ASTROSAT CZTI

Data Quality Report

Orbit 20190713_A05_115T01_9000003030_level2

Creation date: 2019-07-29T16:54:55.762975
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

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/AS1A05_115T01_9000003030cztM0_level2_bc.evt modeM0/AS1A05_115T01_9000003030cztM0_level2_quad_clean.evt
Size (bytes)4,879,664,6401,222,758,720
Size4.5 GB 1.1 GB
Events in quadrant A22,032,4377,989,172
Events in quadrant B25,230,9928,064,757
Events in quadrant C20,878,6287,666,964
Events in quadrant D72,934,1236,552,512

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01880
B01880
C01880
D01880

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020040
B020040
C020040
D020040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02089110
B02207220
C02077660
D03814210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9860913761.395410%
B9861318151.840528%
C9861015601.581990%
D986071700517.245226%

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 117229 98603 39 39 0.03% 0.04%
B 117229 98602 11 11 0.01% 0.01%
C 117229 98604 0 0 0.00% 0.00%
D 117229 98594 7618 7618 6.50% 7.73%

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 5 16 987346 852.51 5299 5207 1152.1
A 12 96 570288 490.5 5299 5207 1152.1
A 13 254 94635 77.62 5299 5207 1152.1
B 0 189 1276538 1270.77 5366 5247 1000.4
B 0 197 985337 979.68 5366 5247 1000.4
B 7 220 525867 520.4 5366 5247 1000.4
C 3 233 1030163 852.69 5105 5080 1202.2
C 3 9 51185 38.35 5105 5080 1202.2
C 0 207 39886 28.95 5105 5080 1202.2
D 2 16 27005279 23195.27 4839 4659 1164.1
D 1 52 7924720 6803.84 4839 4659 1164.1
D 7 38 7071927 6071.24 4839 4659 1164.1

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