ASTROSAT CZTI

Data Quality Report

Orbit 08607

Creation date: 2024-06-27T15:34:53.476561
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/AS1A03_102T01_9000001202_08607cztM0_level2.evt modeM0/AS1A03_102T01_9000001202_08607cztM0_level2_quad_clean.evt
Size (bytes)443,759,04099,299,520
Size423.2 MB 94.7 MB
Events in quadrant A2,761,352652,198
Events in quadrant B3,180,309664,901
Events in quadrant C2,680,392652,431
Events in quadrant D4,401,242610,323

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125951
B0136231
C0124181
D0175701

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6122400.653381%
B6122801.306762%
C6122340.555374%
D61223976.484809%

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 7127 6122 6 6 0.08% 0.10%
B 7127 6122 27 27 0.38% 0.44%
C 7127 6122 0 0 0.00% 0.00%
D 7127 6122 427 427 5.99% 6.97%

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 8 5 41567 287.77 693 676 142.1
A 5 16 32933 227.01 693 676 142.1
A 13 248 13671 91.45 693 676 142.1
B 0 219 115922 860.22 701 685 134.0
B 10 16 92363 684.35 701 685 134.0
B 0 214 68887 509.11 701 685 134.0
C 14 64 6141 34.53 683 685 158.0
C 13 61 5065 27.72 683 685 158.0
C 8 208 3753 19.42 683 685 158.0
D 9 102 1385479 8450.67 671 651 163.9
D 12 233 258812 1575.38 671 651 163.9
D 10 253 90157 546.19 671 651 163.9

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