ASTROSAT CZTI

Data Quality Report

Orbit 09029

Creation date: 2024-06-27T15:40:15.517657
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/AS1G07_029T02_9000001256_09029cztM0_level2.evt modeM0/AS1G07_029T02_9000001256_09029cztM0_level2_quad_clean.evt
Size (bytes)552,421,44065,880,000
Size526.8 MB 62.8 MB
Events in quadrant A6,272,762379,546
Events in quadrant B3,367,459396,207
Events in quadrant C3,046,096386,697
Events in quadrant D3,596,757372,206

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230603
B0141082
C0134562
D0152422

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65965167.822923%
B6596460.697392%
C6596160.242571%
D65961342.031534%

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 7766 6596 418 418 5.38% 6.34%
B 7766 6597 8 8 0.10% 0.12%
C 7766 6597 0 0 0.00% 0.00%
D 7766 6597 103 103 1.33% 1.56%

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 5 3136418 19463.76 794 776 161.1
A 1 162 48790 298.04 794 776 161.1
A 1 178 10642 61.24 794 776 161.1
B 4 48 124483 804.68 813 796 153.7
B 0 187 25218 158.88 813 796 153.7
B 0 214 20291 126.83 813 796 153.7
C 14 67 8143 40.84 779 784 180.2
C 13 61 5958 28.71 779 784 180.2
C 3 202 1921 6.31 779 784 180.2
D 1 52 368532 1957.02 765 748 187.9
D 2 14 147302 779.83 765 748 187.9
D 6 225 87839 463.42 765 748 187.9

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