ASTROSAT CZTI

Data Quality Report

Orbit 43910

Creation date: 2024-06-27T22:57:05.547714
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_009T02_9000005914_43910cztM0_level2.fits modeM0/AS1A13_009T02_9000005914_43910cztM0_level2_quad_clean.evt
Size (bytes)434,393,28096,425,280
Size414.3 MB 92.0 MB
Events in quadrant A5,145,172625,097
Events in quadrant B3,847,819654,259
Events in quadrant C2,782,020647,577
Events in quadrant D3,852,437586,286

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0197741
B0152602
C0122941
D0154361

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58195238.987799%
B58193886.667812%
C5819621.065475%
D58191482.543392%

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 6904 5820 278 278 4.03% 4.78%
B 6904 5820 285 285 4.13% 4.90%
C 6904 5820 7 7 0.10% 0.12%
D 6904 5820 102 102 1.48% 1.75%

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 15 223 1545302 11177.73 663 649 138.2
A 10 83 909551 6577.18 663 649 138.2
A 7 191 76720 550.48 663 649 138.2
B 5 172 1029002 7841.22 660 644 131.1
B 5 235 69083 521.85 660 644 131.1
B 0 200 56475 425.71 660 644 131.1
C 14 254 102810 659.86 660 664 154.8
C 3 233 36274 230.04 660 664 154.8
C 15 158 21764 136.31 660 664 154.8
D 1 52 211369 1231.86 666 643 171.1
D 12 233 163088 949.62 666 643 171.1
D 5 235 158506 922.84 666 643 171.1

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