ASTROSAT CZTI

Data Quality Report

Orbit 06394

Creation date: 2024-06-27T15:06:24.778881
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/AS1C02_017T01_9000000848_06394cztM0_level2.evt modeM0/AS1C02_017T01_9000000848_06394cztM0_level2_quad_clean.evt
Size (bytes)456,376,320129,009,600
Size435.2 MB 123.0 MB
Events in quadrant A3,181,255861,888
Events in quadrant B3,405,757877,612
Events in quadrant C3,139,347861,954
Events in quadrant D3,621,308820,776

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141793
B0147392
C0141952
D0155702

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6974460.659593%
B6974911.304847%
C6974460.659593%
D69741091.562948%

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 9029 6976 0 0 0.00% 0.00%
B 9029 6976 9 9 0.10% 0.13%
C 9029 6976 0 0 0.00% 0.00%
D 9029 6976 56 56 0.62% 0.80%

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 15 36696 220.26 810 791 163.0
A 3 1 10997 62.61 810 791 163.0
A 0 226 7712 42.46 810 791 163.0
B 0 228 111537 714.91 822 804 154.9
B 4 80 25247 157.81 822 804 154.9
B 10 246 23583 147.06 822 804 154.9
C 1 16 23442 122.93 797 800 184.2
C 13 61 6438 30.61 797 800 184.2
C 9 54 3361 13.9 797 800 184.2
D 11 241 141805 734.86 787 760 191.9
D 13 169 140982 730.57 787 760 191.9
D 2 152 107095 554.01 787 760 191.9

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