ASTROSAT CZTI

Data Quality Report

Orbit 12369

Creation date: 2024-06-27T16:26:13.189750
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/AS1A04_212T01_9000001834_12369cztM0_level2.evt modeM0/AS1A04_212T01_9000001834_12369cztM0_level2_quad_clean.evt
Size (bytes)202,086,72040,752,000
Size192.7 MB 38.9 MB
Events in quadrant A2,005,135270,498
Events in quadrant B1,169,984278,651
Events in quadrant C1,226,435262,413
Events in quadrant D1,557,936253,745

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A075710
B050610
C053020
D061950

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2333833.557651%
B2333100.428633%
C2333602.571796%
D2333944.029147%

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 2333 2333 62 62 2.66% 2.66%
B 2333 2333 3 3 0.13% 0.13%
C 2334 2334 50 50 2.14% 2.14%
D 2334 2334 85 85 3.64% 3.64%

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 8 15 601183 11221.41 254 248 53.6
A 13 251 294105 5487.27 254 248 53.6
A 1 162 46175 857.61 254 248 53.6
B 4 239 107841 2127.5 259 252 50.6
B 10 245 14251 276.82 259 252 50.6
B 0 219 8617 165.41 259 252 50.6
C 15 208 232500 3889.77 250 252 59.7
C 14 234 10221 166.96 250 252 59.7
C 8 128 3145 48.45 250 252 59.7
D 1 52 402628 6427.53 249 241 62.6
D 13 104 85689 1364.9 249 241 62.6
D 5 222 74916 1192.82 249 241 62.6

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