ASTROSAT CZTI

Data Quality Report

Orbit 06554

Creation date: 2024-06-27T15:08:44.505034
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/AS1G05_246T04_9000000882_06554cztM0_level2.evt modeM0/AS1G05_246T04_9000000882_06554cztM0_level2_quad_clean.evt
Size (bytes)476,680,32086,944,320
Size454.6 MB 82.9 MB
Events in quadrant A3,005,132548,465
Events in quadrant B3,327,195558,875
Events in quadrant C2,925,862558,627
Events in quadrant D4,745,381522,394

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133723
B0143192
C0132402
D0185662

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6370330.518053%
B63701011.585557%
C6370220.345369%
D63712473.876942%

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 7550 6371 10 10 0.13% 0.16%
B 7550 6370 47 47 0.62% 0.74%
C 7550 6371 0 0 0.00% 0.00%
D 7551 6372 178 178 2.36% 2.79%

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 13 251 60150 385.97 754 738 153.9
A 8 15 35520 225.96 754 738 153.9
A 0 226 7155 41.69 754 738 153.9
B 0 219 183239 1243.31 764 745 146.8
B 4 81 56371 378.97 764 745 146.8
B 0 214 32080 213.48 764 745 146.8
C 1 16 18465 102.97 743 747 172.1
C 9 54 6116 31.2 743 747 172.1
C 13 61 5775 29.22 743 747 172.1
D 11 241 1630081 9127.11 728 706 178.5
D 2 14 119595 665.97 728 706 178.5
D 2 33 60810 336.68 728 706 178.5

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