ASTROSAT CZTI

Data Quality Report

Orbit 42661

Creation date: 2024-06-27T22:42:45.355735
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/AS1A05_013T01_9000005822_42661cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42661cztM0_level2_quad_clean.evt
Size (bytes)363,291,84089,827,200
Size346.5 MB 85.7 MB
Events in quadrant A3,030,664625,088
Events in quadrant B3,330,266611,304
Events in quadrant C2,555,102604,849
Events in quadrant D4,129,396517,249

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120332
B0132082
C0105062
D0158452

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5167470.909619%
B51672985.767370%
C516780.154829%
D51674739.154248%

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 7110 5168 30 30 0.42% 0.58%
B 7109 5167 252 252 3.54% 4.88%
C 7110 5168 1 1 0.01% 0.02%
D 7110 5168 427 427 6.01% 8.26%

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 534106 4375.97 598 588 121.9
A 13 248 152632 1247.08 598 588 121.9
A 15 223 15280 120.51 598 588 121.9
B 3 112 767649 7011.94 581 567 109.4
B 10 246 115934 1054.58 581 567 109.4
B 0 245 88885 807.32 581 567 109.4
C 15 214 216059 1602.5 584 588 134.5
C 14 254 19287 139.07 584 588 134.5
C 8 95 17226 123.74 584 588 134.5
D 12 218 807698 5857.34 563 548 137.8
D 2 249 726641 5269.12 563 548 137.8
D 1 52 214387 1551.79 563 548 137.8

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