ASTROSAT CZTI

Data Quality Report

Orbit 40113

Creation date: 2024-06-27T22:12:29.568099
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/AS1A12_004T01_9000005520_40113cztM0_level2.fits modeM0/AS1A12_004T01_9000005520_40113cztM0_level2_quad_clean.evt
Size (bytes)347,927,04086,333,760
Size331.8 MB 82.3 MB
Events in quadrant A2,677,147584,575
Events in quadrant B2,504,074613,598
Events in quadrant C4,384,659553,892
Events in quadrant D2,935,685522,367

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109943
B0107262
C0162542
D0122492

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4847100.206313%
B4847430.887147%
C48473717.654219%
D48471342.764597%

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 6969 4848 4 4 0.06% 0.08%
B 6969 4848 19 19 0.27% 0.39%
C 6969 4848 370 370 5.31% 7.63%
D 6969 4848 124 124 1.78% 2.56%

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 431014 3898.45 543 532 110.4
A 12 189 96605 870.04 543 532 110.4
A 2 79 26552 235.64 543 532 110.4
B 5 255 192785 1845.13 547 532 104.2
B 4 171 71127 677.53 547 532 104.2
B 5 172 53090 504.42 547 532 104.2
C 9 187 2080453 17004.3 524 528 122.3
C 15 214 195334 1592.62 524 528 122.3
C 0 10 41160 332.18 524 528 122.3
D 12 227 272889 2114.45 525 511 128.8
D 2 249 236147 1829.23 525 511 128.8
D 13 249 173204 1340.6 525 511 128.8

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