ASTROSAT CZTI

Data Quality Report

Orbit 46113

Creation date: 2024-06-27T23:19:23.705584
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/AS1C07_001T10_9000006170_46113cztM0_level2.fits modeM0/AS1C07_001T10_9000006170_46113cztM0_level2_quad_clean.evt
Size (bytes)711,207,36095,575,680
Size678.3 MB 91.1 MB
Events in quadrant A5,753,263719,411
Events in quadrant B3,125,379772,731
Events in quadrant C2,925,388756,997
Events in quadrant D14,030,315202,977

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215630
B0135710
C0131580
D0460292

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63421872.948597%
B6343570.898628%
C6343250.394135%
D6342472874.550615%

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 7577 6343 32 32 0.42% 0.50%
B 7578 6344 18 18 0.24% 0.28%
C 7578 6344 4 4 0.05% 0.06%
D 7577 6343 4341 4341 57.29% 68.44%

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 83 2848104 19577.31 705 690 145.4
A 9 191 116172 793.99 705 690 145.4
A 13 248 39589 267.45 705 690 145.4
B 0 190 93363 672.38 721 699 137.8
B 3 112 55101 394.75 721 699 137.8
B 5 172 50294 359.87 721 699 137.8
C 14 254 87380 512.81 722 727 169.0
C 3 233 19517 111.2 722 727 169.0
C 13 61 4875 24.55 722 727 169.0
D 2 37 11386980 101276.32 442 427 112.4
D 1 52 457114 4061.95 442 427 112.4
D 10 255 123948 1098.64 442 427 112.4

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