ASTROSAT CZTI

Data Quality Report

Orbit 06742

Creation date: 2024-06-27T15:11:03.184411
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/AS1G06_066T01_9000000928_06742cztM0_level2.evt modeM0/AS1G06_066T01_9000000928_06742cztM0_level2_quad_clean.evt
Size (bytes)251,729,28044,740,800
Size240.1 MB 42.7 MB
Events in quadrant A1,557,071291,059
Events in quadrant B1,594,246294,144
Events in quadrant C1,523,007285,494
Events in quadrant D2,738,288264,275

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066990
B067590
C064600
D0101610

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3086802.592353%
B3086872.819183%
C3086551.782242%
D30862638.522359%

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 4096 3087 9 9 0.22% 0.29%
B 4096 3087 12 12 0.29% 0.39%
C 4096 3087 0 0 0.00% 0.00%
D 4096 3087 208 208 5.08% 6.74%

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 14 111 67408 866.84 377 368 77.3
A 8 15 30971 395.7 377 368 77.3
A 4 2 7915 97.58 377 368 77.3
B 3 220 63037 859.98 374 365 72.9
B 0 214 23391 315.96 374 365 72.9
B 0 219 16383 219.8 374 365 72.9
C 9 16 62708 736.29 359 359 84.7
C 9 247 58545 687.13 359 359 84.7
C 13 61 2768 28.45 359 359 84.7
D 2 33 575797 6492.74 359 346 88.6
D 2 152 359616 4053.6 359 346 88.6
D 14 34 198067 2230.86 359 346 88.6

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