ASTROSAT CZTI

Data Quality Report

Orbit 09652

Creation date: 2024-06-27T15:48:54.869083
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/AS1A03_077T01_9000001372_09652cztM0_level2.evt modeM0/AS1A03_077T01_9000001372_09652cztM0_level2_quad_clean.evt
Size (bytes)2,831,538,240495,169,920
Size2.6 GB 472.2 MB
Events in quadrant A19,407,5973,080,080
Events in quadrant B20,212,8053,092,843
Events in quadrant C18,776,1863,057,994
Events in quadrant D24,523,1912,887,846

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0603
B0602
C0603
D0602

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A091858
B091981
C092167
D092074

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0930706733
B0945356806
C0920396693
D01103828696

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A419732320.552736%
B419582570.612517%
C41967860.204923%
D4178912152.907464%

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 51302 43524 45 45 0.09% 0.10%
B 51302 43510 31 31 0.06% 0.07%
C 51302 43478 1 1 0.00% 0.00%
D 51302 43339 992 992 1.93% 2.29%

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 15 174 264714 260.43 4941 4842 997.8
A 14 111 97316 92.67 4941 4842 997.8
A 0 226 45829 41.08 4941 4842 997.8
B 0 214 407400 428.2 4962 4849 940.1
B 0 219 138854 142.54 4962 4849 940.1
B 0 229 128615 131.65 4962 4849 940.1
C 13 61 36043 28.26 4791 4803 1105.4
C 8 128 23881 17.26 4791 4803 1105.4
C 14 67 20080 13.82 4791 4803 1105.4
D 1 52 2576443 2259.73 4690 4578 1138.1
D 7 71 1852250 1623.43 4690 4578 1138.1
D 12 233 957580 837.34 4690 4578 1138.1

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