ASTROSAT CZTI

Data Quality Report

Orbit 05769

Creation date: 2024-06-27T14:58:55.485071
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/AS1G06_002T01_9000000742_05769cztM0_level2.evt modeM0/AS1G06_002T01_9000000742_05769cztM0_level2_quad_clean.evt
Size (bytes)1,082,626,560194,198,400
Size1.0 GB 185.2 MB
Events in quadrant A7,856,3911,182,538
Events in quadrant B8,236,0171,185,340
Events in quadrant C7,685,6491,161,287
Events in quadrant D7,803,7031,126,332

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0376271429
B0379641510
C0375271546
D0381261616

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037822
B03777
C037721
D037810

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A17820740.415264%
B17786770.432925%
C17760400.225225%
D17746630.355010%

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 20802 18309 0 0 0.00% 0.00%
B 20802 18322 1 1 0.00% 0.01%
C 20802 18313 1 1 0.00% 0.01%
D 20802 18285 24 24 0.12% 0.13%

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 0 226 19735 42.63 2037 1992 416.2
A 12 194 19720 42.59 2037 1992 416.2
A 15 236 8612 15.91 2037 1992 416.2
B 0 219 128895 321.9 2058 2009 394.2
B 15 204 79280 196.03 2058 2009 394.2
B 12 111 38193 91.8 2058 2009 394.2
C 13 61 15768 30.14 1968 1975 457.7
C 8 222 5590 7.9 1968 1975 457.7
C 12 4 4838 6.26 1968 1975 457.7
D 8 195 121627 250.44 1962 1902 478.1
D 4 95 103396 212.3 1962 1902 478.1
D 11 241 50978 102.66 1962 1902 478.1

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