ASTROSAT CZTI

Data Quality Report

Orbit 08696

Creation date: 2024-06-27T15:36:01.877955
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/AS1G07_024T01_9000001206_08696cztM0_level2.evt modeM0/AS1G07_024T01_9000001206_08696cztM0_level2_quad_clean.evt
Size (bytes)98,962,56027,944,640
Size94.4 MB 26.7 MB
Events in quadrant A670,140186,077
Events in quadrant B794,485187,132
Events in quadrant C719,728178,555
Events in quadrant D700,670175,755

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0331447
B0350061
C0349375
D0341061

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A160790.560050%
B1605100.623053%
C1603261.621959%
D160360.374298%

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 1630 1629 5 5 0.31% 0.31%
B 1630 1628 8 8 0.49% 0.49%
C 1630 1627 22 22 1.35% 1.35%
D 1629 1628 4 4 0.25% 0.25%

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 15 174 18597 510.94 168 164 36.1
A 0 226 1644 41.02 168 164 36.1
A 12 194 1588 39.47 168 164 36.1
B 0 219 59712 1796.67 168 164 33.1
B 10 16 22508 674.16 168 164 33.1
B 0 214 15736 469.83 168 164 33.1
C 14 234 77749 1977.06 164 164 39.2
C 13 61 1328 29.66 164 164 39.2
C 8 222 1309 29.18 164 164 39.2
D 2 152 30470 731.2 166 161 41.5
D 2 14 18938 452.99 166 161 41.5
D 9 64 12332 293.62 166 161 41.5

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