ASTROSAT CZTI

Data Quality Report

Orbit 33539

Creation date: 2024-06-27T20:49:54.964486
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/AS1A11_060T01_9000004808_33539cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33539cztM0_level2_quad_clean.evt
Size (bytes)467,930,88070,254,720
Size446.3 MB 67.0 MB
Events in quadrant A2,535,590450,787
Events in quadrant B2,948,824464,273
Events in quadrant C3,155,059444,187
Events in quadrant D5,183,088407,232

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104483
B0116782
C0123402
D0190902

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A514470.136081%
B5144531.030327%
C5144791.535770%
D51442735.307154%

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 7267 5145 0 0 0.00% 0.00%
B 7267 5145 37 37 0.51% 0.72%
C 7267 5145 68 68 0.94% 1.32%
D 7267 5145 265 265 3.65% 5.15%

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 13 254 8258 58.44 655 644 130.3
A 3 137 6046 41.46 655 644 130.3
A 10 83 6029 41.33 655 644 130.3
B 5 172 154011 1217.34 662 645 126.0
B 5 255 129447 1022.37 662 645 126.0
B 4 251 33592 261.52 662 645 126.0
C 0 10 254302 1697.73 650 658 149.4
C 15 214 223371 1490.7 650 658 149.4
C 14 67 59048 390.82 650 658 149.4
D 8 195 1570371 10303.54 630 615 152.4
D 2 250 484030 3173.03 630 615 152.4
D 12 6 243078 1591.48 630 615 152.4

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