ASTROSAT CZTI

Data Quality Report

Orbit 26632

Creation date: 2024-06-27T19:31:11.501727
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/AS1A09_145T01_9000003848_26632cztM0_level2.evt modeM0/AS1A09_145T01_9000003848_26632cztM0_level2_quad_clean.evt
Size (bytes)540,912,96096,730,560
Size515.9 MB 92.2 MB
Events in quadrant A3,219,947651,216
Events in quadrant B4,109,076645,226
Events in quadrant C3,282,026618,172
Events in quadrant D5,369,565601,306

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129760
B0165550
C0133100
D0197550

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5920661.114865%
B59211151.942239%
C5921831.401790%
D592079013.344595%

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 7140 5921 7 7 0.10% 0.12%
B 7141 5922 13 13 0.18% 0.22%
C 7141 5922 0 0 0.00% 0.00%
D 7140 5921 698 698 9.78% 11.79%

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 13 59241 357.5 818 806 163.5
A 13 254 9371 52.4 818 806 163.5
A 0 226 7050 38.2 818 806 163.5
B 0 189 879827 5889.65 796 780 149.3
B 10 245 90940 604.07 796 780 149.3
B 12 111 17349 111.01 796 780 149.3
C 3 233 157834 883.42 765 773 177.8
C 14 238 126230 705.66 765 773 177.8
C 15 208 7410 37.33 765 773 177.8
D 7 80 2003170 11148.33 741 722 179.6
D 2 250 272885 1515.23 741 722 179.6
D 1 52 212058 1176.58 741 722 179.6

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