ASTROSAT CZTI

Data Quality Report

Orbit 41212

Creation date: 2024-06-27T22:26:00.128717
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/AS1C07_001T12_9000005632_41212cztM0_level2.fits modeM0/AS1C07_001T12_9000005632_41212cztM0_level2_quad_clean.evt
Size (bytes)326,116,80089,530,560
Size311.0 MB 85.4 MB
Events in quadrant A2,843,302605,513
Events in quadrant B2,636,965623,162
Events in quadrant C2,649,102589,486
Events in quadrant D3,529,720521,677

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116483
B0116982
C0113712
D0143432

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5294100.188893%
B5294400.755572%
C5294290.547790%
D52943135.912354%

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 7237 5295 4 4 0.06% 0.08%
B 7237 5295 24 24 0.33% 0.45%
C 7237 5295 28 28 0.39% 0.53%
D 7237 5295 268 268 3.70% 5.06%

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 528825 4539.67 575 563 116.4
A 12 189 53603 455.8 575 563 116.4
A 0 8 18078 150.52 575 563 116.4
B 0 186 283920 2590.79 571 556 109.4
B 0 190 68330 619.66 571 556 109.4
B 0 245 23369 208.58 571 556 109.4
C 15 214 231220 1814.77 552 554 127.1
C 14 254 193247 1516.02 552 554 127.1
C 0 10 66073 515.47 552 554 127.1
D 12 16 522570 4009.37 537 520 130.2
D 13 249 433048 3321.83 537 520 130.2
D 5 222 266209 2040.5 537 520 130.2

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