ASTROSAT CZTI

Data Quality Report

Orbit 38066

Creation date: 2024-06-27T21:48:00.806643
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/AS1A11_047T09_9000005362_38066cztM0_level2.fits modeM0/AS1A11_047T09_9000005362_38066cztM0_level2_quad_clean.evt
Size (bytes)366,626,88093,695,040
Size349.6 MB 89.4 MB
Events in quadrant A3,025,288644,961
Events in quadrant B3,011,971633,349
Events in quadrant C3,505,566618,779
Events in quadrant D3,606,854560,859

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124623
B0124612
C0139822
D0144032

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5415310.572484%
B54151653.047091%
C54151092.012927%
D54153115.743306%

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 7059 5416 10 10 0.14% 0.18%
B 7059 5416 92 92 1.30% 1.70%
C 7059 5416 81 81 1.15% 1.50%
D 7059 5416 254 254 3.60% 4.69%

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 383092 2929.32 641 630 130.6
A 12 16 44165 333.44 641 630 130.6
A 7 3 42858 323.43 641 630 130.6
B 5 172 365299 2950.65 627 609 123.6
B 4 232 67007 537.22 627 609 123.6
B 15 85 33216 263.82 627 609 123.6
C 1 23 520366 3546.77 622 625 146.5
C 3 233 291876 1987.53 622 625 146.5
C 15 214 225625 1535.43 622 625 146.5
D 12 227 735947 4890.82 611 593 150.4
D 12 233 157798 1045.57 611 593 150.4
D 2 250 100168 662.27 611 593 150.4

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