ASTROSAT CZTI

Data Quality Report

Orbit 07154

Creation date: 2024-06-27T15:16:15.489595
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_029T02_9000000974_07154cztM0_level2.evt modeM0/AS1G06_029T02_9000000974_07154cztM0_level2_quad_clean.evt
Size (bytes)515,957,76078,609,600
Size492.1 MB 75.0 MB
Events in quadrant A3,405,124468,932
Events in quadrant B3,662,264478,237
Events in quadrant C3,614,251471,013
Events in quadrant D4,446,120451,518

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151883
B0156562
C0158692
D0179122

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73241752.389405%
B73241822.484981%
C73241742.375751%
D73243464.724194%

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 7484 7325 1 1 0.01% 0.01%
B 7484 7324 3 3 0.04% 0.04%
C 7484 7325 27 27 0.36% 0.37%
D 7484 7325 143 143 1.91% 1.95%

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 5 112 15713 82.51 874 853 180.1
A 13 248 10252 52.19 874 853 180.1
A 0 226 8271 41.19 874 853 180.1
B 0 214 140109 814.48 877 853 171.0
B 4 80 47395 272.22 877 853 171.0
B 0 219 40108 229.59 877 853 171.0
C 4 254 277526 1393.08 849 852 198.6
C 8 128 13548 63.93 849 852 198.6
C 8 112 6877 30.34 849 852 198.6
D 2 216 663575 3178.44 845 817 208.5
D 8 195 320912 1535.1 845 817 208.5
D 12 233 153860 733.96 845 817 208.5

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