ASTROSAT CZTI

Data Quality Report

Orbit 14106

Creation date: 2024-06-27T16:50:38.437864
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/AS1G08_028T01_9000002080_14106cztM0_level2.evt modeM0/AS1G08_028T01_9000002080_14106cztM0_level2_quad_clean.evt
Size (bytes)99,489,60030,133,440
Size94.9 MB 28.7 MB
Events in quadrant A706,811202,139
Events in quadrant B769,132202,508
Events in quadrant C718,505200,283
Events in quadrant D712,266194,546

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031042
B032431
C031051
D031801

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A152380.525279%
B1523181.181878%
C152310.065660%
D152370.459619%

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 1524 1524 0 0 0.00% 0.00%
B 1524 1524 4 4 0.26% 0.26%
C 1524 1524 0 0 0.00% 0.00%
D 1524 1524 1 1 0.07% 0.07%

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 11 47 2847 68.93 182 178 38.7
A 0 226 1634 37.61 182 178 38.7
A 8 15 1543 35.26 182 178 38.7
B 10 16 45399 1222.64 182 177 37.0
B 4 48 8064 213.24 182 177 37.0
B 4 80 4359 113.07 182 177 37.0
C 3 233 23215 541.79 176 177 42.5
C 8 128 4332 97.71 176 177 42.5
C 8 112 2012 43.15 176 177 42.5
D 10 70 17814 393.8 174 169 44.8
D 2 152 16880 372.96 174 169 44.8
D 10 172 9464 207.45 174 169 44.8

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