ASTROSAT CZTI

Data Quality Report

Orbit 05089

Creation date: 2024-06-27T14:51:09.387548
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/AS1G05_103T01_9000000642_05089cztM0_level2.evt modeM0/AS1G05_103T01_9000000642_05089cztM0_level2_quad_clean.evt
Size (bytes)631,915,20078,917,760
Size602.6 MB 75.3 MB
Events in quadrant A3,102,747512,337
Events in quadrant B3,220,187519,815
Events in quadrant C3,009,986515,242
Events in quadrant D9,335,798359,825

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142513
B0142842
C0139632
D0325142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6914390.564073%
B6914220.318195%
C6914120.173561%
D6914235934.119178%

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 7779 6915 9 9 0.12% 0.13%
B 7779 6914 2 2 0.03% 0.03%
C 7779 6914 0 0 0.00% 0.00%
D 7779 6914 1958 1958 25.17% 28.32%

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 15 174 77962 481.13 781 762 160.5
A 0 50 19187 114.83 781 762 160.5
A 12 194 7815 43.96 781 762 160.5
B 0 219 49180 315.74 793 775 153.3
B 15 204 48738 312.85 793 775 153.3
B 0 231 24112 152.22 793 775 153.3
C 8 128 6326 31.03 768 774 178.9
C 13 61 6150 30.05 768 774 178.9
C 8 112 3080 12.89 768 774 178.9
D 12 22 5091240 34464.41 602 584 147.7
D 13 235 717067 4850.68 602 584 147.7
D 13 239 555648 3757.86 602 584 147.7

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