ASTROSAT CZTI

Data Quality Report

Orbit 06184

Creation date: 2024-06-27T15:03:53.344682
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/AS1A02_152T01_9000000806_06184cztM0_level2.evt modeM0/AS1A02_152T01_9000000806_06184cztM0_level2_quad_clean.evt
Size (bytes)403,577,28084,067,200
Size384.9 MB 80.2 MB
Events in quadrant A2,877,558541,320
Events in quadrant B3,249,548537,712
Events in quadrant C2,750,569520,713
Events in quadrant D2,916,591508,402

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015414
B015422
C015432
D015436

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156612682
B0172243364
C0154582717
D0164633099

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B091
C091
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6292190.301971%
B6181841.359003%
C625340.063969%
D6273260.414475%

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 7947 7259 0 0 0.00% 0.00%
B 7948 7158 47 47 0.59% 0.66%
C 7948 7223 0 0 0.00% 0.00%
D 7948 7199 17 17 0.21% 0.24%

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 8 15 51180 332.48 729 712 151.8
A 0 254 16515 104.11 729 712 151.8
A 0 226 6958 41.15 729 712 151.8
B 3 64 385994 2775.79 719 703 138.8
B 4 80 33147 233.74 719 703 138.8
B 15 204 25398 177.91 719 703 138.8
C 1 16 16326 94.82 699 702 164.8
C 13 61 5639 29.96 699 702 164.8
C 14 67 2331 9.89 699 702 164.8
D 2 136 179909 1048.2 696 673 171.0
D 10 172 42805 246.39 696 673 171.0
D 5 97 30693 175.56 696 673 171.0

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