ASTROSAT CZTI

Data Quality Report

Orbit 14308

Creation date: 2024-06-27T16:53:18.732956
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_078T01_9000002110_14308cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14308cztM0_level2_quad_clean.evt
Size (bytes)738,668,160132,863,040
Size704.4 MB 126.7 MB
Events in quadrant A4,981,273841,953
Events in quadrant B5,202,570835,802
Events in quadrant C5,560,243827,224
Events in quadrant D5,931,165807,795

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02100
B02100
C02100
D02100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216143
B0222152
C0224992
D0248182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10264670.652767%
B102641111.081450%
C10264590.574825%
D102643423.332034%

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 11255 10267 2 2 0.02% 0.02%
B 11255 10267 16 16 0.14% 0.16%
C 11255 10267 1 1 0.01% 0.01%
D 11255 10267 219 219 1.95% 2.13%

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 133592 534.67 1217 1192 247.6
A 12 189 103820 414.44 1217 1192 247.6
A 13 210 41793 163.96 1217 1192 247.6
B 0 229 239714 1023.7 1212 1185 233.0
B 10 245 90303 382.47 1212 1185 233.0
B 0 189 41359 172.42 1212 1185 233.0
C 3 233 948161 3446.8 1180 1188 274.7
C 13 61 8518 26.68 1180 1188 274.7
C 3 232 5741 16.57 1180 1188 274.7
D 5 222 830009 2970.89 1169 1141 279.0
D 12 110 396150 1415.82 1169 1141 279.0
D 10 70 103079 365.37 1169 1141 279.0

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