ASTROSAT CZTI

Data Quality Report

Orbit 10062

Creation date: 2024-06-27T15:54:30.811434
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/AS1A03_084T01_9000001440_10062cztM0_level2.evt modeM0/AS1A03_084T01_9000001440_10062cztM0_level2_quad_clean.evt
Size (bytes)401,679,36076,135,680
Size383.1 MB 72.6 MB
Events in quadrant A3,145,848476,756
Events in quadrant B2,912,200485,870
Events in quadrant C2,617,095477,530
Events in quadrant D3,089,648454,705

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013585264
B012756233
C012122159
D013396237

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5867661.124936%
B5866290.494374%
C589160.101850%
D5872350.596049%

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 6835 5968 46 46 0.67% 0.77%
B 6835 5967 9 9 0.13% 0.15%
C 6835 5970 1 1 0.01% 0.02%
D 6835 5966 17 17 0.25% 0.28%

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 0 8 247043 1755.33 687 673 140.4
A 15 239 151947 1077.79 687 673 140.4
A 13 251 42403 297.32 687 673 140.4
B 4 239 66095 491.99 693 676 133.0
B 0 214 50047 371.3 693 676 133.0
B 12 0 32448 238.95 693 676 133.0
C 14 67 6286 35.82 667 670 156.8
C 14 234 6269 35.71 667 670 156.8
C 13 61 5175 28.74 667 670 156.8
D 4 95 147169 816.04 656 640 179.6
D 1 52 113466 628.34 656 640 179.6
D 8 195 77932 430.45 656 640 179.6

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