ASTROSAT CZTI

Data Quality Report

Orbit 40443

Creation date: 2024-06-27T22:16:09.506854
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_022T01_9000005540_40443cztM0_level2.fits modeM0/AS1A12_022T01_9000005540_40443cztM0_level2_quad_clean.evt
Size (bytes)314,717,76089,605,440
Size300.1 MB 85.5 MB
Events in quadrant A2,854,322605,043
Events in quadrant B2,393,555623,695
Events in quadrant C2,871,285588,789
Events in quadrant D3,109,221517,378

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117043
B0108592
C0119122
D0127332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5404100.185048%
B540470.129534%
C5404430.795707%
D54042965.477424%

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 7167 5405 4 4 0.06% 0.07%
B 7167 5405 0 0 0.00% 0.00%
C 7167 5405 41 41 0.57% 0.76%
D 7167 5405 43 43 0.60% 0.80%

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 466614 3825.05 595 583 121.8
A 15 191 52546 426.5 595 583 121.8
A 7 3 12439 97.31 595 583 121.8
B 4 170 32843 281.43 590 574 114.7
B 3 112 24590 209.45 590 574 114.7
B 12 111 14420 120.75 590 574 114.7
C 14 254 379509 2845.57 573 577 133.2
C 15 214 236540 1771.95 573 577 133.2
C 3 233 6428 43.94 573 577 133.2
D 12 227 598031 4303.68 558 543 138.8
D 12 191 131328 942.04 558 543 138.8
D 2 250 83121 594.81 558 543 138.8

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