ASTROSAT CZTI

Data Quality Report

Orbit 23746

Creation date: 2024-06-27T18:58:14.618031
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/AS1A08_009T01_9000003516_23746cztM0_level2.evt modeM0/AS1A08_009T01_9000003516_23746cztM0_level2_quad_clean.evt
Size (bytes)60,194,88017,208,000
Size57.4 MB 16.4 MB
Events in quadrant A429,171112,185
Events in quadrant B443,046115,789
Events in quadrant C443,629111,355
Events in quadrant D441,266109,816

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019142
B019261
C019411
D019271

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A912495.372807%
B913535.805038%
C913535.805038%
D913192.081051%

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 912 912 0 0 0.00% 0.00%
B 913 913 0 0 0.00% 0.00%
C 913 913 0 0 0.00% 0.00%
D 913 913 0 0 0.00% 0.00%

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 13 254 1496 56.37 111 108 24.6
A 3 137 1057 38.54 111 108 24.6
A 0 226 965 34.8 111 108 24.6
B 0 229 9106 382.56 110 107 23.5
B 12 111 2795 114.27 110 107 23.5
B 11 111 2376 96.46 110 107 23.5
C 14 238 16265 612.65 104 104 26.4
C 7 247 15776 594.11 104 104 26.4
C 10 91 3228 118.43 104 104 26.4
D 8 195 36542 1330.17 106 102 27.4
D 2 234 2800 98.49 106 102 27.4
D 13 174 2481 86.84 106 102 27.4

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