ASTROSAT CZTI

Data Quality Report

Orbit 29552

Creation date: 2024-06-27T20:05:25.792699
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/AS1A10_104T02_9000004258_29552cztM0_level2.evt modeM0/AS1A10_104T02_9000004258_29552cztM0_level2_quad_clean.evt
Size (bytes)386,665,92067,484,160
Size368.8 MB 64.4 MB
Events in quadrant A1,607,763462,106
Events in quadrant B1,824,758471,876
Events in quadrant C1,791,215441,040
Events in quadrant D6,229,615401,224

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A075650
B080760
C078110
D0211060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A377700.000000%
B3778431.138168%
C37781403.705664%
D377858115.378507%

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 3777 3777 0 0 0.00% 0.00%
B 3778 3778 27 27 0.71% 0.71%
C 3778 3778 0 0 0.00% 0.00%
D 3778 3778 676 676 17.89% 17.89%

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 7691 86.14 413 405 84.6
A 0 13 5531 60.6 413 405 84.6
A 3 137 4050 43.09 413 405 84.6
B 5 255 142949 1804.23 414 404 79.0
B 0 156 34859 436.11 414 404 79.0
B 12 111 9487 114.97 414 404 79.0
C 14 238 114175 1209.87 397 399 94.0
C 14 254 71308 754.03 397 399 94.0
C 3 233 29978 314.54 397 399 94.0
D 8 195 4229541 45248.4 390 379 93.5
D 7 80 219301 2342.27 390 379 93.5
D 12 33 177074 1890.48 390 379 93.5

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