ASTROSAT CZTI

Data Quality Report

Orbit 43645

Creation date: 2024-06-27T22:54:01.322260
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/AS1A12_068T05_9000005894_43645cztM0_level2.fits modeM0/AS1A12_068T05_9000005894_43645cztM0_level2_quad_clean.evt
Size (bytes)860,673,60092,825,280
Size820.8 MB 88.5 MB
Events in quadrant A4,551,214700,482
Events in quadrant B4,125,123721,679
Events in quadrant C15,624,766357,789
Events in quadrant D7,068,460585,757

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175011
B0164151
C0507257
D0254071

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63223124.935147%
B63232554.032896%
C6322564689.307181%
D6322103816.418855%

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 7342 6322 210 210 2.86% 3.32%
B 7343 6323 132 132 1.80% 2.09%
C 7341 6321 5690 5690 77.51% 90.02%
D 7342 6322 873 873 11.89% 13.81%

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 13 248 810916 5651.81 698 683 143.4
A 10 83 769971 5366.19 698 683 143.4
A 15 223 146018 1013.79 698 683 143.4
B 12 32 939001 6914.19 698 678 135.7
B 5 235 224337 1648.07 698 678 135.7
B 4 206 79308 579.4 698 678 135.7
C 15 142 9986847 116796.95 363 364 85.5
C 15 157 1549054 18112.71 363 364 85.5
C 3 233 1038177 12137.75 363 364 85.5
D 13 249 1537627 8890.1 651 626 172.9
D 4 221 446075 2576.5 651 626 172.9
D 14 210 401710 2319.89 651 626 172.9

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