ASTROSAT CZTI

Data Quality Report

Orbit 19220

Creation date: 2024-06-27T18:00:21.873496
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/AS1A05_063T03_9000002840_19220cztM0_level2.evt modeM0/AS1A05_063T03_9000002840_19220cztM0_level2_quad_clean.evt
Size (bytes)207,120,96034,018,560
Size197.5 MB 32.4 MB
Events in quadrant A1,530,652211,295
Events in quadrant B1,452,019214,074
Events in quadrant C1,630,057207,180
Events in quadrant D1,474,281203,488

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A063280
B060920
C066320
D060740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2704441.627219%
B2704150.554734%
C2705301.109057%
D2705210.776340%

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 2704 2704 26 26 0.96% 0.96%
B 2704 2704 5 5 0.18% 0.18%
C 2705 2705 0 0 0.00% 0.00%
D 2705 2705 18 18 0.67% 0.67%

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 9 143 146872 2017.04 359 353 72.6
A 13 254 3097 37.78 359 353 72.6
A 0 226 3076 37.49 359 353 72.6
B 0 190 13022 185.7 359 351 68.2
B 3 64 11284 160.23 359 351 68.2
B 0 229 10255 145.15 359 351 68.2
C 3 233 203346 2480.78 351 354 81.8
C 14 238 56078 681.01 351 354 81.8
C 6 96 2698 28.65 351 354 81.8
D 11 176 87045 991.33 357 347 87.5
D 5 222 31533 356.59 357 347 87.5
D 2 234 11069 122.6 357 347 87.5

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