ASTROSAT CZTI

Data Quality Report

Orbit 23570

Creation date: 2024-06-27T18:56:16.735980
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/AS1A07_011T01_9000003482_23570cztM0_level2.evt modeM0/AS1A07_011T01_9000003482_23570cztM0_level2_quad_clean.evt
Size (bytes)485,262,72082,615,680
Size462.8 MB 78.8 MB
Events in quadrant A3,260,367511,090
Events in quadrant B3,590,695515,303
Events in quadrant C3,315,529494,912
Events in quadrant D4,050,054488,968

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014518180
B015363224
C014620174
D017239477

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7047781.106854%
B70411271.803721%
C70531091.545442%
D70431562.214965%

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 7543 7069 0 0 0.00% 0.00%
B 7543 7058 11 11 0.15% 0.16%
C 7543 7073 0 0 0.00% 0.00%
D 7543 7061 89 89 1.18% 1.26%

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 13 254 12353 67.15 843 826 171.7
A 3 137 7650 39.75 843 826 171.7
A 0 226 7417 38.39 843 826 171.7
B 0 189 221929 1364.46 834 810 162.1
B 0 229 24104 143.74 834 810 162.1
B 0 230 21214 125.91 834 810 162.1
C 14 238 126674 672.38 800 805 187.2
C 10 9 41364 216.66 800 805 187.2
C 7 247 19905 102.03 800 805 187.2
D 7 38 245226 1231.57 813 789 198.5
D 9 85 174583 875.64 813 789 198.5
D 12 233 136810 685.33 813 789 198.5

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