ASTROSAT CZTI

Data Quality Report

Orbit 36070

Creation date: 2022-08-10T04:43:31.837630
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/AS1T04_069T01_9000005158_36070cztM0_level2.evt modeM0/AS1T04_069T01_9000005158_36070cztM0_level2_quad_clean.evt
Size (bytes)399,997,44064,716,480
Size381.5 MB 61.7 MB
Events in quadrant A2,546,737408,130
Events in quadrant B2,716,595411,565
Events in quadrant C2,939,648394,171
Events in quadrant D3,552,851376,772

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109463
B0114052
C0119372
D0142102

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5264100.189970%
B5264350.664894%
C52641011.918693%
D52642685.091185%

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 7087 5265 2 2 0.03% 0.04%
B 7087 5265 21 21 0.30% 0.40%
C 7087 5265 86 86 1.21% 1.63%
D 7087 5265 257 257 3.63% 4.88%

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 170885 1371.65 609 597 124.1
A 13 6 10723 81.56 609 597 124.1
A 13 254 8264 61.76 609 597 124.1
B 0 190 82712 694.76 609 595 118.2
B 0 213 74451 624.87 609 595 118.2
B 5 172 40481 337.46 609 595 118.2
C 15 214 219861 1590.62 586 588 137.9
C 0 10 185084 1338.35 586 588 137.9
C 0 207 151218 1092.68 586 588 137.9
D 12 17 406741 2856.88 574 559 142.2
D 12 6 309732 2174.57 574 559 142.2
D 1 52 203256 1425.67 574 559 142.2

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