ASTROSAT CZTI

Data Quality Report

Orbit 43301

Creation date: 2024-06-27T22:50:20.704331
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/AS1A12_089T01_9000005864_43301cztM0_level2.fits modeM0/AS1A12_089T01_9000005864_43301cztM0_level2_quad_clean.evt
Size (bytes)308,160,00087,125,760
Size293.9 MB 83.1 MB
Events in quadrant A3,259,241580,978
Events in quadrant B2,609,418606,326
Events in quadrant C2,488,903581,748
Events in quadrant D2,667,927525,789

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127612
B0107522
C0101632
D0111682

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A48961072.185458%
B4896861.756536%
C4896100.204248%
D4896631.286765%

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 7020 4897 94 94 1.34% 1.92%
B 7020 4897 60 60 0.85% 1.23%
C 7020 4897 8 8 0.11% 0.16%
D 7020 4897 53 53 0.75% 1.08%

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 560974 4853.93 569 558 115.5
A 15 237 375264 3245.44 569 558 115.5
A 12 189 99293 855.17 569 558 115.5
B 5 172 178406 1600.46 572 558 111.1
B 0 186 75845 677.51 572 558 111.1
B 5 255 38081 337.67 572 558 111.1
C 15 214 210234 1599.5 564 568 131.1
C 7 220 35124 263.62 564 568 131.1
C 15 159 27563 205.94 564 568 131.1
D 2 96 168273 1243.4 559 545 134.9
D 13 249 166723 1231.91 559 545 134.9
D 2 249 40576 296.76 559 545 134.9

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