ASTROSAT CZTI

Data Quality Report

Orbit 47470

Creation date: 2024-07-09T08:21:46.978649
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/AS1A13_089T01_9000006330_47470cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47470cztM0_level2_quad_clean.evt
Size (bytes)628,882,56088,329,600
Size599.7 MB 84.2 MB
Events in quadrant A7,095,091617,958
Events in quadrant B3,251,866652,232
Events in quadrant C2,765,364627,660
Events in quadrant D9,702,102357,828

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0253891
B0136361
C0124471
D0329221

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59974207.003502%
B59971612.684676%
C5997550.917125%
D5997252942.171086%

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 6858 5999 213 213 3.11% 3.55%
B 6858 5999 59 59 0.86% 0.98%
C 6858 5999 6 6 0.09% 0.10%
D 6858 5999 2373 2373 34.60% 39.56%

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 3456659 24861.38 663 648 139.0
A 9 191 1039259 7471.42 663 648 139.0
A 13 248 36810 260.14 663 648 139.0
B 0 200 257384 1899.8 669 649 135.1
B 5 32 160535 1183.13 669 649 135.1
B 0 198 94871 697.23 669 649 135.1
C 3 233 107935 685.59 661 663 156.5
C 0 207 28168 175.79 661 663 156.5
C 12 2 20644 127.7 661 663 156.5
D 6 112 6344967 44399.82 563 544 142.9
D 12 233 461027 3222.57 563 544 142.9
D 2 165 408980 2858.33 563 544 142.9

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