ASTROSAT CZTI

Data Quality Report

Orbit 10422

Creation date: 2024-06-27T15:59:55.982310
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/AS1G07_068T02_9000001508_10422cztM0_level2.evt modeM0/AS1G07_068T02_9000001508_10422cztM0_level2_quad_clean.evt
Size (bytes)423,947,52081,008,640
Size404.3 MB 77.3 MB
Events in quadrant A3,331,644478,390
Events in quadrant B2,733,148520,138
Events in quadrant C2,700,208549,429
Events in quadrant D3,719,741540,292

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020681
B020681
C020685
D020080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02911
B03113
C03114
D03011

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03007916984
B02793316806
C0215169929
D02834913953

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4757731.534581%
B4887651.330059%
C5615360.641140%
D53782454.555597%

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 7581 5479 1 1 0.01% 0.02%
B 7583 5489 1 1 0.01% 0.02%
C 7583 6182 0 0 0.00% 0.00%
D 7583 5773 178 178 2.35% 3.08%

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 13 251 1079499 9128.12 582 570 118.2
A 14 254 5973 45.71 582 570 118.2
A 0 226 5273 39.79 582 570 118.2
B 4 239 314402 2728.23 606 592 115.0
B 0 214 22771 192.82 606 592 115.0
B 10 245 20417 172.36 606 592 115.0
C 14 234 8578 49.8 688 693 158.3
C 13 61 4969 27.01 688 693 158.3
C 3 254 3388 17.02 688 693 158.3
D 2 33 593542 3851.04 652 634 154.0
D 1 20 300603 1948.35 652 634 154.0
D 8 195 221318 1433.38 652 634 154.0

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