ASTROSAT CZTI

Data Quality Report

Orbit 08395

Creation date: 2024-06-27T15:31:54.515862
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_062T01_9000001176_08395cztM0_level2.evt modeM0/AS1A03_062T01_9000001176_08395cztM0_level2_quad_clean.evt
Size (bytes)443,036,16062,991,360
Size422.5 MB 60.1 MB
Events in quadrant A3,145,878374,101
Events in quadrant B3,290,770380,940
Events in quadrant C3,099,917366,735
Events in quadrant D3,461,227354,195

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129393
B0133392
C0129662
D0141722

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6181590.954538%
B6181811.310468%
C6181340.550073%
D61811302.103220%

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 7526 6183 0 0 0.00% 0.00%
B 7526 6183 10 10 0.13% 0.16%
C 7526 6183 1 1 0.01% 0.02%
D 7526 6183 100 100 1.33% 1.62%

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 0 226 7743 42.26 816 800 164.3
A 12 194 7048 38.03 816 800 164.3
A 14 111 4215 20.79 816 800 164.3
B 4 48 54405 347.09 819 802 154.4
B 10 252 23693 148.22 819 802 154.4
B 12 111 16906 104.28 819 802 154.4
C 1 16 28281 152.51 781 788 180.3
C 9 68 18805 99.95 781 788 180.3
C 13 61 5907 28.4 781 788 180.3
D 2 136 418745 2243.26 771 750 186.3
D 2 14 41084 216.46 771 750 186.3
D 1 52 38483 202.5 771 750 186.3

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