ASTROSAT CZTI

Data Quality Report

Orbit 43416

Creation date: 2024-06-27T22:51:43.759936
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_9000005874_43416cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43416cztM0_level2_quad_clean.evt
Size (bytes)311,117,76086,529,600
Size296.7 MB 82.5 MB
Events in quadrant A2,836,399578,317
Events in quadrant B2,518,324607,702
Events in quadrant C2,367,367579,368
Events in quadrant D3,408,601507,509

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114512
B0106962
C0101382
D0136582

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0360
C0360
D0360

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4949551.111336%
B4949380.767832%
C494950.101031%
D49492144.324106%

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 7041 4950 39 39 0.55% 0.79%
B 7041 4950 16 16 0.23% 0.32%
C 7041 4950 1 1 0.01% 0.02%
D 7041 4950 224 224 3.18% 4.53%

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 554605 5014.35 540 529 110.5
A 15 237 164364 1482.7 540 529 110.5
A 13 6 17287 151.66 540 529 110.5
B 0 189 186143 1796.05 547 532 103.3
B 0 190 55425 531.17 547 532 103.3
B 5 255 43436 415.16 547 532 103.3
C 15 214 205301 1653.09 536 538 123.9
C 3 233 65887 527.58 536 538 123.9
C 15 159 5290 38.36 536 538 123.9
D 1 52 778798 6218.55 518 504 125.2
D 1 47 191868 1528.99 518 504 125.2
D 2 16 190059 1514.54 518 504 125.2

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