ASTROSAT CZTI

Data Quality Report

Orbit 05209

Creation date: 2024-06-27T14:52:46.621081
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/AS1T01_136T01_9000000662_05209cztM0_level2.evt modeM0/AS1T01_136T01_9000000662_05209cztM0_level2_quad_clean.evt
Size (bytes)190,699,20032,503,680
Size181.9 MB 31.0 MB
Events in quadrant A1,343,893196,215
Events in quadrant B1,386,469201,447
Events in quadrant C1,510,055199,161
Events in quadrant D1,343,483187,795

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A057532
B057971
C061441
D058421

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2789150.537827%
B2789170.609537%
C2789180.645393%
D2789110.394407%

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 4049 2790 0 0 0.00% 0.00%
B 4049 2790 0 0 0.00% 0.00%
C 4049 2790 0 0 0.00% 0.00%
D 4049 2790 6 6 0.15% 0.22%

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 0 50 4853 62.74 347 339 71.9
A 12 194 3349 41.84 347 339 71.9
A 0 226 3282 40.91 347 339 71.9
B 12 111 6099 83.98 355 347 68.5
B 4 48 6024 82.89 355 347 68.5
B 0 229 5312 72.49 355 347 68.5
C 1 16 163350 2023.89 344 346 80.5
C 13 61 2878 31.44 344 346 80.5
C 14 67 2107 21.86 344 346 80.5
D 2 206 33029 391.83 338 328 83.5
D 2 136 17517 205.96 338 328 83.5
D 8 195 7014 80.11 338 328 83.5

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