ASTROSAT CZTI

Data Quality Report

Orbit 29197

Creation date: 2024-06-27T20:01:21.768907
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/AS1A10_048T07_9000004188_29197cztM0_level2.evt modeM0/AS1A10_048T07_9000004188_29197cztM0_level2_quad_clean.evt
Size (bytes)299,851,20054,129,600
Size286.0 MB 51.6 MB
Events in quadrant A1,837,406350,989
Events in quadrant B2,036,995358,010
Events in quadrant C2,067,876348,097
Events in quadrant D2,899,129332,979

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A077811
B084451
C085891
D0110591

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3513110.313123%
B3513270.768574%
C3513451.280956%
D35131714.867635%

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 3513 3513 0 0 0.00% 0.00%
B 3513 3513 3 3 0.09% 0.09%
C 3513 3513 1 1 0.03% 0.03%
D 3513 3513 126 126 3.59% 3.59%

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 13 254 6783 66.71 476 469 94.7
A 3 137 4296 40.43 476 469 94.7
A 0 226 4080 38.15 476 469 94.7
B 0 183 114464 1278.93 478 468 89.1
B 5 255 22514 247.34 478 468 89.1
B 3 209 12183 131.43 478 468 89.1
C 3 233 140674 1293.95 471 476 108.3
C 14 238 78122 716.63 471 476 108.3
C 2 114 8219 71.46 471 476 108.3
D 1 52 948004 8546.31 460 450 110.9
D 8 195 139550 1254.59 460 450 110.9
D 13 153 49364 441.17 460 450 110.9

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