ASTROSAT CZTI

Data Quality Report

Orbit 46132

Creation date: 2024-06-27T23:19:30.282399
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/AS1A13_098T02_9000006174_46132cztM0_level2.fits modeM0/AS1A13_098T02_9000006174_46132cztM0_level2_quad_clean.evt
Size (bytes)708,526,080125,651,520
Size675.7 MB 119.8 MB
Events in quadrant A8,188,324840,140
Events in quadrant B4,076,357891,885
Events in quadrant C3,918,179860,623
Events in quadrant D9,416,673647,874

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0295760
B0174611
C0174170
D0335620

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81122953.636588%
B81121141.405325%
C8112400.493097%
D8112163120.106016%

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 8112 8112 61 61 0.75% 0.75%
B 8112 8112 9 9 0.11% 0.11%
C 8112 8112 23 23 0.28% 0.28%
D 8112 8112 1273 1273 15.69% 15.69%

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 10 83 3282476 16843.78 927 906 194.8
A 9 191 1236528 6342.25 927 906 194.8
A 10 255 30735 153.11 927 906 194.8
B 3 112 124555 653.23 939 909 189.3
B 15 201 82256 429.76 939 909 189.3
B 0 190 61083 317.9 939 909 189.3
C 12 2 233315 1064.07 923 926 218.4
C 14 254 54721 246.32 923 926 218.4
C 3 233 25273 111.48 923 926 218.4
D 2 249 1800861 8550.43 831 803 210.5
D 1 52 1494688 7096.08 831 803 210.5
D 5 235 860316 4082.76 831 803 210.5

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