ASTROSAT CZTI

Data Quality Report

Orbit 28890

Creation date: 2024-06-27T19:57:38.448522
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/AS1A10_064T01_9000004144_28890cztM0_level2.evt modeM0/AS1A10_064T01_9000004144_28890cztM0_level2_quad_clean.evt
Size (bytes)599,624,64088,698,240
Size571.8 MB 84.6 MB
Events in quadrant A3,406,383580,305
Events in quadrant B3,170,106604,290
Events in quadrant C4,098,265558,755
Events in quadrant D7,061,105505,000

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142152
B0133122
C0164432
D0253852

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6272420.669643%
B6272320.510204%
C62721141.817602%
D627276212.149235%

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 7502 6273 17 17 0.23% 0.27%
B 7502 6272 0 0 0.00% 0.00%
C 7502 6272 0 0 0.00% 0.00%
D 7502 6272 724 724 9.65% 11.54%

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 6 16 304433 1911.27 800 786 158.9
A 13 6 18150 109.3 800 786 158.9
A 13 254 10488 61.07 800 786 158.9
B 12 111 17811 112.35 804 785 151.5
B 11 111 16586 104.27 804 785 151.5
B 14 111 14928 93.33 804 785 151.5
C 3 233 903142 5005.62 776 783 180.3
C 14 238 134475 741.62 776 783 180.3
C 2 114 14792 77.71 776 783 180.3
D 8 195 2654275 14835.81 750 730 178.9
D 1 52 1524347 8518.45 750 730 178.9
D 2 250 30828 168.28 750 730 178.9

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