ASTROSAT CZTI

Data Quality Report

Orbit 38262

Creation date: 2024-06-27T21:50:27.069975
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/AS1A07_145T01_9000005370_38262cztM0_level2.fits modeM0/AS1A07_145T01_9000005370_38262cztM0_level2_quad_clean.evt
Size (bytes)375,436,80089,686,080
Size358.0 MB 85.5 MB
Events in quadrant A2,749,223603,103
Events in quadrant B2,664,231621,339
Events in quadrant C2,664,119601,784
Events in quadrant D5,407,282517,584

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113853
B0114892
C0111542
D0195742

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5304130.245098%
B5304490.923831%
C5304250.471342%
D53044718.880090%

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 7186 5304 7 7 0.10% 0.13%
B 7186 5304 31 31 0.43% 0.58%
C 7186 5304 13 13 0.18% 0.25%
D 7186 5305 504 504 7.01% 9.50%

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 366392 3071.57 591 579 119.1
A 12 189 35559 293.71 591 579 119.1
A 9 143 22515 184.19 591 579 119.1
B 5 172 140750 1236.64 589 574 113.4
B 5 184 90627 794.45 589 574 113.4
B 0 229 42439 369.33 589 574 113.4
C 15 214 223762 1644.84 579 583 135.7
C 14 254 98575 722.21 579 583 135.7
C 5 128 29562 213.58 579 583 135.7
D 10 203 2669227 19296.74 561 546 138.3
D 12 235 199470 1438.38 561 546 138.3
D 1 47 111624 803.18 561 546 138.3

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