ASTROSAT CZTI

Data Quality Report

Orbit 41180

Creation date: 2024-06-27T22:25:19.558173
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_101T01_9000005612_41180cztM0_level2.fits modeM0/AS1A12_101T01_9000005612_41180cztM0_level2_quad_clean.evt
Size (bytes)506,741,76077,564,160
Size483.3 MB 74.0 MB
Events in quadrant A2,884,484585,525
Events in quadrant B2,480,102598,323
Events in quadrant C10,014,624268,711
Events in quadrant D2,951,217511,875

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119133
B0115262
C0334442
D0131112

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5487110.200474%
B5487200.364498%
C5487307255.986878%
D54872444.446874%

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 7160 5488 4 4 0.06% 0.07%
B 7160 5488 11 11 0.15% 0.20%
C 7160 5488 2899 2899 40.49% 52.82%
D 7160 5488 227 227 3.17% 4.14%

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 516208 4352.36 573 561 118.5
A 12 189 99204 832.6 573 561 118.5
A 2 79 36620 304.36 573 561 118.5
B 0 229 131180 1187.9 568 554 110.0
B 0 190 48461 435.66 568 554 110.0
B 5 255 48235 433.6 568 554 110.0
C 9 54 8115837 87930.22 394 396 92.3
C 0 10 184508 1994.84 394 396 92.3
C 15 214 173270 1873.08 394 396 92.3
D 13 249 636379 4736.65 544 527 134.2
D 2 249 114556 849.44 544 527 134.2
D 2 120 113948 844.91 544 527 134.2

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