6
B 5 255 1052305 4558.24 1191 1159 230.6
B 0 213 269924 1165.48 1191 1159 230.6
C 3 233 541210 1864.99 1239 1249 289.5
C 15 214 457914 1577.29 1239 1249 289.5
C 0 10 391373 1347.46 1239 1249 289.5
D 8 195 1624186 4927.26 1225 1199 329.4
D 2 250 362957 1098.27 1225 1199 329.4
D 12 235 299327 905.09 1225 1199 329.4

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