ASTROSAT CZTI

Data Quality Report

Orbit 02209

Creation date: 2024-06-27T14:15:18.341607
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/AS1T01_072T04_9000000342_02209cztM0_level2.evt modeM0/AS1T01_072T04_9000000342_02209cztM0_level2_quad_clean.evt
Size (bytes)764,801,28077,941,440
Size729.4 MB 74.3 MB
Events in quadrant A3,667,375543,584
Events in quadrant B2,739,268563,003
Events in quadrant C13,738,273299,491
Events in quadrant D2,609,491532,545

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147701
B0122551
C0449231
D0122815

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B110
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59724247.099799%
B6011180.299451%
C60116011100.000000%
D6009120.199700%

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 6892 5973 345 345 5.01% 5.78%
B 6931 6012 0 0 0.00% 0.00%
C 6931 6012 5438 5438 78.46% 90.45%
D 6931 6011 7 7 0.10% 0.12%

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 15 171 1118859 8215.88 652 636 136.1
A 10 2 15696 110.65 652 636 136.1
A 3 1 11891 82.69 652 636 136.1
B 15 85 30320 223.05 688 672 132.9
B 4 158 23699 173.24 688 672 132.9
B 14 167 11463 81.18 688 672 132.9
C 0 187 10361194 73124.15 452 443 141.7
C 12 180 298125 2100.98 452 443 141.7
C 14 223 281636 1984.61 452 443 141.7
D 9 64 48798 307.37 653 638 156.7
D 10 149 20823 128.83 653 638 156.7
D 10 154 17229 105.89 653 638 156.7

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