ASTROSAT CZTI

Data Quality Report

Orbit 08364

Creation date: 2024-06-27T15:31:39.961719
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_036T01_9000001164_08364cztM0_level2.evt modeM0/AS1A03_036T01_9000001164_08364cztM0_level2_quad_clean.evt
Size (bytes)501,984,00066,453,120
Size478.7 MB 63.4 MB
Events in quadrant A3,585,537402,564
Events in quadrant B3,258,615415,868
Events in quadrant C3,018,290395,584
Events in quadrant D4,902,394348,118

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147103
B0136482
C0132132
D0187582

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64482684.156328%
B6448390.604839%
C644860.093052%
D64486179.568859%

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 7723 6449 141 141 1.83% 2.19%
B 7723 6449 2 2 0.03% 0.03%
C 7723 6449 0 0 0.00% 0.00%
D 7723 6449 532 532 6.89% 8.25%

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 14 111 433615 2736.05 784 768 158.2
A 15 239 117715 739.23 784 768 158.2
A 15 236 9043 52.31 784 768 158.2
B 4 81 38228 246.13 813 794 152.1
B 0 214 25292 161.07 813 794 152.1
B 4 173 17998 113.12 813 794 152.1
C 13 61 6045 29.58 772 777 178.1
C 12 2 4522 21.03 772 777 178.1
C 8 208 1968 6.69 772 777 178.1
D 12 233 1719871 9086.76 742 723 189.2
D 2 152 151526 797.08 742 723 189.2
D 7 71 73759 386.04 742 723 189.2

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