ASTROSAT CZTI

Data Quality Report

Orbit 06569

Creation date: 2024-06-27T15:08:54.463820
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_246T04_9000000882_06569cztM0_level2.evt modeM0/AS1G05_246T04_9000000882_06569cztM0_level2_quad_clean.evt
Size (bytes)439,554,24089,953,920
Size419.2 MB 85.8 MB
Events in quadrant A2,849,536575,867
Events in quadrant B3,281,874582,166
Events in quadrant C2,845,416582,762
Events in quadrant D3,914,202550,944

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127492
B0139791
C0128221
D0159061

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6201190.306402%
B62011151.854540%
C620180.129011%
D62011161.870666%

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 7441 6202 0 0 0.00% 0.00%
B 7441 6202 59 59 0.79% 0.95%
C 7441 6202 0 0 0.00% 0.00%
D 7441 6202 86 86 1.16% 1.39%

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 15 9003 54.82 737 720 151.1
A 0 226 7046 41.87 737 720 151.1
A 12 194 6606 38.96 737 720 151.1
B 0 219 166315 1179.83 742 727 140.3
B 4 48 95658 676.39 742 727 140.3
B 4 172 41099 287.65 742 727 140.3
C 13 61 5851 30.41 726 729 168.4
C 10 22 4573 22.82 726 729 168.4
C 7 235 3760 18.0 726 729 168.4
D 14 34 567429 3260.83 713 692 173.8
D 12 221 257593 1478.13 713 692 173.8
D 2 33 174772 1001.6 713 692 173.8

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