ASTROSAT CZTI

Data Quality Report

Orbit 43217

Creation date: 2024-06-27T22:49:25.825202
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_036T17_9000005858_43217cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43217cztM0_level2_quad_clean.evt
Size (bytes)358,761,60092,206,080
Size342.1 MB 87.9 MB
Events in quadrant A3,890,493597,820
Events in quadrant B2,754,148633,477
Events in quadrant C2,668,806608,861
Events in quadrant D3,518,694549,328

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150162
B0121352
C0116672
D0144832

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57532223.858856%
B5753240.417174%
C575330.052147%
D57532113.667652%

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 7306 5754 175 175 2.40% 3.04%
B 7306 5754 17 17 0.23% 0.30%
C 7306 5754 0 0 0.00% 0.00%
D 7306 5754 156 156 2.14% 2.71%

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 659530 5240.84 609 596 125.7
A 15 237 564428 4484.45 609 596 125.7
A 13 248 192394 1525.47 609 596 125.7
B 0 189 92384 768.54 615 598 119.4
B 0 186 75613 628.12 615 598 119.4
B 5 172 70384 584.33 615 598 119.4
C 15 214 243559 1704.33 606 607 142.5
C 14 254 55858 387.59 606 607 142.5
C 8 79 4150 24.85 606 607 142.5
D 1 52 522395 3496.6 602 584 149.2
D 13 249 360554 2412.12 602 584 149.2
D 12 218 102981 686.15 602 584 149.2

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