ASTROSAT CZTI

Data Quality Report

Orbit 23649

Creation date: 2024-06-27T18:57:12.031108
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/AS1A07_091T04_9000003492_23649cztM0_level2.evt modeM0/AS1A07_091T04_9000003492_23649cztM0_level2_quad_clean.evt
Size (bytes)241,159,68033,252,480
Size230.0 MB 31.7 MB
Events in quadrant A1,498,068201,560
Events in quadrant B2,156,115208,592
Events in quadrant C1,599,910199,798
Events in quadrant D1,849,630188,454

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07033766
B094001003
C07373716
D08229780

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0655
B0664
C0658
D06610

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2920311.061644%
B29082077.118294%
C2940862.925170%
D29111926.595672%

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 4394 2968 0 0 0.00% 0.00%
B 4390 2947 93 93 2.12% 3.16%
C 4400 2991 3 3 0.07% 0.10%
D 4392 2959 129 129 2.94% 4.36%

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 5007 58.23 388 379 79.5
A 3 137 3339 37.24 388 379 79.5
A 0 226 3312 36.9 388 379 79.5
B 0 229 413177 5585.74 382 371 73.9
B 3 64 167227 2257.75 382 371 73.9
B 0 189 58413 785.37 382 371 73.9
C 14 238 59248 660.63 377 380 89.1
C 3 233 44766 498.11 377 380 89.1
C 7 247 15641 171.26 377 380 89.1
D 9 85 305777 3393.38 369 358 90.0
D 12 233 85198 942.62 369 358 90.0
D 1 52 30988 340.32 369 358 90.0

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