ASTROSAT CZTI

Data Quality Report

Orbit 40592

Creation date: 2024-06-27T22:17:57.758543
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_054T02_9000005550_40592cztM0_level2.fits modeM0/AS1A12_054T02_9000005550_40592cztM0_level2_quad_clean.evt
Size (bytes)344,191,68080,357,760
Size328.2 MB 76.6 MB
Events in quadrant A2,749,455595,117
Events in quadrant B2,427,301607,837
Events in quadrant C2,541,454570,458
Events in quadrant D4,636,477314,015

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01011
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109719
B01026311
C0104352
D01723435

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0430
B0430
C0430
D0430

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A493490.182408%
B4931330.669235%
C4937230.465870%
D4933221244.840868%

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 9213 4938 3 3 0.03% 0.06%
B 9213 4936 22 22 0.24% 0.45%
C 9213 4939 21 21 0.23% 0.43%
D 9212 4934 658 658 7.14% 13.34%

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 470884 4066.61 568 559 115.7
A 2 79 44773 382.29 568 559 115.7
A 3 1 30337 257.47 568 559 115.7
B 0 190 113734 1067.27 559 545 106.1
B 3 112 60860 568.71 559 545 106.1
B 5 255 31926 295.89 559 545 106.1
C 15 214 233476 1830.53 545 549 127.2
C 14 254 158498 1241.29 545 549 127.2
C 0 10 15104 114.39 545 549 127.2
D 12 227 2439252 23308.9 423 410 104.6
D 12 191 278737 2660.07 423 410 104.6
D 2 249 66915 635.61 423 410 104.6

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