ASTROSAT CZTI

Data Quality Report

Orbit 32839

Creation date: 2024-06-27T20:42:34.344981
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/AS1C06_002T09_9000004734_32839cztM0_level2.evt modeM0/AS1C06_002T09_9000004734_32839cztM0_level2_quad_clean.evt
Size (bytes)547,459,20093,576,960
Size522.1 MB 89.2 MB
Events in quadrant A2,652,628637,340
Events in quadrant B3,274,560626,770
Events in quadrant C3,940,489619,960
Events in quadrant D6,339,371563,893

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114923
B0134332
C0154442
D0228352

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5513130.235806%
B55131612.920370%
C5513821.487393%
D551365411.862870%

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 7156 5514 1 1 0.01% 0.02%
B 7156 5514 99 99 1.38% 1.80%
C 7156 5514 62 62 0.87% 1.12%
D 7156 5514 546 546 7.63% 9.90%

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 12 16 64817 494.11 642 629 129.9
A 14 238 53868 409.83 642 629 129.9
A 12 194 13295 97.5 642 629 129.9
B 5 172 436648 3602.39 635 617 121.0
B 0 219 101695 835.08 635 617 121.0
B 15 85 50822 414.78 635 617 121.0
C 3 233 961507 6630.47 624 630 144.9
C 9 160 395454 2724.46 624 630 144.9
C 0 10 57104 389.7 624 630 144.9
D 8 195 1297228 8732.58 595 579 148.5
D 2 250 645526 4343.54 595 579 148.5
D 7 80 575857 3874.34 595 579 148.5

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