ASTROSAT CZTI

Data Quality Report

Orbit 06710

Creation date: 2024-06-27T15:10:40.153854
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_135T02_9000000918_06710cztM0_level2.evt modeM0/AS1G06_135T02_9000000918_06710cztM0_level2_quad_clean.evt
Size (bytes)185,120,64029,427,840
Size176.5 MB 28.1 MB
Events in quadrant A1,089,102197,177
Events in quadrant B997,645197,409
Events in quadrant C898,008193,561
Events in quadrant D2,482,440156,086

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A045700
B042530
C040340
D087740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2014221.092354%
B2014140.695134%
C201410.049652%
D201455927.755710%

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 2014 2014 7 7 0.35% 0.35%
B 2014 2014 7 7 0.35% 0.35%
C 2014 2014 0 0 0.00% 0.00%
D 2014 2014 457 457 22.69% 22.69%

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 14 111 195929 4035.31 227 221 48.5
A 8 15 9610 193.59 227 221 48.5
A 4 2 8354 167.69 227 221 48.5
B 0 214 39193 840.03 231 225 46.4
B 0 228 38600 827.25 231 225 46.4
B 11 51 18116 385.68 231 225 46.4
C 8 128 3991 67.99 227 227 55.4
C 9 247 2472 40.55 227 227 55.4
C 8 112 2168 35.06 227 227 55.4
D 2 33 1538040 30451.32 198 191 50.5
D 8 195 169116 3344.92 198 191 50.5
D 2 152 16268 318.34 198 191 50.5

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