ASTROSAT CZTI

Data Quality Report

Orbit 42782

Creation date: 2024-06-27T22:44:10.876876
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/AS1A05_013T01_9000005822_42782cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42782cztM0_level2_quad_clean.evt
Size (bytes)299,851,20090,777,600
Size286.0 MB 86.6 MB
Events in quadrant A3,039,826609,245
Events in quadrant B2,533,004613,645
Events in quadrant C2,583,294596,565
Events in quadrant D2,522,158551,281

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120852
B0113032
C0109852
D0114652

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5402150.277675%
B5402450.833025%
C540250.092558%
D5402380.703443%

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 9049 5404 8 8 0.09% 0.15%
B 9049 5404 37 37 0.41% 0.68%
C 9049 5404 1 1 0.01% 0.02%
D 9049 5404 37 37 0.41% 0.68%

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 602187 4833.6 602 589 124.5
A 13 248 61416 488.72 602 589 124.5
A 12 189 30337 239.01 602 589 124.5
B 5 172 167605 1456.03 592 576 114.7
B 12 111 14343 120.01 592 576 114.7
B 11 111 13418 111.95 592 576 114.7
C 15 214 225116 1626.57 588 591 138.0
C 14 254 52834 378.47 588 591 138.0
C 15 208 7691 51.44 588 591 138.0
D 12 233 69374 478.08 588 572 143.9
D 5 171 62597 430.99 588 572 143.9
D 2 249 53830 370.07 588 572 143.9

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