ASTROSAT CZTI

Data Quality Report

Orbit 46847

Creation date: 2024-06-27T23:28:26.372975
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_053T01_9000006274_46847cztM0_level2.fits modeM0/AS1A13_053T01_9000006274_46847cztM0_level2_quad_clean.evt
Size (bytes)507,913,92096,929,280
Size484.4 MB 92.4 MB
Events in quadrant A5,878,119651,445
Events in quadrant B4,496,539658,430
Events in quadrant C2,758,552654,126
Events in quadrant D5,187,448538,351

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210671
B0174611
C0128251
D0197021

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61941953.148208%
B61953495.633575%
C6195300.484262%
D619577512.510089%

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 7139 6195 25 25 0.35% 0.40%
B 7140 6196 212 212 2.97% 3.42%
C 7140 6196 7 7 0.10% 0.11%
D 7140 6196 619 619 8.67% 9.99%

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 3045385 21477.17 680 665 141.8
A 15 235 111832 784.16 680 665 141.8
A 13 248 41483 287.93 680 665 141.8
B 3 112 1774374 13483.38 667 647 131.5
B 0 198 19965 146.85 667 647 131.5
B 12 111 16871 123.33 667 647 131.5
C 3 233 59001 371.05 668 671 157.2
C 1 241 40839 255.52 668 671 157.2
C 0 207 25116 155.5 668 671 157.2
D 13 249 1828901 11545.47 632 614 158.4
D 1 52 724883 4573.7 632 614 158.4
D 12 233 51465 321.12 632 614 158.4

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