ASTROSAT CZTI

Data Quality Report

Orbit 41229

Creation date: 2024-06-27T22:26:14.386521
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/AS1T05_102T01_9000005634_41229cztM0_level2.fits modeM0/AS1T05_102T01_9000005634_41229cztM0_level2_quad_clean.evt
Size (bytes)375,022,08093,810,240
Size357.6 MB 89.5 MB
Events in quadrant A3,795,164639,272
Events in quadrant B3,198,070654,492
Events in quadrant C3,245,750610,974
Events in quadrant D3,237,748570,924

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143243
B0127722
C0126872
D0129412

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52151212.320230%
B5215881.687440%
C52151573.010547%
D52151703.259827%

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 7368 5216 78 78 1.06% 1.50%
B 7368 5216 55 55 0.75% 1.05%
C 7368 5216 150 150 2.04% 2.88%
D 7368 5216 154 154 2.09% 2.95%

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 0 8 850749 6753.62 620 609 125.9
A 10 83 512455 4066.17 620 609 125.9
A 13 254 9361 69.53 620 609 125.9
B 0 186 580100 4938.19 610 595 117.4
B 5 255 104526 885.64 610 595 117.4
B 0 190 46927 394.81 610 595 117.4
C 0 10 420283 3034.63 592 596 138.3
C 9 54 287793 2076.63 592 596 138.3
C 15 214 221486 1597.19 592 596 138.3
D 13 249 725303 4935.22 600 585 146.8
D 5 222 72912 492.54 600 585 146.8
D 2 249 59885 403.82 600 585 146.8

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