ASTROSAT CZTI

Data Quality Report

Orbit 43216

Creation date: 2024-06-27T22:49:25.092046
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/AS1A09_036T17_9000005858_43216cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43216cztM0_level2_quad_clean.evt
Size (bytes)363,663,36085,896,000
Size346.8 MB 81.9 MB
Events in quadrant A3,786,505560,236
Events in quadrant B2,660,240592,851
Events in quadrant C2,488,714572,423
Events in quadrant D4,111,136501,402

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146312
B0114703
C0107812
D0158852

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53322063.863466%
B5332130.243811%
C533230.056264%
D53323496.545386%

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 7245 5333 155 155 2.14% 2.91%
B 7245 5333 6 6 0.08% 0.11%
C 7245 5333 3 3 0.04% 0.06%
D 7245 5333 294 294 4.06% 5.51%

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 614669 5244.32 570 558 117.1
A 15 237 469339 4003.25 570 558 117.1
A 13 248 341286 2909.71 570 558 117.1
B 0 189 264700 2345.16 576 561 112.6
B 0 186 52079 457.4 576 561 112.6
B 5 172 39515 345.85 576 561 112.6
C 15 214 227761 1679.6 568 570 135.3
C 7 220 22039 158.72 568 570 135.3
C 14 254 17554 125.56 568 570 135.3
D 1 52 1362794 9811.48 557 541 138.8
D 13 249 329642 2370.31 557 541 138.8
D 2 249 65230 465.92 557 541 138.8

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