ASTROSAT CZTI

Data Quality Report

Orbit 40081

Creation date: 2024-06-27T22:12:06.965098
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/AS1T05_086T01_9000005518_40081cztM0_level2.fits modeM0/AS1T05_086T01_9000005518_40081cztM0_level2_quad_clean.evt
Size (bytes)445,006,08093,052,800
Size424.4 MB 88.7 MB
Events in quadrant A3,019,284666,563
Events in quadrant B2,528,089685,958
Events in quadrant C5,693,727566,390
Events in quadrant D4,816,335525,036

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123422
B0109581
C0204951
D0181111

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5341460.861262%
B534160.112339%
C534181415.240592%
D534168712.862760%

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 7133 5342 29 29 0.41% 0.54%
B 7133 5342 0 0 0.00% 0.00%
C 7133 5342 768 768 10.77% 14.38%
D 7133 5342 597 597 8.37% 11.18%

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 460218 3708.22 595 586 123.9
A 13 248 166907 1341.84 595 586 123.9
A 2 79 38064 302.36 595 586 123.9
B 0 189 156512 1337.53 599 584 116.6
B 0 230 23113 193.25 599 584 116.6
B 12 111 13844 113.74 599 584 116.6
C 9 187 3093834 23364.09 558 563 132.4
C 15 214 211901 1596.28 558 563 132.4
C 0 10 160965 1211.55 558 563 132.4
D 1 47 1243679 9161.09 549 535 135.7
D 12 227 727578 5357.79 549 535 135.7
D 2 250 283275 2083.59 549 535 135.7

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