ASTROSAT CZTI

Data Quality Report

Orbit 43573

Creation date: 2024-06-27T22:53:19.396393
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/AS1A05_174T01_9000005880_43573cztM0_level2.fits modeM0/AS1A05_174T01_9000005880_43573cztM0_level2_quad_clean.evt
Size (bytes)1,137,651,84057,818,880
Size1.1 GB 55.1 MB
Events in quadrant A8,514,067554,395
Events in quadrant B4,810,372720,692
Events in quadrant C16,153,76729,539
Events in quadrant D12,149,6407,891

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0298441
B0187391
C0521761
D0404133

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6273175027.897338%
B62732574.096923%
C6273610797.353738%
D6273622399.202933%

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 7338 6273 1471 1471 20.05% 23.45%
B 7338 6273 122 122 1.66% 1.94%
C 7337 6272 5916 5916 80.63% 94.32%
D 7337 6272 3103 3103 42.29% 49.47%

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 63 3081738 22600.72 662 649 136.3
A 10 99 890631 6528.29 662 649 136.3
A 15 222 658569 4826.04 662 649 136.3
B 4 206 1433828 10151.43 720 699 141.2
B 0 200 299063 2113.43 720 699 141.2
B 3 25 60402 422.9 720 699 141.2
C 15 174 6886320 84932.98 336 338 81.1
C 15 142 5368291 66209.33 336 338 81.1
C 15 158 1781024 21963.31 336 338 81.1
D 4 212 4587451 80566.64 196 188 56.9
D 4 216 2497522 43860.97 196 188 56.9
D 8 48 599988 10534.36 196 188 56.9

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