ASTROSAT CZTI

Data Quality Report

Orbit 05283

Creation date: 2024-06-27T14:53:28.616156
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/AS1G05_240T02_9000000670_05283cztM0_level2.evt modeM0/AS1G05_240T02_9000000670_05283cztM0_level2_quad_clean.evt
Size (bytes)534,576,96085,170,240
Size509.8 MB 81.2 MB
Events in quadrant A3,078,389543,526
Events in quadrant B3,220,636560,151
Events in quadrant C3,075,943541,942
Events in quadrant D6,368,955475,264

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135913
B0137842
C0134902
D0236042

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6567190.289325%
B6567260.395919%
C6567110.167504%
D656797314.816507%

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 7877 6568 1 1 0.01% 0.02%
B 7877 6568 0 0 0.00% 0.00%
C 7877 6568 0 0 0.00% 0.00%
D 7877 6568 784 784 9.95% 11.94%

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 50 34990 216.35 786 769 158.2
A 13 14 9126 52.83 786 769 158.2
A 0 226 7674 43.65 786 769 158.2
B 4 48 75636 491.26 805 787 152.4
B 15 54 15996 99.82 805 787 152.4
B 12 111 13868 85.86 805 787 152.4
C 8 128 17085 90.52 779 783 180.1
C 8 112 7467 37.12 779 783 180.1
C 8 144 6609 32.35 779 783 180.1
D 11 145 3159286 17769.07 720 698 177.8
D 2 136 196677 1102.51 720 698 177.8
D 2 16 138602 775.8 720 698 177.8

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