ASTROSAT CZTI

Data Quality Report

Orbit 16429

Creation date: 2024-06-27T17:22:33.117071
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_069T03_9000002426_16429cztM0_level2.evt modeM0/AS1A05_069T03_9000002426_16429cztM0_level2_quad_clean.evt
Size (bytes)471,844,80074,914,560
Size450.0 MB 71.4 MB
Events in quadrant A3,269,152465,632
Events in quadrant B3,692,228478,064
Events in quadrant C3,339,775448,867
Events in quadrant D3,551,724426,941

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135353
B0147912
C0138002
D0148462

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6428991.540137%
B64281742.706907%
C64281191.851276%
D64281412.193528%

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 9049 6431 3 3 0.03% 0.05%
B 9049 6431 22 22 0.24% 0.34%
C 9049 6430 0 0 0.00% 0.00%
D 9049 6431 39 39 0.43% 0.61%

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 45407 269.48 828 812 165.5
A 15 223 31303 184.25 828 812 165.5
A 15 239 8507 46.5 828 812 165.5
B 15 35 179174 1131.17 836 815 157.7
B 0 189 78684 493.85 836 815 157.7
B 0 198 45260 281.88 836 815 157.7
C 14 238 122036 656.78 794 801 184.6
C 3 233 92720 497.97 794 801 184.6
C 7 247 27942 147.03 794 801 184.6
D 5 222 333398 1730.42 788 764 192.2
D 12 218 84848 437.42 788 764 192.2
D 2 122 77625 399.85 788 764 192.2

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