ASTROSAT CZTI

Data Quality Report

Orbit 13097

Creation date: 2024-06-27T16:36:28.373751
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/AS1G08_037T01_9000001928_13097cztM0_level2.evt modeM0/AS1G08_037T01_9000001928_13097cztM0_level2_quad_clean.evt
Size (bytes)217,157,76042,344,640
Size207.1 MB 40.4 MB
Events in quadrant A1,538,262279,343
Events in quadrant B1,947,472279,547
Events in quadrant C1,212,108279,464
Events in quadrant D1,703,251260,154

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062890
B074400
C053030
D068370

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2554622.427565%
B25542449.553641%
C255440.156617%
D25541224.776821%

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 2555 2555 58 58 2.27% 2.27%
B 2555 2555 168 168 6.58% 6.58%
C 2555 2555 2 2 0.08% 0.08%
D 2555 2555 93 93 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 15 223 180784 2872.93 301 296 62.8
A 15 239 70206 1112.8 301 296 62.8
A 12 189 58866 932.29 301 296 62.8
B 0 85 368744 6475.2 295 290 56.9
B 4 239 327563 5751.49 295 290 56.9
B 3 64 60666 1061.05 295 290 56.9
C 15 208 17363 241.39 300 303 70.7
C 8 112 13090 180.93 300 303 70.7
C 12 4 4776 63.29 300 303 70.7
D 1 52 308628 4335.93 285 278 71.1
D 10 157 218274 3065.4 285 278 71.1
D 12 110 47976 670.72 285 278 71.1

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