ASTROSAT CZTI

Data Quality Report

Orbit 31367

Creation date: 2024-06-27T20:27:19.828978
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_101T01_9000004546_31367cztM0_level2.evt modeM0/AS1A10_101T01_9000004546_31367cztM0_level2_quad_clean.evt
Size (bytes)521,280,00094,014,720
Size497.1 MB 89.7 MB
Events in quadrant A3,251,244630,660
Events in quadrant B4,951,595626,799
Events in quadrant C3,825,162581,464
Events in quadrant D3,349,541585,921

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129831
B0186441
C0153331
D0136041

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6042701.158557%
B60421322.184707%
C60422273.757034%
D6042761.257862%

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 7352 6043 0 0 0.00% 0.00%
B 7352 6043 3 3 0.04% 0.05%
C 7352 6043 34 34 0.46% 0.56%
D 7352 6043 7 7 0.10% 0.12%

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 11360 63.1 841 827 166.9
A 3 137 7817 41.87 841 827 166.9
A 0 226 7322 38.91 841 827 166.9
B 6 159 1612026 10482.8 815 796 153.7
B 4 80 71547 460.31 815 796 153.7
B 0 190 64869 416.86 815 796 153.7
C 3 233 450625 2517.8 775 783 178.7
C 14 238 140372 781.29 775 783 178.7
C 0 10 111341 618.8 775 783 178.7
D 8 195 191498 1028.37 799 784 185.5
D 10 203 57446 305.53 799 784 185.5
D 2 250 43101 228.18 799 784 185.5

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