ASTROSAT CZTI

Data Quality Report

Orbit 16011

Creation date: 2024-06-27T17:16:30.585134
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/AS1T02_090T01_9000002360_16011cztM0_level2.evt modeM0/AS1T02_090T01_9000002360_16011cztM0_level2_quad_clean.evt
Size (bytes)133,061,76021,055,680
Size126.9 MB 20.1 MB
Events in quadrant A931,196128,807
Events in quadrant B1,009,144130,856
Events in quadrant C957,395124,936
Events in quadrant D1,008,518122,181

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037331
B040521
C038351
D040611

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A177750.281373%
B1777140.787845%
C1777191.069218%
D1777140.787845%

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 1778 1778 0 0 0.00% 0.00%
B 1778 1778 4 4 0.22% 0.22%
C 1778 1778 0 0 0.00% 0.00%
D 1778 1778 6 6 0.34% 0.34%

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 14 235 6437 122.31 239 233 50.7
A 15 157 5478 103.4 239 233 50.7
A 0 226 2192 38.61 239 233 50.7
B 0 228 33148 701.49 240 235 46.9
B 4 216 18015 378.95 240 235 46.9
B 3 209 9756 202.92 240 235 46.9
C 14 238 36121 646.92 232 233 55.5
C 3 233 15500 275.21 232 233 55.5
C 13 61 1647 25.49 232 233 55.5
D 12 218 87423 1463.32 233 226 59.6
D 2 152 15281 252.65 233 226 59.6
D 2 234 6935 112.59 233 226 59.6

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