ASTROSAT CZTI

Data Quality Report

Orbit 03598

Creation date: 2024-06-27T14:31:26.781916
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_246T04_9000000472_03598cztM0_level2.evt modeM0/AS1G05_246T04_9000000472_03598cztM0_level2_quad_clean.evt
Size (bytes)1,521,887,040196,289,280
Size1.4 GB 187.2 MB
Events in quadrant A9,570,2421,173,908
Events in quadrant B9,760,7061,178,349
Events in quadrant C16,828,1061,120,857
Events in quadrant D8,628,3721,140,868

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0413297
B0416544
C0631389
D0405084

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03920
B03920
C03920
D03920

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A193142101.087294%
B193152491.289154%
C1931416208.387698%
D193151971.019933%

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 21475 19320 21 21 0.10% 0.11%
B 21475 19320 39 39 0.18% 0.20%
C 21475 19320 1166 1166 5.43% 6.04%
D 21475 19320 65 65 0.30% 0.34%

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 701081 1558.2 2191 2140 448.6
A 13 164 138849 304.78 2191 2140 448.6
A 3 1 136382 299.28 2191 2140 448.6
B 15 204 620304 1437.06 2226 2167 430.1
B 4 81 215408 495.75 2226 2167 430.1
B 14 167 204313 469.96 2226 2167 430.1
C 2 53 7085882 14527.07 2090 2099 487.6
C 9 247 1412723 2892.84 2090 2099 487.6
C 15 208 85350 170.73 2090 2099 487.6
D 13 223 139914 269.05 2131 2070 512.3
D 10 172 137827 264.98 2131 2070 512.3
D 13 239 75278 142.89 2131 2070 512.3

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
Veto Counter