ASTROSAT CZTI

Data Quality Report

Orbit 09329

Creation date: 2024-06-27T15:44:34.749988
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/AS1G07_009T01_9000001318_09329cztM0_level2.evt modeM0/AS1G07_009T01_9000001318_09329cztM0_level2_quad_clean.evt
Size (bytes)904,841,280155,220,480
Size862.9 MB 148.0 MB
Events in quadrant A7,243,983946,445
Events in quadrant B6,255,036971,347
Events in quadrant C6,009,393947,799
Events in quadrant D7,001,639924,692

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161
B0160
C0162
D0161

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0321172810
B0295722416
C0294172433
D0329023046

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A029422
B029422
C029320
D029430

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A131243412.598293%
B131932982.258774%
C131862071.569847%
D131433772.868447%

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 15950 13751 10 10 0.06% 0.07%
B 15946 13823 2 2 0.01% 0.01%
C 15945 13805 0 0 0.00% 0.00%
D 15943 13777 124 124 0.78% 0.90%

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 8 5 1084643 3387.26 1563 1526 319.8
A 1 162 71359 218.39 1563 1526 319.8
A 13 248 27281 80.54 1563 1526 319.8
B 0 219 41992 132.54 1578 1536 305.2
B 12 111 35468 111.17 1578 1536 305.2
B 10 245 31395 97.83 1578 1536 305.2
C 13 61 11606 28.14 1532 1538 357.7
C 10 22 10331 24.58 1532 1538 357.7
C 8 128 9500 22.25 1532 1538 357.7
D 1 52 855378 2201.47 1509 1470 387.9
D 12 227 179414 458.76 1509 1470 387.9
D 12 233 97982 248.82 1509 1470 387.9

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