ASTROSAT CZTI

Data Quality Report

Orbit 06684

Creation date: 2024-06-27T15:10:16.423157
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_102T01_9000000912_06684cztM0_level2.evt modeM0/AS1G06_102T01_9000000912_06684cztM0_level2_quad_clean.evt
Size (bytes)567,043,20066,870,720
Size540.8 MB 63.8 MB
Events in quadrant A3,129,514408,496
Events in quadrant B2,979,318408,089
Events in quadrant C2,738,335409,397
Events in quadrant D7,923,709384,295

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132382
B0129801
C0122931
D0275041

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5932861.449764%
B5932671.129467%
C5932350.590020%
D5932161127.157788%

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 7067 5933 12 12 0.17% 0.20%
B 7067 5933 9 9 0.13% 0.15%
C 7067 5933 0 0 0.00% 0.00%
D 7067 5933 1175 1175 16.63% 19.80%

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 8 15 176114 1215.09 712 697 144.4
A 13 251 163966 1130.94 712 697 144.4
A 4 2 19184 128.06 712 697 144.4
B 0 219 50165 361.31 718 701 136.9
B 0 214 31307 223.56 718 701 136.9
B 4 173 27861 198.39 718 701 136.9
C 9 54 11723 67.84 698 703 162.4
C 13 61 5578 30.01 698 703 162.4
C 0 235 2537 11.29 698 703 162.4
D 2 33 2916447 19864.83 599 582 146.8
D 8 195 2543471 17323.87 599 582 146.8
D 12 221 81551 551.62 599 582 146.8

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