ASTROSAT CZTI

Data Quality Report

Orbit 38897

Creation date: 2024-06-27T21:57:53.434726
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/AS1T05_064T01_9000005416_38897cztM0_level2.fits modeM0/AS1T05_064T01_9000005416_38897cztM0_level2_quad_clean.evt
Size (bytes)472,973,76081,279,360
Size451.1 MB 77.5 MB
Events in quadrant A2,579,313607,783
Events in quadrant B2,296,136631,331
Events in quadrant C2,478,583607,965
Events in quadrant D9,771,396269,508

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106822
B099911
C0102511
D0323231

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4911180.366524%
B4911100.203625%
C4911240.488699%
D4911272955.569131%

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 7035 4912 8 8 0.11% 0.16%
B 7035 4912 1 1 0.01% 0.02%
C 7035 4912 20 20 0.28% 0.41%
D 7035 4912 2870 2870 40.80% 58.43%

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 389369 3476.51 558 548 111.8
A 13 248 16664 144.1 558 548 111.8
A 13 6 9314 78.38 558 548 111.8
B 5 172 31508 292.25 564 548 105.9
B 0 155 27825 257.48 564 548 105.9
B 0 230 20238 185.86 564 548 105.9
C 15 214 204326 1580.26 560 564 128.9
C 10 20 39342 300.74 560 564 128.9
C 14 254 22070 166.79 560 564 128.9
D 12 227 6440973 66207.11 398 388 97.3
D 2 16 1044605 10734.21 398 388 97.3
D 5 222 236482 2426.97 398 388 97.3

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