ASTROSAT CZTI

Data Quality Report

Orbit 38945

Creation date: 2024-06-27T21:58:29.938641
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_064T01_9000005416_38945cztM0_level2.fits modeM0/AS1T05_064T01_9000005416_38945cztM0_level2_quad_clean.evt
Size (bytes)365,368,32094,383,360
Size348.4 MB 90.0 MB
Events in quadrant A3,115,938628,058
Events in quadrant B2,806,431638,459
Events in quadrant C2,677,326627,055
Events in quadrant D4,477,472562,369

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127343
B0123322
C0115832
D0171992

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5751570.991132%
B5751921.599722%
C575130.052165%
D57512414.190576%

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 7063 5752 41 41 0.58% 0.71%
B 7063 5752 79 79 1.12% 1.37%
C 7063 5752 0 0 0.00% 0.00%
D 7063 5752 248 248 3.51% 4.31%

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 448804 3475.99 632 618 128.9
A 13 248 199626 1543.44 632 618 128.9
A 9 143 10758 78.64 632 618 128.9
B 5 172 290131 2380.6 627 609 121.6
B 0 230 20098 160.25 627 609 121.6
B 12 111 15250 120.39 627 609 121.6
C 15 214 240174 1637.88 622 626 146.3
C 1 23 6943 43.19 622 626 146.3
C 13 61 4358 25.52 622 626 146.3
D 12 227 860252 5730.73 610 592 150.0
D 12 235 257846 1714.92 610 592 150.0
D 2 250 203726 1354.14 610 592 150.0

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