ASTROSAT CZTI

Data Quality Report

Orbit 42217

Creation date: 2024-06-27T22:38:37.514817
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_088T51_9000005780_42217cztM0_level2.fits modeM0/AS1A12_088T51_9000005780_42217cztM0_level2_quad_clean.evt
Size (bytes)310,947,84089,248,320
Size296.5 MB 85.1 MB
Events in quadrant A3,214,790592,677
Events in quadrant B2,502,729613,330
Events in quadrant C2,545,607581,159
Events in quadrant D2,819,773531,557

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128582
B0113742
C0110912
D0123832

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5480791.441606%
B5480460.839416%
C548070.127737%
D5480731.332117%

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 7123 5481 66 66 0.93% 1.20%
B 7123 5481 35 35 0.49% 0.64%
C 7123 5481 2 2 0.03% 0.04%
D 7123 5481 64 64 0.90% 1.17%

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 545584 4419.65 593 580 123.3
A 9 143 197015 1592.97 593 580 123.3
A 13 248 86774 698.98 593 580 123.3
B 0 229 108408 932.27 593 577 115.7
B 3 112 43129 367.89 593 577 115.7
B 12 111 15021 124.88 593 577 115.7
C 15 214 226981 1656.37 581 586 136.7
C 15 159 42318 305.32 581 586 136.7
C 7 220 6946 46.53 581 586 136.7
D 12 6 240208 1685.94 575 559 142.1
D 1 52 108822 761.64 575 559 142.1
D 2 249 93456 653.54 575 559 142.1

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