ASTROSAT CZTI

Data Quality Report

Orbit 16004

Creation date: 2024-06-27T17:16:40.918969
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/AS1T02_090T01_9000002364_16004cztM0_level2.evt modeM0/AS1T02_090T01_9000002364_16004cztM0_level2_quad_clean.evt
Size (bytes)463,464,00083,802,240
Size442.0 MB 79.9 MB
Events in quadrant A3,114,254538,867
Events in quadrant B3,314,448543,445
Events in quadrant C3,184,527519,366
Events in quadrant D4,004,353505,956

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130152
B0134681
C0129471
D0158291

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6158701.136733%
B6158941.526470%
C6158881.429035%
D61582453.978564%

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 7179 6159 4 4 0.06% 0.06%
B 7179 6159 22 22 0.31% 0.36%
C 7179 6159 6 6 0.08% 0.10%
D 7179 6159 174 174 2.42% 2.83%

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 10 253 63846 394.9 786 772 159.7
A 15 174 10772 62.61 786 772 159.7
A 13 210 9989 57.71 786 772 159.7
B 7 220 117147 784.6 778 760 148.3
B 5 65 54806 364.34 778 760 148.3
B 3 209 30736 202.08 778 760 148.3
C 3 233 161952 920.59 745 751 175.1
C 14 238 115802 657.04 745 751 175.1
C 13 61 5361 26.33 745 751 175.1
D 12 218 936016 5037.51 754 733 185.7
D 7 223 60080 319.65 754 733 185.7
D 10 70 46092 244.31 754 733 185.7

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