ASTROSAT CZTI

Data Quality Report

Orbit 10603

Creation date: 2024-06-27T16:01:21.721683
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/AS1T01_191T01_9000001536_10603cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10603cztM0_level2_quad_clean.evt
Size (bytes)1,431,561,600261,731,520
Size1.3 GB 249.6 MB
Events in quadrant A8,413,2371,714,857
Events in quadrant B12,984,5221,658,610
Events in quadrant C8,113,3321,725,625
Events in quadrant D12,649,9531,608,447

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03600
B03600
C03600
D03600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0365104
B0499053
C0362933
D0503273

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A176962321.311031%
B1769614017.917043%
C176961450.819394%
D176964192.367767%

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 19366 17699 2 2 0.01% 0.01%
B 19366 17699 823 823 4.25% 4.65%
C 19366 17699 2 2 0.01% 0.01%
D 19366 17699 231 231 1.19% 1.31%

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 1 162 86783 193.98 2119 2080 436.6
A 15 239 35787 77.19 2119 2080 436.6
A 1 178 32028 68.59 2119 2080 436.6
B 4 239 4364198 10976.77 2071 2026 397.4
B 0 214 126934 314.31 2071 2026 397.4
B 0 219 118501 293.09 2071 2026 397.4
C 15 48 68148 138.45 2049 2070 477.3
C 4 175 17766 32.89 2049 2070 477.3
C 13 61 15252 27.62 2049 2070 477.3
D 2 16 2384211 4840.01 2029 1976 492.2
D 8 195 1536522 3117.75 2029 1976 492.2
D 1 52 389033 786.39 2029 1976 492.2

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