ASTROSAT CZTI

Data Quality Report

Orbit 28113

Creation date: 2024-06-27T19:48:12.458745
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/AS1A10_024T01_9000004062_28113cztM0_level2.evt modeM0/AS1A10_024T01_9000004062_28113cztM0_level2_quad_clean.evt
Size (bytes)172,883,52034,099,200
Size164.9 MB 32.5 MB
Events in quadrant A1,016,772228,366
Events in quadrant B1,068,540230,858
Events in quadrant C1,030,445222,827
Events in quadrant D1,985,429208,275

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041930
B043440
C042860
D073070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1952773.944672%
B1951743.792927%
C1951763.895438%
D195121511.019990%

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 2762 1952 0 0 0.00% 0.00%
B 2761 1951 4 4 0.14% 0.21%
C 2761 1952 2 2 0.07% 0.10%
D 2761 1951 86 86 3.11% 4.41%

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 13 254 3026 50.21 263 258 55.1
A 3 137 2519 41.02 263 258 55.1
A 0 226 2285 36.77 263 258 55.1
B 0 245 27413 531.04 255 248 51.2
B 0 230 8783 166.85 255 248 51.2
B 15 33 8497 161.26 255 248 51.2
C 14 238 39848 665.46 246 247 59.5
C 2 16 20352 337.85 246 247 59.5
C 3 233 6351 102.57 246 247 59.5
D 7 223 465414 7670.77 246 238 60.6
D 8 195 274385 4520.7 246 238 60.6
D 1 52 230010 3788.95 246 238 60.6

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