ASTROSAT CZTI

Data Quality Report

Orbit 42790

Creation date: 2024-06-27T22:44:15.374746
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_013T01_9000005822_42790cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42790cztM0_level2_quad_clean.evt
Size (bytes)396,000,00088,597,440
Size377.7 MB 84.5 MB
Events in quadrant A3,259,060606,788
Events in quadrant B2,896,909607,028
Events in quadrant C2,488,726598,317
Events in quadrant D5,598,181496,271

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129782
B0122872
C0108082
D0203522

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5348420.785340%
B5347460.860295%
C534740.074808%
D534773413.727324%

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 7110 5349 34 34 0.48% 0.64%
B 7109 5348 26 26 0.37% 0.49%
C 7109 5348 0 0 0.00% 0.00%
D 7108 5347 747 747 10.51% 13.97%

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 10 83 611225 5053.32 592 581 120.8
A 10 255 284458 2349.19 592 581 120.8
A 2 79 34875 283.8 592 581 120.8
B 0 229 326245 2852.54 585 570 114.2
B 10 247 233742 2042.32 585 570 114.2
B 0 245 19569 166.41 585 570 114.2
C 15 214 231100 1710.79 573 576 134.7
C 3 233 13815 98.25 573 576 134.7
C 14 254 7163 48.88 573 576 134.7
D 2 249 1791710 13182.83 548 532 135.9
D 1 52 1279777 9415.07 548 532 135.9
D 12 233 93399 683.49 548 532 135.9

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