ASTROSAT CZTI

Data Quality Report

Orbit 05356

Creation date: 2024-06-27T14:54:15.873537
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/AS1G05_106T01_9000000678_05356cztM0_level2.evt modeM0/AS1G05_106T01_9000000678_05356cztM0_level2_quad_clean.evt
Size (bytes)483,356,16063,308,160
Size461.0 MB 60.4 MB
Events in quadrant A3,370,759379,242
Events in quadrant B3,444,653384,117
Events in quadrant C3,126,668381,840
Events in quadrant D4,271,520334,729

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141143
B0142722
C0132032
D0170842

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62601792.859425%
B6260651.038339%
C6260190.303514%
D62604717.523962%

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 7555 6260 144 144 1.91% 2.30%
B 7555 6261 22 22 0.29% 0.35%
C 7555 6261 0 0 0.00% 0.00%
D 7555 6261 484 484 6.41% 7.73%

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 15 174 403803 2652.81 747 732 151.9
A 0 50 90668 591.91 747 732 151.9
A 12 194 7573 45.02 747 732 151.9
B 4 80 135074 918.66 769 753 146.2
B 8 3 124443 845.96 769 753 146.2
B 4 81 69386 469.4 769 753 146.2
C 1 16 234338 1369.9 738 744 170.5
C 14 67 10503 57.23 738 744 170.5
C 13 61 6134 31.61 738 744 170.5
D 2 63 1394395 8209.14 691 669 169.8
D 12 233 98488 576.16 691 669 169.8
D 12 17 46230 268.36 691 669 169.8

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