ASTROSAT CZTI

Data Quality Report

Orbit 43372

Creation date: 2024-06-27T22:51:10.130968
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_143T01_9000005870_43372cztM0_level2.fits modeM0/AS1A09_143T01_9000005870_43372cztM0_level2_quad_clean.evt
Size (bytes)287,487,36089,015,040
Size274.2 MB 84.9 MB
Events in quadrant A2,823,736594,046
Events in quadrant B2,400,230618,386
Events in quadrant C2,460,932594,969
Events in quadrant D2,567,086538,245

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0300
C0300
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114452
B0104652
C0102432
D0113392

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4997450.900540%
B4997120.240144%
C499730.060036%
D4997751.500901%

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 7030 4998 27 27 0.38% 0.54%
B 7030 4998 6 6 0.09% 0.12%
C 7030 4998 0 0 0.00% 0.00%
D 7030 4998 66 66 0.94% 1.32%

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 542407 4724.58 559 549 114.7
A 15 237 105098 911.59 559 549 114.7
A 13 6 9479 77.86 559 549 114.7
B 0 189 121452 1117.03 561 545 108.2
B 3 112 31664 287.5 561 545 108.2
B 4 173 13454 119.26 561 545 108.2
C 15 214 205505 1586.29 552 555 129.2
C 3 233 83232 639.91 552 555 129.2
C 0 207 13373 99.21 552 555 129.2
D 12 6 186638 1438.06 541 527 129.4
D 12 218 156121 1202.26 541 527 129.4
D 13 249 80961 621.51 541 527 129.4

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