ASTROSAT CZTI

Data Quality Report

Orbit 06002

Creation date: 2024-06-27T15:01:39.890543
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/AS1G06_086T01_9000000774_06002cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_06002cztM0_level2_quad_clean.evt
Size (bytes)2,171,995,200599,330,880
Size2.0 GB 571.6 MB
Events in quadrant A16,491,5744,003,088
Events in quadrant B16,649,2564,081,687
Events in quadrant C14,976,3183,951,455
Events in quadrant D15,351,2363,771,204

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06982
B06984
C069810
D06980

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0370
C0371
D0370

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A074102686
B073360660
C070524591
D072486590

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A341537832.292624%
B341514721.382097%
C341742690.787148%
D341815881.720254%

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 38057 34430 227 227 0.60% 0.66%
B 38057 34438 34 34 0.09% 0.10%
C 38057 34447 10 10 0.03% 0.03%
D 38057 34442 105 105 0.28% 0.30%

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 15 236 731285 932.04 3868 3783 780.5
A 4 2 371150 470.65 3868 3783 780.5
A 15 234 115183 142.72 3868 3783 780.5
B 0 214 406251 539.35 3915 3819 746.1
B 15 204 266675 352.29 3915 3819 746.1
B 0 219 199061 261.67 3915 3819 746.1
C 9 54 122028 135.8 3770 3776 870.8
C 8 128 43092 45.15 3770 3776 870.8
C 1 16 39676 41.23 3770 3776 870.8
D 2 14 264386 284.53 3759 3632 916.4
D 2 63 210588 225.83 3759 3632 916.4
D 13 61 156540 166.85 3759 3632 916.4

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