ASTROSAT CZTI

Data Quality Report

Orbit 09362

Creation date: 2024-06-27T15:45:01.900786
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/AS1A03_069T02_9000001324_09362cztM0_level2.evt modeM0/AS1A03_069T02_9000001324_09362cztM0_level2_quad_clean.evt
Size (bytes)528,287,040122,276,160
Size503.8 MB 116.6 MB
Events in quadrant A4,017,829805,495
Events in quadrant B3,536,425808,782
Events in quadrant C3,260,003811,533
Events in quadrant D4,684,596764,545

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167621
B0155841
C0149901
D0189281

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7370791.071913%
B7370670.909091%
C7370540.732700%
D73702933.975577%

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 8390 7371 6 6 0.07% 0.08%
B 8390 7371 4 4 0.05% 0.05%
C 8390 7371 0 0 0.00% 0.00%
D 8390 7371 206 206 2.46% 2.79%

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 8 5 642001 3699.15 839 821 173.3
A 13 251 73594 419.85 839 821 173.3
A 1 162 29066 162.95 839 821 173.3
B 0 214 67287 415.94 840 818 159.8
B 0 219 56713 349.77 840 818 159.8
B 5 255 55796 344.03 840 818 159.8
C 8 222 7408 34.46 831 834 190.8
C 13 61 6383 29.09 831 834 190.8
C 14 67 4013 16.67 831 834 190.8
D 1 52 583335 2698.25 806 789 215.9
D 12 227 264774 1222.73 806 789 215.9
D 1 255 205661 948.93 806 789 215.9

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