ASTROSAT CZTI

Data Quality Report

Orbit 19698

Creation date: 2024-06-27T18:05:43.512363
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/AS1A05_013T01_9000002944_19698cztM0_level2.evt modeM0/AS1A05_013T01_9000002944_19698cztM0_level2_quad_clean.evt
Size (bytes)442,823,04096,851,520
Size422.3 MB 92.4 MB
Events in quadrant A3,098,651633,944
Events in quadrant B3,343,259656,297
Events in quadrant C3,264,173613,153
Events in quadrant D3,277,374590,789

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131872
B0138822
C0134822
D0138202

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6289190.302115%
B6289610.969948%
C6289480.763237%
D6289470.747337%

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 7589 6290 3 3 0.04% 0.05%
B 7589 6290 19 19 0.25% 0.30%
C 7589 6290 0 0 0.00% 0.00%
D 7589 6290 32 32 0.42% 0.51%

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 5 16 26301 159.71 798 783 159.8
A 0 226 7064 39.31 798 783 159.8
A 13 254 6658 36.77 798 783 159.8
B 0 189 58975 387.74 806 790 150.1
B 0 230 48714 319.36 806 790 150.1
B 3 64 23395 150.64 806 790 150.1
C 3 233 140121 781.42 767 775 178.3
C 14 238 122663 683.52 767 775 178.3
C 9 221 5720 27.73 767 775 178.3
D 12 218 105469 560.35 766 743 186.9
D 10 230 93024 493.77 766 743 186.9
D 2 16 59782 315.9 766 743 186.9

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