ASTROSAT CZTI

Data Quality Report

Orbit 01323

Creation date: 2024-06-27T14:10:58.982243
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/AS1G04_002T02_9000000230_01323cztM0_level2.evt modeM0/AS1G04_002T02_9000000230_01323cztM0_level2_quad_clean.evt
Size (bytes)1,181,914,560102,015,360
Size1.1 GB 97.3 MB
Events in quadrant A8,921,131665,338
Events in quadrant B9,738,236661,340
Events in quadrant C8,496,227645,789
Events in quadrant D8,182,326635,985

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0314232
B0337941
C0301941
D0292021

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69021592.303680%
B69021151.666184%
C6902741.072153%
D69021171.695161%

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 7102 6902 448 448 6.31% 6.49%
B 7102 6902 743 743 10.46% 10.76%
C 7102 6902 314 314 4.42% 4.55%
D 7102 6902 345 345 4.86% 5.00%

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 4 32 330728 624.88 2177 2196 525.7
A 15 127 77283 142.82 2177 2196 525.7
A 8 14 59857 109.67 2177 2196 525.7
B 8 4 776230 1466.52 2231 2242 527.8
B 12 52 172157 321.95 2231 2242 527.8
B 5 249 106032 196.66 2231 2242 527.8
C 15 241 340456 593.73 2035 2105 569.9
C 8 208 120693 208.09 2035 2105 569.9
C 3 79 35645 58.85 2035 2105 569.9
D 13 169 143629 224.77 2005 2079 629.7
D 10 125 130261 203.55 2005 2079 629.7
D 13 73 94164 146.23 2005 2079 629.7

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