ASTROSAT CZTI

Data Quality Report

Orbit 05198

Creation date: 2024-06-27T14:52:32.156220
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_104T01_9000000656_05198cztM0_level2.evt modeM0/AS1G05_104T01_9000000656_05198cztM0_level2_quad_clean.evt
Size (bytes)409,593,60092,410,560
Size390.6 MB 88.1 MB
Events in quadrant A2,884,596590,133
Events in quadrant B2,935,103597,411
Events in quadrant C2,821,500602,833
Events in quadrant D3,337,418571,398

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129292
B0129341
C0127851
D0143671

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62631031.644579%
B6263771.229443%
C6263771.229443%
D62631412.251317%

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 7193 6264 0 0 0.00% 0.00%
B 7193 6264 0 0 0.00% 0.00%
C 7193 6264 0 0 0.00% 0.00%
D 7193 6263 55 55 0.76% 0.88%

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 4 2 73823 499.87 725 708 146.3
A 0 50 21674 143.34 725 708 146.3
A 12 194 7148 44.03 725 708 146.3
B 15 204 43851 311.48 729 712 138.5
B 15 54 36833 260.81 729 712 138.5
B 0 198 15554 107.17 729 712 138.5
C 1 16 21322 125.86 712 718 163.7
C 14 67 12472 71.8 712 718 163.7
C 13 61 5894 31.62 712 718 163.7
D 14 34 331944 1920.3 709 685 172.5
D 2 136 135385 780.85 709 685 172.5
D 1 31 67276 386.02 709 685 172.5

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