ASTROSAT CZTI

Data Quality Report

Orbit 42339

Creation date: 2024-06-27T22:39:10.668401
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/AS1C07_001T10_9000005796_42339cztM0_level2.fits modeM0/AS1C07_001T10_9000005796_42339cztM0_level2_quad_clean.evt
Size (bytes)318,144,96089,596,800
Size303.4 MB 85.4 MB
Events in quadrant A2,983,623596,138
Events in quadrant B2,538,881607,795
Events in quadrant C2,602,453585,952
Events in quadrant D3,221,361536,569

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120922
B0113982
C0112462
D0134714

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5522150.271641%
B5522160.289750%
C552220.036219%
D55211252.264083%

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 7165 5523 6 6 0.08% 0.11%
B 7165 5523 6 6 0.08% 0.11%
C 7165 5523 1 1 0.01% 0.02%
D 7164 5522 121 121 1.69% 2.19%

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 10 83 596877 4827.23 599 586 123.5
A 15 252 33897 269.67 599 586 123.5
A 3 1 11048 84.69 599 586 123.5
B 0 245 52398 453.82 593 577 114.2
B 15 36 44972 388.79 593 577 114.2
B 0 230 34342 295.7 593 577 114.2
C 15 214 233172 1720.39 581 583 135.2
C 9 54 62007 454.33 581 583 135.2
C 15 111 36663 266.87 581 583 135.2
D 12 6 270091 1883.95 581 563 143.1
D 1 52 195839 1364.94 581 563 143.1
D 12 233 88909 617.52 581 563 143.1

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