ASTROSAT CZTI

Data Quality Report

Orbit 43889

Creation date: 2024-06-27T22:56:54.424897
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_001T10_9000005910_43889cztM0_level2.fits modeM0/AS1C07_001T10_9000005910_43889cztM0_level2_quad_clean.evt
Size (bytes)211,795,20046,031,040
Size202.0 MB 43.9 MB
Events in quadrant A2,970,828292,128
Events in quadrant B1,368,743314,698
Events in quadrant C1,390,922301,417
Events in quadrant D1,878,632275,588

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A1139740967749672139736760975406
B1-1-1
C1-1-1
D1-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110361
B062341
C062301
D077081

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A29471996.752630%
B2947170.576858%
C294780.271463%
D2947622.103834%

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 2947 2947 186 186 6.31% 6.31%
B 2947 2947 8 8 0.27% 0.27%
C 2947 2947 4 4 0.14% 0.14%
D 2947 2947 55 55 1.87% 1.87%

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 15 223 607101 9414.26 300 293 64.5
A 15 222 538814 8354.83 300 293 64.5
A 10 83 489370 7587.74 300 293 64.5
B 10 245 35655 561.67 311 300 62.9
B 4 170 35286 555.8 311 300 62.9
B 5 172 21900 343.15 311 300 62.9
C 3 233 112700 1501.8 309 311 74.8
C 14 254 37724 499.93 309 311 74.8
C 15 174 19210 252.54 309 311 74.8
D 12 233 181248 2320.34 304 294 78.0
D 2 249 127026 1625.06 304 294 78.0
D 1 52 98821 1263.39 304 294 78.0

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