ASTROSAT CZTI

Data Quality Report

Orbit 08403

Creation date: 2024-06-27T15:32:21.385934
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/AS1C02_033T01_9000001178_08403cztM0_level2.evt modeM0/AS1C02_033T01_9000001178_08403cztM0_level2_quad_clean.evt
Size (bytes)491,440,32092,557,440
Size468.7 MB 88.3 MB
Events in quadrant A3,574,901581,770
Events in quadrant B3,719,241594,913
Events in quadrant C3,260,487587,655
Events in quadrant D3,848,875546,580

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155413
B0157215
C0146253
D0164523

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70601892.677054%
B70591562.209945%
C7060731.033994%
D70601772.507082%

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 7610 7063 42 42 0.55% 0.59%
B 7610 7063 18 18 0.24% 0.25%
C 7610 7063 1 1 0.01% 0.01%
D 7610 7061 126 126 1.66% 1.78%

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 5 16 258860 1477.44 848 829 174.6
A 14 111 39990 224.23 848 829 174.6
A 0 254 13687 73.62 848 829 174.6
B 0 231 164380 994.34 855 832 164.5
B 0 214 64240 385.51 855 832 164.5
B 5 250 40998 244.2 855 832 164.5
C 1 16 11784 56.13 830 833 195.1
C 13 61 6455 28.82 830 833 195.1
C 8 128 3395 13.13 830 833 195.1
D 1 7 231627 1159.9 810 783 199.0
D 7 71 171199 856.27 810 783 199.0
D 14 34 86925 432.83 810 783 199.0

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