ASTROSAT CZTI

Data Quality Report

Orbit 43362

Creation date: 2024-06-27T22:51:03.025292
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/AS1A09_143T01_9000005870_43362cztM0_level2.fits modeM0/AS1A09_143T01_9000005870_43362cztM0_level2_quad_clean.evt
Size (bytes)337,147,20089,328,960
Size321.5 MB 85.2 MB
Events in quadrant A3,205,486602,794
Events in quadrant B2,691,571619,904
Events in quadrant C2,583,963588,026
Events in quadrant D3,564,849504,240

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127722
B0119312
C0112852
D0148182

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5570641.149013%
B5570200.359066%
C557040.071813%
D55704447.971275%

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 7092 5571 41 41 0.58% 0.74%
B 7092 5571 10 10 0.14% 0.18%
C 7092 5571 1 1 0.01% 0.02%
D 7092 5571 326 326 4.60% 5.85%

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 623266 5045.05 596 583 123.4
A 15 237 197440 1594.96 596 583 123.4
A 13 248 61479 493.39 596 583 123.4
B 0 189 214803 1858.03 591 575 115.3
B 0 190 58498 502.37 591 575 115.3
B 5 172 35499 302.9 591 575 115.3
C 15 214 231846 1706.17 579 581 135.5
C 3 233 62163 454.32 579 581 135.5
C 15 111 22484 161.59 579 581 135.5
D 1 52 1071060 7959.16 547 529 134.5
D 12 218 102879 760.95 547 529 134.5
D 2 249 82369 608.46 547 529 134.5

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