ASTROSAT CZTI

Data Quality Report

Orbit 43343

Creation date: 2024-06-27T22:50:49.018313
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_158T01_9000005868_43343cztM0_level2.fits modeM0/AS1T05_158T01_9000005868_43343cztM0_level2_quad_clean.evt
Size (bytes)303,845,76093,349,440
Size289.8 MB 89.0 MB
Events in quadrant A2,932,509634,715
Events in quadrant B2,467,104654,473
Events in quadrant C2,590,583617,650
Events in quadrant D2,851,810555,781

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117142
B0106452
C0106202
D0120532

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5200150.288462%
B5200110.211538%
C520040.076923%
D52001042.000000%

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 7263 5201 10 10 0.14% 0.19%
B 7263 5201 1 1 0.01% 0.02%
C 7263 5201 1 1 0.01% 0.02%
D 7263 5201 99 99 1.36% 1.90%

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 553388 4443.11 609 597 124.4
A 15 237 27623 217.22 609 597 124.4
A 3 137 6626 48.46 609 597 124.4
B 0 189 53133 453.5 604 589 115.9
B 0 245 25460 214.66 604 589 115.9
B 4 173 19080 159.59 604 589 115.9
C 15 214 219611 1570.03 598 602 139.5
C 3 233 31012 218.0 598 602 139.5
C 15 208 7904 52.35 598 602 139.5
D 12 6 250820 1735.37 588 573 144.2
D 13 249 140977 973.65 588 573 144.2
D 2 249 112530 776.38 588 573 144.2

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