ASTROSAT CZTI

Data Quality Report

Orbit 33418

Creation date: 2024-06-27T20:48:36.769637
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/AS1C07_001T03_9000004790_33418cztM0_level2.evt modeM0/AS1C07_001T03_9000004790_33418cztM0_level2_quad_clean.evt
Size (bytes)195,785,28027,581,760
Size186.7 MB 26.3 MB
Events in quadrant A1,181,501165,533
Events in quadrant B1,440,187165,533
Events in quadrant C1,228,766167,401
Events in quadrant D1,909,981159,613

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050110
B060100
C052340
D073630

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A245300.000000%
B2453773.139013%
C245300.000000%
D2453180.733795%

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 2453 2453 0 0 0.00% 0.00%
B 2453 2453 59 59 2.41% 2.41%
C 2453 2453 0 0 0.00% 0.00%
D 2453 2453 10 10 0.41% 0.41%

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 47 157386 2903.7 263 258 54.1
A 13 254 4338 75.4 263 258 54.1
A 13 6 4254 73.85 263 258 54.1
B 5 172 283581 5487.25 263 256 51.6
B 5 255 57715 1112.83 263 256 51.6
B 0 213 34131 656.07 263 256 51.6
C 15 214 104258 1676.35 263 265 62.0
C 10 49 34269 548.14 263 265 62.0
C 9 187 25009 398.87 263 265 62.0
D 8 195 800916 12256.34 258 249 65.3
D 13 249 27748 420.95 258 249 65.3
D 12 6 26233 397.75 258 249 65.3

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