ASTROSAT CZTI

Data Quality Report

Orbit 38068

Creation date: 2024-06-27T21:48:01.800389
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/AS1A11_047T09_9000005362_38068cztM0_level2.fits modeM0/AS1A11_047T09_9000005362_38068cztM0_level2_quad_clean.evt
Size (bytes)333,797,76095,800,320
Size318.3 MB 91.4 MB
Events in quadrant A2,907,201657,022
Events in quadrant B3,006,004647,379
Events in quadrant C2,786,783636,091
Events in quadrant D3,243,540589,689

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119743
B0123622
C0115532
D0131772

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5295300.566572%
B52951683.172805%
C5295220.415486%
D5295761.435316%

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 7088 5296 11 11 0.16% 0.21%
B 7088 5296 95 95 1.34% 1.79%
C 7088 5296 7 7 0.10% 0.13%
D 7088 5296 64 64 0.90% 1.21%

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 10 83 371786 2887.89 633 621 128.5
A 9 143 41279 316.34 633 621 128.5
A 12 189 15986 119.55 633 621 128.5
B 5 172 385604 3177.45 624 607 121.2
B 4 171 63014 515.06 624 607 121.2
B 0 229 40466 328.96 624 607 121.2
C 15 214 218916 1508.13 620 625 144.7
C 3 233 69327 474.65 620 625 144.7
C 0 10 41521 282.54 620 625 144.7
D 12 233 193868 1276.43 617 602 151.4
D 1 52 161775 1064.47 617 602 151.4
D 13 200 120934 794.74 617 602 151.4

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