ASTROSAT CZTI

Data Quality Report

Orbit 05157

Creation date: 2024-06-27T14:52:06.292547
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_214T01_9000000652_05157cztM0_level2.evt modeM0/AS1G05_214T01_9000000652_05157cztM0_level2_quad_clean.evt
Size (bytes)537,796,80087,546,240
Size512.9 MB 83.5 MB
Events in quadrant A3,884,758522,937
Events in quadrant B4,033,934527,611
Events in quadrant C3,834,242534,314
Events in quadrant D3,988,822508,443

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170464
B0171683
C0168233
D0174653

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80193284.090286%
B80193274.077815%
C80191632.032672%
D80202392.980050%

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 8104 8021 15 15 0.19% 0.19%
B 8104 8021 9 9 0.11% 0.11%
C 8104 8021 0 0 0.00% 0.00%
D 8105 8022 20 20 0.25% 0.25%

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 0 50 107143 521.48 981 956 203.6
A 12 194 9851 43.68 981 956 203.6
A 0 226 9584 42.37 981 956 203.6
B 4 48 69339 353.16 988 961 193.6
B 15 204 35338 177.55 988 961 193.6
B 0 219 32190 161.29 988 961 193.6
C 1 16 81155 357.0 961 965 224.6
C 13 61 7581 29.45 961 965 224.6
C 14 67 2750 7.95 961 965 224.6
D 13 53 130634 543.27 964 934 238.7
D 10 15 55847 230.01 964 934 238.7
D 2 136 54504 224.39 964 934 238.7

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