ASTROSAT CZTI

Data Quality Report

Orbit 43917

Creation date: 2024-06-27T22:57:09.904846
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/AS1A13_009T02_9000005914_43917cztM0_level2.fits modeM0/AS1A13_009T02_9000005914_43917cztM0_level2_quad_clean.evt
Size (bytes)1,213,868,160248,374,080
Size1.1 GB 236.9 MB
Events in quadrant A13,857,4801,640,951
Events in quadrant B9,015,6581,706,465
Events in quadrant C9,003,0231,644,725
Events in quadrant D11,813,8341,416,905

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03280
B03280
C03280
D03280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0533212
B0378562
C0380362
D0464382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A160917724.797713%
B160915053.138400%
C160923442.137708%
D1609212127.531693%

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 16731 16094 427 427 2.55% 2.65%
B 16731 16094 181 181 1.08% 1.12%
C 16732 16095 193 193 1.15% 1.20%
D 16732 16095 960 960 5.74% 5.96%

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 10 83 2433277 6667.02 1760 1722 364.7
A 15 223 1924522 5272.08 1760 1722 364.7
A 15 222 1798024 4925.24 1760 1722 364.7
B 5 235 1214788 3471.07 1768 1711 349.5
B 15 36 287388 817.43 1768 1711 349.5
B 0 183 117704 331.9 1768 1711 349.5
C 15 158 1369829 3356.97 1739 1749 407.5
C 3 233 491396 1201.49 1739 1749 407.5
C 14 254 141294 342.41 1739 1749 407.5
D 13 249 900012 2073.78 1704 1652 433.2
D 12 233 885264 2039.74 1704 1652 433.2
D 7 204 689760 1588.43 1704 1652 433.2

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