ASTROSAT CZTI

Data Quality Report

Orbit 03699

Creation date: 2024-06-27T14:32:34.294569
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_009T01_9000000482_03699cztM0_level2.evt modeM0/AS1G05_009T01_9000000482_03699cztM0_level2_quad_clean.evt
Size (bytes)1,559,312,640203,970,240
Size1.5 GB 194.5 MB
Events in quadrant A13,388,6881,162,091
Events in quadrant B12,136,8701,248,308
Events in quadrant C8,770,1451,244,287
Events in quadrant D11,637,5081,204,395

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03920
B03920
C03920
D03920

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0532935
B0489424
C0393914
D0487254

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1911718659.755715%
B191174482.343464%
C19117590.308626%
D191178064.216143%

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 21332 19120 1464 1464 6.86% 7.66%
B 21332 19121 262 262 1.23% 1.37%
C 21332 19121 13 13 0.06% 0.07%
D 21332 19121 625 625 2.93% 3.27%

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 13 251 5068195 11810.15 2094 2047 429.0
A 0 50 83119 188.99 2094 2047 429.0
A 13 164 70341 159.21 2094 2047 429.0
B 14 167 1259225 2922.62 2218 2162 430.1
B 15 204 1042283 2418.24 2218 2162 430.1
B 5 70 758470 1758.38 2218 2162 430.1
C 2 53 204845 404.31 2149 2156 501.3
C 9 247 63241 121.85 2149 2156 501.3
C 1 16 45395 86.25 2149 2156 501.3
D 13 223 2043492 4003.63 2103 2039 509.9
D 9 35 748997 1464.91 2103 2039 509.9
D 13 239 403452 787.24 2103 2039 509.9

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