ASTROSAT CZTI

Data Quality Report

Orbit 43140

Creation date: 2024-06-27T22:48:33.597859
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/AS1A09_107T01_9000005854_43140cztM0_level2.fits modeM0/AS1A09_107T01_9000005854_43140cztM0_level2_quad_clean.evt
Size (bytes)322,390,08092,980,800
Size307.5 MB 88.7 MB
Events in quadrant A3,681,265618,640
Events in quadrant B2,658,875626,379
Events in quadrant C2,511,750634,951
Events in quadrant D2,686,264579,595

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144322
B0112483
C0104662
D0113882

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5081450.885652%
B50801833.602362%
C508080.157480%
D5080470.925197%

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 7114 5082 25 25 0.35% 0.49%
B 7112 5080 136 136 1.91% 2.68%
C 7113 5081 3 3 0.04% 0.06%
D 7113 5081 39 39 0.55% 0.77%

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 558046 4738.33 577 566 117.7
A 15 222 410622 3485.29 577 566 117.7
A 12 189 323324 2743.3 577 566 117.7
B 0 229 422091 4028.35 558 546 104.6
B 5 255 23209 216.57 558 546 104.6
B 0 186 22103 206.0 558 546 104.6
C 15 214 231256 1759.5 575 578 131.1
C 14 254 29348 219.44 575 578 131.1
C 0 239 4908 33.03 575 578 131.1
D 12 16 188377 1360.18 574 559 138.1
D 1 52 173049 1249.18 574 559 138.1
D 12 6 28960 205.68 574 559 138.1

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