ASTROSAT CZTI

Data Quality Report

Orbit 33342

Creation date: 2024-06-27T20:47:41.644494
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_058T15_9000004786_33342cztM0_level2.evt modeM0/AS1A10_058T15_9000004786_33342cztM0_level2_quad_clean.evt
Size (bytes)615,499,20074,658,240
Size587.0 MB 71.2 MB
Events in quadrant A2,909,019485,960
Events in quadrant B4,757,102445,066
Events in quadrant C4,259,794462,863
Events in quadrant D6,309,747448,240

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125793
B0180112
C0164752
D0228832

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A598290.150451%
B598272412.102976%
C59823115.198930%
D59825869.796055%

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 7296 5983 1 1 0.01% 0.02%
B 7296 5983 440 440 6.03% 7.35%
C 7296 5983 273 273 3.74% 4.56%
D 7296 5983 476 476 6.52% 7.96%

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 12 16 123872 864.99 706 691 142.4
A 12 194 25273 172.62 706 691 142.4
A 13 6 22005 149.67 706 691 142.4
B 0 219 1107623 8491.41 673 656 130.4
B 5 172 729628 5591.86 673 656 130.4
B 4 170 97049 739.42 673 656 130.4
C 1 23 583124 3789.53 663 669 153.7
C 15 208 367650 2387.63 663 669 153.7
C 15 214 257082 1668.26 663 669 153.7
D 8 195 1583002 9489.94 651 636 166.7
D 2 250 863790 5176.6 651 636 166.7
D 12 218 407978 2442.96 651 636 166.7

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