ASTROSAT CZTI

Data Quality Report

Orbit 47011

Creation date: 2024-06-27T23:30:41.756159
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/AS1C09_006T01_9000006294_47011cztM0_level2.fits modeM0/AS1C09_006T01_9000006294_47011cztM0_level2_quad_clean.evt
Size (bytes)722,586,24093,732,480
Size689.1 MB 89.4 MB
Events in quadrant A6,286,205718,481
Events in quadrant B12,055,583349,696
Events in quadrant C2,977,154708,156
Events in quadrant D4,944,651625,144

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234113
B0401411
C0130661
D0189091

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62502413.856000%
B6250389862.368000%
C6251751.199808%
D62514366.974884%

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 7410 6251 6 6 0.08% 0.10%
B 7410 6251 3291 3291 44.41% 52.65%
C 7411 6252 11 11 0.15% 0.18%
D 7411 6252 312 312 4.21% 4.99%

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 3232363 21114.34 741 727 153.1
A 9 191 178447 1161.16 741 727 153.1
A 0 243 10785 65.72 741 727 153.1
B 3 112 9644782 84814.27 576 557 113.7
B 5 255 65227 568.73 576 557 113.7
B 0 200 33212 287.18 576 557 113.7
C 14 254 63054 363.8 727 731 171.3
C 3 233 49057 282.09 727 731 171.3
C 12 250 27206 154.54 727 731 171.3
D 1 52 1320615 7366.9 716 695 179.2
D 13 249 640465 3570.76 716 695 179.2
D 13 29 81357 450.2 716 695 179.2

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