ASTROSAT CZTI

Data Quality Report

Orbit 47949

Creation date: 2024-08-10T01:36:26.567568
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_062T02_9000006384_47949cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47949cztM0_level2_quad_clean.evt
Size (bytes)585,777,60099,247,680
Size558.6 MB 94.6 MB
Events in quadrant A8,559,769624,710
Events in quadrant B3,009,218696,903
Events in quadrant C2,844,685668,033
Events in quadrant D6,772,679566,477

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0299531
B0133981
C0132281
D0246131

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A642677312.029256%
B6426861.338313%
C6426610.949269%
D642675511.749144%

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 7371 6426 495 495 6.72% 7.70%
B 7371 6426 2 2 0.03% 0.03%
C 7371 6426 11 11 0.15% 0.17%
D 7371 6426 688 688 9.33% 10.71%

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 3770250 25768.56 695 679 146.3
A 0 31 2099139 14344.95 695 679 146.3
A 3 137 8258 51.81 695 679 146.3
B 4 171 66720 467.6 713 691 141.2
B 7 221 35533 246.74 713 691 141.2
B 0 197 21686 148.68 713 691 141.2
C 14 254 40836 240.05 702 704 167.2
C 12 2 31536 184.42 702 704 167.2
C 12 250 20975 121.25 702 704 167.2
D 2 165 3821504 22328.05 676 654 171.1
D 5 235 67365 389.84 676 654 171.1
D 12 1 65824 380.84 676 654 171.1

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