ASTROSAT CZTI

Data Quality Report

Orbit 08580

Creation date: 2024-06-27T15:34:29.568409
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/AS1G07_060T01_9000001200_08580cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08580cztM0_level2_quad_clean.evt
Size (bytes)198,495,36032,060,160
Size189.3 MB 30.6 MB
Events in quadrant A1,377,282189,963
Events in quadrant B1,544,178190,684
Events in quadrant C1,356,261185,149
Events in quadrant D1,515,927178,953

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A063590
B066800
C063480
D065000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A316920.063111%
B3169160.504891%
C316900.000000%
D316910.031556%

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 3169 3169 0 0 0.00% 0.00%
B 3169 3169 13 13 0.41% 0.41%
C 3169 3169 0 0 0.00% 0.00%
D 3169 3169 0 0 0.00% 0.00%

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 15 174 3868 47.22 356 348 74.5
A 0 226 3295 39.54 356 348 74.5
A 12 194 3089 36.77 356 348 74.5
B 10 16 83472 1179.86 353 345 70.5
B 0 214 68081 961.41 353 345 70.5
B 10 252 16665 231.64 353 345 70.5
C 8 128 8189 96.66 343 344 81.2
C 8 112 3415 37.84 343 344 81.2
C 8 144 3270 36.05 343 344 81.2
D 1 52 97250 1138.4 341 332 85.1
D 8 195 80602 942.85 341 332 85.1
D 11 129 13564 155.42 341 332 85.1

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