ASTROSAT CZTI

Data Quality Report

Orbit 46477

Creation date: 2024-06-27T23:23:37.769958
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_203T01_9000006214_46477cztM0_level2.fits modeM0/AS1T05_203T01_9000006214_46477cztM0_level2_quad_clean.evt
Size (bytes)360,181,44077,604,480
Size343.5 MB 74.0 MB
Events in quadrant A4,459,420515,552
Events in quadrant B2,264,687539,723
Events in quadrant C2,222,804513,376
Events in quadrant D4,019,335450,279

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158821
B099901
C0100621
D0151721

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A47121372.907470%
B4712711.506791%
C4712170.360781%
D47123076.515280%

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 4712 4712 29 29 0.62% 0.62%
B 4712 4712 31 31 0.66% 0.66%
C 4712 4712 0 0 0.00% 0.00%
D 4712 4712 255 255 5.41% 5.41%

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 2208801 20281.75 523 512 108.9
A 15 235 118096 1079.94 523 512 108.9
A 2 79 78247 713.95 523 512 108.9
B 5 172 80152 768.77 524 508 103.6
B 5 32 51230 489.6 524 508 103.6
B 10 128 31786 301.91 524 508 103.6
C 9 54 197578 1622.38 513 516 121.5
C 3 233 21780 175.06 513 516 121.5
C 12 249 6021 45.32 513 516 121.5
D 1 52 1355383 10703.74 501 485 126.6
D 2 249 266887 2104.58 501 485 126.6
D 13 249 197389 1555.55 501 485 126.6

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