ASTROSAT CZTI

Data Quality Report

Orbit 05071

Creation date: 2024-06-27T14:50:55.612574
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_218T04_9000000640_05071cztM0_level2.evt modeM0/AS1G05_218T04_9000000640_05071cztM0_level2_quad_clean.evt
Size (bytes)612,138,24070,657,920
Size583.8 MB 67.4 MB
Events in quadrant A4,062,840409,984
Events in quadrant B4,057,293409,676
Events in quadrant C3,633,543404,344
Events in quadrant D6,248,574366,355

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01726
B01726
C01722
D017212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0186651087
B0184231025
C017308803
D0261612123

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78952583.267891%
B78972653.355705%
C79411581.989674%
D777390711.668596%

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 8700 8271 40 40 0.46% 0.48%
B 8698 8267 9 9 0.10% 0.11%
C 8701 8282 0 0 0.00% 0.00%
D 8700 8222 486 486 5.59% 5.91%

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 273204 1391.34 943 916 195.7
A 0 50 146190 742.32 943 916 195.7
A 13 251 16118 77.68 943 916 195.7
B 15 204 165754 894.84 947 924 184.2
B 0 219 95501 513.45 947 924 184.2
B 7 221 58720 313.77 947 924 184.2
C 1 16 45241 206.9 918 919 214.2
C 13 61 7402 30.26 918 919 214.2
C 8 222 4915 18.65 918 919 214.2
D 13 239 1156859 5444.09 859 829 212.3
D 7 237 706341 3322.47 859 829 212.3
D 2 33 394931 1855.95 859 829 212.3

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