ASTROSAT CZTI

Data Quality Report

Orbit 06163

Creation date: 2024-06-27T15:03:36.836401
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/AS1A02_006T01_9000000802_06163cztM0_level2.evt modeM0/AS1A02_006T01_9000000802_06163cztM0_level2_quad_clean.evt
Size (bytes)493,418,88083,615,040
Size470.6 MB 79.7 MB
Events in quadrant A3,496,100512,412
Events in quadrant B4,092,615512,327
Events in quadrant C3,381,890511,581
Events in quadrant D3,485,226496,189

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01512015
B01685619
C01503218
D01535622

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71711271.771022%
B71692443.403543%
C71691151.604129%
D71661201.674574%

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 9306 7175 0 0 0.00% 0.00%
B 9306 7175 73 73 0.78% 1.02%
C 9306 7174 0 0 0.00% 0.00%
D 9306 7175 5 5 0.05% 0.07%

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 112859 626.25 878 861 178.8
A 0 226 8485 42.63 878 861 178.8
A 12 194 8457 42.47 878 861 178.8
B 3 64 386606 2317.85 877 858 166.4
B 0 219 223572 1338.22 877 858 166.4
B 4 81 45202 266.45 877 858 166.4
C 1 16 20845 101.33 859 864 197.2
C 13 61 6649 29.34 859 864 197.2
C 12 16 5409 23.05 859 864 197.2
D 13 105 76289 358.43 858 832 210.5
D 13 169 57354 268.48 858 832 210.5
D 5 97 40088 186.47 858 832 210.5

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