ASTROSAT CZTI

Data Quality Report

Orbit 44335

Creation date: 2024-06-27T23:02:18.489370
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/AS1A13_004T09_9000005992_44335cztM0_level2.fits modeM0/AS1A13_004T09_9000005992_44335cztM0_level2_quad_clean.evt
Size (bytes)299,021,76070,888,320
Size285.2 MB 67.6 MB
Events in quadrant A2,964,388476,541
Events in quadrant B2,305,383485,331
Events in quadrant C2,098,749473,264
Events in quadrant D3,359,543403,367

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0922
B0942
C0931
D0944

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B021
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012660299
B09994232
C09504203
D013303264

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A43671102.518892%
B43691132.586404%
C4371310.709220%
D43643868.845096%

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 4835 4387 0 0 0.00% 0.00%
B 4826 4387 18 18 0.37% 0.41%
C 4834 4393 10 10 0.21% 0.23%
D 4826 4389 219 219 4.54% 4.99%

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 953161 8743.82 516 504 109.0
A 0 243 8173 70.39 516 504 109.0
A 3 137 6105 51.41 516 504 109.0
B 0 219 134828 1300.75 511 495 103.3
B 5 32 39097 373.78 511 495 103.3
B 0 190 27298 259.53 511 495 103.3
C 14 254 98090 807.71 506 509 120.8
C 3 233 10536 83.0 506 509 120.8
C 0 207 8131 63.09 506 509 120.8
D 13 249 463041 3756.38 491 476 123.1
D 12 233 370310 3003.33 491 476 123.1
D 13 138 134984 1092.31 491 476 123.1

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