ASTROSAT CZTI

Data Quality Report

Orbit 20573

Creation date: 2024-06-27T18:16:59.904961
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/AS1A05_088T03_9000003042_20573cztM0_level2.evt modeM0/AS1A05_088T03_9000003042_20573cztM0_level2_quad_clean.evt
Size (bytes)548,758,08091,627,200
Size523.3 MB 87.4 MB
Events in quadrant A3,400,429575,089
Events in quadrant B3,517,563574,811
Events in quadrant C3,519,413562,729
Events in quadrant D5,680,274547,766

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150972
B0152211
C0152841
D0219081

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7394610.824993%
B73951041.406356%
C7395971.311697%
D73956108.248817%

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 7674 7396 0 0 0.00% 0.00%
B 7675 7397 0 0 0.00% 0.00%
C 7675 7397 0 0 0.00% 0.00%
D 7675 7396 434 434 5.65% 5.87%

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 3 137 7521 37.31 883 864 178.4
A 0 226 7511 37.25 883 864 178.4
A 12 194 6321 30.58 883 864 178.4
B 12 111 21396 120.66 880 859 170.2
B 11 111 18547 103.92 880 859 170.2
B 14 111 16614 92.56 880 859 170.2
C 14 238 131969 649.76 855 862 201.8
C 10 91 45314 220.3 855 862 201.8
C 13 61 5896 24.95 855 862 201.8
D 1 52 1655617 8231.26 832 808 201.0
D 5 222 754859 3750.76 832 808 201.0
D 1 20 39225 191.09 832 808 201.0

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