ASTROSAT CZTI

Data Quality Report

Orbit 09089

Creation date: 2024-06-27T15:41:00.568357
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_120T01_9000001266_09089cztM0_level2.evt modeM0/AS1A03_120T01_9000001266_09089cztM0_level2_quad_clean.evt
Size (bytes)453,395,52069,744,960
Size432.4 MB 66.5 MB
Events in quadrant A3,545,138421,717
Events in quadrant B3,248,208432,090
Events in quadrant C3,077,528414,942
Events in quadrant D3,428,659399,645

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142983
B0134872
C0131172
D0140922

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6355510.802518%
B6355550.865460%
C6355130.204563%
D6355620.975610%

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 7715 6356 1 1 0.01% 0.02%
B 7715 6356 0 0 0.00% 0.00%
C 7715 6356 0 0 0.00% 0.00%
D 7715 6356 34 34 0.44% 0.53%

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 246895 1509.07 816 803 163.1
A 1 162 79976 485.5 816 803 163.1
A 1 178 17082 99.82 816 803 163.1
B 0 219 29262 186.49 822 805 152.6
B 12 111 16443 102.48 822 805 152.6
B 0 214 15493 96.25 822 805 152.6
C 14 234 13625 71.83 785 790 178.7
C 13 61 5680 27.36 785 790 178.7
C 3 254 3357 14.37 785 790 178.7
D 1 52 181341 921.95 777 759 195.9
D 8 195 170903 868.65 777 759 195.9
D 7 71 49753 250.13 777 759 195.9

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