ASTROSAT CZTI

Data Quality Report

Orbit 21046

Creation date: 2024-06-27T18:22:54.366578
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/AS1A05_104T04_9000003108_21046cztM0_level2.evt modeM0/AS1A05_104T04_9000003108_21046cztM0_level2_quad_clean.evt
Size (bytes)445,944,96093,746,880
Size425.3 MB 89.4 MB
Events in quadrant A3,148,734610,491
Events in quadrant B3,287,265631,898
Events in quadrant C3,224,195591,611
Events in quadrant D3,424,648572,787

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131992
B0136002
C0133982
D0143212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6199390.629134%
B6199821.322794%
C62001001.612903%
D61991091.758348%

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 8849 6201 0 0 0.00% 0.00%
B 8849 6201 0 0 0.00% 0.00%
C 8850 6202 0 0 0.00% 0.00%
D 8849 6201 73 73 0.82% 1.18%

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 13 254 7586 41.39 818 803 163.9
A 0 226 6871 37.02 818 803 163.9
A 3 137 6403 34.17 818 803 163.9
B 0 230 53079 342.18 822 804 152.8
B 12 111 18289 114.45 822 804 152.8
B 11 111 15836 98.4 822 804 152.8
C 14 238 124600 674.71 788 792 183.5
C 9 54 28527 151.15 788 792 183.5
C 13 61 5552 25.94 788 792 183.5
D 1 52 253539 1333.35 783 759 189.6
D 2 14 79112 413.29 783 759 189.6
D 13 172 72511 378.47 783 759 189.6

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