ASTROSAT CZTI

Data Quality Report

Orbit 43213

Creation date: 2024-06-27T22:49:22.764034
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/AS1A09_036T17_9000005858_43213cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43213cztM0_level2_quad_clean.evt
Size (bytes)344,093,76094,305,600
Size328.2 MB 89.9 MB
Events in quadrant A3,912,081616,524
Events in quadrant B2,819,957656,071
Events in quadrant C2,611,185631,151
Events in quadrant D2,974,624575,004

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151332
B0120952
C0109172
D0124282

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53842244.160475%
B5385631.169916%
C538540.074280%
D5385591.095636%

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 7447 5385 205 205 2.75% 3.81%
B 7448 5386 38 38 0.51% 0.71%
C 7448 5386 0 0 0.00% 0.00%
D 7448 5386 55 55 0.74% 1.02%

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 575307 4646.58 600 589 123.7
A 13 248 480158 3877.31 600 589 123.7
A 15 237 474253 3829.57 600 589 123.7
B 5 255 236675 2034.56 606 592 116.0
B 4 36 115347 988.96 606 592 116.0
B 0 186 42529 361.41 606 592 116.0
C 15 214 225443 1597.6 602 607 140.7
C 14 254 26421 183.42 602 607 140.7
C 3 233 7688 50.31 602 607 140.7
D 1 52 457302 3114.59 600 584 146.6
D 2 249 97743 662.58 600 584 146.6
D 12 6 40885 274.83 600 584 146.6

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