ASTROSAT CZTI

Data Quality Report

Orbit 39334

Creation date: 2024-06-27T22:03:22.644588
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_018T01_9000005470_39334cztM0_level2.fits modeM0/AS1A12_018T01_9000005470_39334cztM0_level2_quad_clean.evt
Size (bytes)57,323,52013,933,440
Size54.7 MB 13.3 MB
Events in quadrant A474,15991,730
Events in quadrant B388,60295,275
Events in quadrant C377,42889,976
Events in quadrant D814,31480,588

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019142
B016981
C016581
D030061

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82340.486027%
B82320.243013%
C82310.121507%
D823465.589307%

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 823 823 0 0 0.00% 0.00%
B 823 823 0 0 0.00% 0.00%
C 823 823 0 0 0.00% 0.00%
D 823 823 41 41 4.98% 4.98%

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 124857 6096.8 89 87 20.5
A 10 67 1977 92.35 89 87 20.5
A 13 254 1153 52.09 89 87 20.5
B 5 172 28252 1458.94 87 85 19.3
B 5 255 13946 717.94 87 85 19.3
B 12 111 2095 104.11 87 85 19.3
C 15 214 42917 1998.05 84 85 21.4
C 0 10 3095 140.41 84 85 21.4
C 13 61 537 21.09 84 85 21.4
D 12 235 362456 16394.85 84 81 22.1
D 12 227 61884 2796.14 84 81 22.1
D 13 249 22591 1018.41 84 81 22.1

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