ASTROSAT CZTI

Data Quality Report

Orbit 17063

Creation date: 2024-06-27T17:31:31.611659
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/AS1T03_004T01_9000002532_17063cztM0_level2.evt modeM0/AS1T03_004T01_9000002532_17063cztM0_level2_quad_clean.evt
Size (bytes)474,304,32089,766,720
Size452.3 MB 85.6 MB
Events in quadrant A3,040,838580,876
Events in quadrant B3,214,624600,555
Events in quadrant C4,532,499559,104
Events in quadrant D3,151,808541,196

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130272
B0135002
C0183262
D0135992

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6261200.319438%
B6261370.590960%
C6261931.485386%
D6261981.565245%

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 7497 6263 1 1 0.01% 0.02%
B 7497 6263 1 1 0.01% 0.02%
C 7497 6263 1 1 0.01% 0.02%
D 7497 6263 65 65 0.87% 1.04%

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 4 2 28855 180.32 782 766 155.8
A 12 189 9291 54.73 782 766 155.8
A 0 226 6700 38.09 782 766 155.8
B 6 36 61342 404.4 791 773 149.8
B 0 197 43049 282.27 791 773 149.8
B 12 111 17193 109.63 791 773 149.8
C 3 233 1467358 8350.6 754 762 175.6
C 14 238 115775 654.87 754 762 175.6
C 13 61 5397 26.39 754 762 175.6
D 10 70 181267 982.21 753 731 183.8
D 5 222 33535 178.47 753 731 183.8
D 12 110 33394 177.7 753 731 183.8

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