ASTROSAT CZTI

Data Quality Report

Orbit 04654

Creation date: 2024-06-27T14:45:08.908046
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_218T03_9000000582_04654cztM0_level2.evt modeM0/AS1G05_218T03_9000000582_04654cztM0_level2_quad_clean.evt
Size (bytes)842,820,480132,526,080
Size803.8 MB 126.4 MB
Events in quadrant A5,518,420815,679
Events in quadrant B6,822,794814,454
Events in quadrant C5,343,620777,946
Events in quadrant D7,003,458751,220

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02500
B02500
C02500
D02500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0251813
B0283634
C0250172
D0295102

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A123561731.400129%
B123553012.436261%
C123561381.116866%
D123563562.881191%

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 13566 12358 1 1 0.01% 0.01%
B 13566 12358 80 80 0.59% 0.65%
C 13566 12357 0 0 0.00% 0.00%
D 13566 12358 185 185 1.36% 1.50%

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 7 16 44312 147.35 1415 1382 291.4
A 12 194 14387 44.64 1415 1382 291.4
A 0 226 13894 42.94 1415 1382 291.4
B 8 3 292513 1051.78 1423 1385 276.8
B 10 16 284754 1023.75 1423 1385 276.8
B 14 167 272179 978.32 1423 1385 276.8
C 13 61 11285 31.11 1364 1365 318.8
C 9 68 7815 20.23 1364 1365 318.8
C 9 247 6048 14.69 1364 1365 318.8
D 13 235 676288 2086.18 1347 1304 323.5
D 12 110 379695 1169.5 1347 1304 323.5
D 8 112 248677 764.56 1347 1304 323.5

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