ASTROSAT CZTI

Data Quality Report

Orbit 46233

Creation date: 2024-06-27T23:20:37.858860
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_065T07_9000006188_46233cztM0_level2.fits modeM0/AS1A13_065T07_9000006188_46233cztM0_level2_quad_clean.evt
Size (bytes)633,070,080135,838,080
Size603.7 MB 129.5 MB
Events in quadrant A7,398,198900,453
Events in quadrant B5,373,479926,325
Events in quadrant C4,240,299896,414
Events in quadrant D5,763,729798,546

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0271892
B0217302
C0188982
D0231462

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85032472.904857%
B85042973.492474%
C8504931.093603%
D85043774.433208%

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 8548 8504 0 0 0.00% 0.00%
B 8549 8505 10 10 0.12% 0.12%
C 8549 8506 55 55 0.64% 0.65%
D 8549 8506 237 237 2.77% 2.79%

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 3400942 16353.92 991 968 207.9
A 0 247 138680 662.4 991 968 207.9
A 0 226 15196 68.44 991 968 207.9
B 3 112 1411489 7100.23 991 959 198.7
B 12 111 26385 127.99 991 959 198.7
B 11 111 24344 117.71 991 959 198.7
C 12 2 306686 1307.53 979 983 233.8
C 1 3 50323 211.03 979 983 233.8
C 14 254 36786 153.13 979 983 233.8
D 1 52 1533171 6251.51 963 933 245.1
D 13 171 184595 749.34 963 933 245.1
D 4 223 108657 439.51 963 933 245.1

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