ASTROSAT CZTI

Data Quality Report

Orbit 08569

Creation date: 2024-06-27T15:34:23.264627
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_060T01_9000001200_08569cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08569cztM0_level2_quad_clean.evt
Size (bytes)412,914,24085,089,600
Size393.8 MB 81.1 MB
Events in quadrant A2,955,549537,880
Events in quadrant B3,290,006548,532
Events in quadrant C2,861,324537,467
Events in quadrant D2,969,897513,458

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130503
B0138762
C0128922
D0132242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6303280.444233%
B63031031.634142%
C6303170.269713%
D630390.142789%

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 7568 6304 4 4 0.05% 0.06%
B 7568 6304 56 56 0.74% 0.89%
C 7568 6304 0 0 0.00% 0.00%
D 7568 6304 3 3 0.04% 0.05%

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 5 112 32472 208.37 750 735 152.3
A 15 223 17012 106.87 750 735 152.3
A 14 111 12193 75.23 750 735 152.3
B 10 16 304543 2122.6 756 738 143.1
B 12 111 16515 110.23 756 738 143.1
B 0 214 15929 106.14 756 738 143.1
C 13 61 5439 27.7 733 734 169.9
C 8 222 2285 9.13 733 734 169.9
C 14 64 1805 6.31 733 734 169.9
D 1 52 136000 738.23 717 698 183.3
D 8 195 36775 196.84 717 698 183.3
D 12 233 30715 163.78 717 698 183.3

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