ASTROSAT CZTI

Data Quality Report

Orbit 05088

Creation date: 2024-06-27T14:51:08.394929
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/AS1G05_103T01_9000000642_05088cztM0_level2.evt modeM0/AS1G05_103T01_9000000642_05088cztM0_level2_quad_clean.evt
Size (bytes)1,025,625,600152,654,400
Size978.1 MB 145.6 MB
Events in quadrant A6,073,309963,312
Events in quadrant B6,261,696970,885
Events in quadrant C5,836,908958,971
Events in quadrant D12,000,404821,580

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02700
B02700
C02700
D02700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0276014
B0276343
C0268653
D0446963

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A131341391.058322%
B131341190.906045%
C13134490.373078%
D13134209415.943353%

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 14664 13137 30 30 0.20% 0.23%
B 14664 13136 4 4 0.03% 0.03%
C 14664 13136 0 0 0.00% 0.00%
D 14664 13136 1709 1709 11.65% 13.01%

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 15 174 160842 518.14 1515 1483 307.6
A 0 50 68866 219.09 1515 1483 307.6
A 12 194 15243 44.74 1515 1483 307.6
B 0 219 129634 432.94 1535 1501 296.0
B 15 204 110978 369.9 1535 1501 296.0
B 15 54 42083 137.12 1535 1501 296.0
C 8 128 17953 47.76 1482 1491 344.7
C 1 16 13657 35.29 1482 1491 344.7
C 13 61 12134 30.88 1482 1491 344.7
D 13 235 2878103 8610.99 1362 1322 334.1
D 12 22 2556845 7649.38 1362 1322 334.1
D 13 239 726126 2169.54 1362 1322 334.1

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