ASTROSAT CZTI

Data Quality Report

Orbit 20200130_C05_002T05_9000003472_level2

Creation date: 2020-02-03T14:24:15.683181
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/AS1C05_002T05_9000003472cztM0_level2_bc.evt modeM0/AS1C05_002T05_9000003472cztM0_level2_quad_clean.evt
Size (bytes)171,089,28069,986,880
Size163.2 MB 66.7 MB
Events in quadrant A998,275450,272
Events in quadrant B1,049,251453,332
Events in quadrant C989,133438,249
Events in quadrant D1,803,643434,281

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100160
B0100850
C0100280
D0127100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4890891.820041%
B48901072.188139%
C48901032.106339%
D48901362.781186%

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 4889 4889 0 0 0.00% 0.00%
B 4889 4889 0 0 0.00% 0.00%
C 4889 4889 0 0 0.00% 0.00%
D 4889 4889 15 15 0.31% 0.31%

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 8964 148.68 256 250 58.6
A 15 174 2666 41.22 256 250 58.6
A 4 2 2534 38.97 256 250 58.6
B 0 219 19551 377.07 255 249 51.2
B 0 229 17743 341.75 255 249 51.2
B 0 190 14802 284.3 255 249 51.2
C 1 16 14244 234.72 245 243 59.6
C 7 247 13265 218.31 245 243 59.6
C 3 233 10759 176.3 245 243 59.6
D 7 238 535060 8716.92 252 243 61.4
D 1 52 154405 2512.67 252 243 61.4
D 14 50 63882 1037.24 252 243 61.4

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