ASTROSAT CZTI

Data Quality Report

Orbit 14138

Creation date: 2024-06-27T16:50:50.135939
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/AS1A04_218T04_9000002086_14138cztM0_level2.evt modeM0/AS1A04_218T04_9000002086_14138cztM0_level2_quad_clean.evt
Size (bytes)489,165,12070,994,880
Size466.5 MB 67.7 MB
Events in quadrant A2,658,582448,920
Events in quadrant B2,737,188445,512
Events in quadrant C2,705,375452,518
Events in quadrant D6,343,971421,999

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01126327
B01138732
C01121751
D02248250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5443360.661400%
B5442410.753399%
C5432290.533873%
D5439119722.007722%

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 6748 5461 2 2 0.03% 0.04%
B 6747 5456 2 2 0.03% 0.04%
C 6745 5455 0 0 0.00% 0.00%
D 6748 5459 1010 1010 14.97% 18.50%

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 12 189 75654 565.4 659 645 132.7
A 8 15 40497 300.4 659 645 132.7
A 0 226 5924 39.79 659 645 132.7
B 10 244 85944 672.46 654 637 126.9
B 0 189 43395 337.05 654 637 126.9
B 0 214 29655 228.74 654 637 126.9
C 3 233 210650 1408.54 637 640 149.1
C 7 220 7130 43.53 637 640 149.1
C 13 61 4537 26.14 637 640 149.1
D 7 80 3619406 25532.0 590 575 141.7
D 8 195 196052 1379.15 590 575 141.7
D 2 152 106739 749.02 590 575 141.7

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