ASTROSAT CZTI

Data Quality Report

Orbit 10249

Creation date: 2024-06-27T15:57:07.304973
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/AS1A03_069T03_9000001478_10249cztM0_level2.evt modeM0/AS1A03_069T03_9000001478_10249cztM0_level2_quad_clean.evt
Size (bytes)479,093,76066,568,320
Size456.9 MB 63.5 MB
Events in quadrant A3,309,677396,904
Events in quadrant B3,603,290398,703
Events in quadrant C3,125,055390,957
Events in quadrant D4,027,252372,818

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137682
B0147191
C0134801
D0162091

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65351422.172915%
B65351812.769702%
C6535891.361897%
D65351462.234124%

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 7645 6536 3 3 0.04% 0.05%
B 7645 6536 24 24 0.31% 0.37%
C 7645 6536 0 0 0.00% 0.00%
D 7645 6536 31 31 0.41% 0.47%

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 8 15 68286 405.77 827 811 166.3
A 15 174 35736 210.03 827 811 166.3
A 3 1 15074 85.77 827 811 166.3
B 11 51 124244 790.51 821 803 156.2
B 10 247 92740 588.76 821 803 156.2
B 0 214 73572 466.01 821 803 156.2
C 0 207 10903 55.13 798 801 183.2
C 13 61 6035 28.57 798 801 183.2
C 14 67 3089 12.49 798 801 183.2
D 8 195 639417 3339.2 798 775 191.3
D 1 52 80125 414.89 798 775 191.3
D 13 122 67988 351.43 798 775 191.3

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