ASTROSAT CZTI

Data Quality Report

Orbit 43142

Creation date: 2024-06-27T22:48:35.468013
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_107T01_9000005854_43142cztM0_level2.fits modeM0/AS1A09_107T01_9000005854_43142cztM0_level2_quad_clean.evt
Size (bytes)382,521,60091,618,560
Size364.8 MB 87.4 MB
Events in quadrant A3,616,682615,602
Events in quadrant B2,942,224603,476
Events in quadrant C2,561,777631,924
Events in quadrant D4,632,144557,266

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141572
B0123782
C0108482
D0173162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0310
C0310
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5231571.089658%
B52313186.079144%
C5231170.324986%
D52312905.543873%

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 7385 5232 25 25 0.34% 0.48%
B 7385 5232 259 259 3.51% 4.95%
C 7385 5232 11 11 0.15% 0.21%
D 7385 5232 263 263 3.56% 5.03%

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 587922 5005.32 575 565 117.3
A 15 222 360734 3069.28 575 565 117.3
A 12 189 226394 1924.46 575 565 117.3
B 0 229 717927 7021.25 546 532 102.2
B 5 255 46353 448.46 546 532 102.2
B 0 230 17063 161.79 546 532 102.2
C 15 214 235995 1820.16 566 569 129.3
C 14 254 107172 824.18 566 569 129.3
C 0 239 4565 30.89 566 569 129.3
D 1 52 2053841 15087.0 559 545 136.1
D 7 223 301138 2208.67 559 545 136.1
D 12 16 63737 464.32 559 545 136.1

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