ASTROSAT CZTI

Data Quality Report

Orbit 14113

Creation date: 2024-06-27T16:50:44.236805
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/AS1G08_028T01_9000002080_14113cztM0_level2.evt modeM0/AS1G08_028T01_9000002080_14113cztM0_level2_quad_clean.evt
Size (bytes)484,202,88073,422,720
Size461.8 MB 70.0 MB
Events in quadrant A3,393,911452,052
Events in quadrant B3,610,527451,030
Events in quadrant C3,464,225446,847
Events in quadrant D3,770,589436,237

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139383
B0146782
C0139232
D0152872

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62581211.933525%
B62581492.380952%
C6258971.550016%
D62581011.613934%

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 7544 6260 0 0 0.00% 0.00%
B 7544 6260 8 8 0.11% 0.13%
C 7544 6260 0 0 0.00% 0.00%
D 7544 6260 3 3 0.04% 0.05%

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 8 15 32150 179.19 872 855 174.6
A 0 226 7563 38.41 872 855 174.6
A 12 194 6629 33.06 872 855 174.6
B 0 85 75548 457.34 865 846 163.3
B 0 189 66380 401.21 865 846 163.3
B 10 16 40276 241.4 865 846 163.3
C 3 233 141312 719.47 848 857 195.2
C 8 128 8001 36.59 848 857 195.2
C 13 61 6137 27.05 848 857 195.2
D 1 52 216908 1077.35 848 830 200.6
D 2 152 184156 914.05 848 830 200.6
D 8 195 71695 353.33 848 830 200.6

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