ASTROSAT CZTI

Data Quality Report

Orbit 43318

Creation date: 2024-06-27T22:50:34.762901
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/AS1A12_088T25_9000005866_43318cztM0_level2.fits modeM0/AS1A12_088T25_9000005866_43318cztM0_level2_quad_clean.evt
Size (bytes)356,466,24090,907,200
Size340.0 MB 86.7 MB
Events in quadrant A3,670,489607,983
Events in quadrant B2,660,387634,448
Events in quadrant C2,599,305608,779
Events in quadrant D3,845,916524,453

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143582
B0113362
C0109352
D0150422

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53821312.434039%
B5382300.557414%
C538260.111483%
D53823326.168711%

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 7116 5383 101 101 1.42% 1.88%
B 7116 5383 19 19 0.27% 0.35%
C 7116 5383 1 1 0.01% 0.02%
D 7116 5383 340 340 4.78% 6.32%

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 613045 4772.71 605 591 128.3
A 15 237 538103 4188.71 605 591 128.3
A 12 189 149786 1162.64 605 591 128.3
B 0 190 104827 852.63 606 587 122.3
B 5 172 58143 470.78 606 587 122.3
B 0 186 30422 244.04 606 587 122.3
C 15 214 230799 1627.77 592 595 141.4
C 14 254 22607 155.65 592 595 141.4
C 3 233 20989 144.21 592 595 141.4
D 1 52 608029 4144.56 577 557 146.6
D 2 249 587790 4006.48 577 557 146.6
D 1 47 194280 1321.7 577 557 146.6

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