ASTROSAT CZTI

Data Quality Report

Orbit 10828

Creation date: 2024-06-27T16:04:16.034316
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/AS1A03_086T01_9000001568_10828cztM0_level2.evt modeM0/AS1A03_086T01_9000001568_10828cztM0_level2_quad_clean.evt
Size (bytes)568,304,64078,249,600
Size542.0 MB 74.6 MB
Events in quadrant A4,568,683485,156
Events in quadrant B4,936,009473,761
Events in quadrant C3,199,761491,208
Events in quadrant D4,067,756467,001

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179693
B0190312
C0135102
D0167252

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64812934.520907%
B64815288.146891%
C6481681.049221%
D6481911.404104%

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 7601 6482 139 139 1.83% 2.14%
B 7601 6482 229 229 3.01% 3.53%
C 7601 6482 0 0 0.00% 0.00%
D 7601 6482 17 17 0.22% 0.26%

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 8 5 1235645 7331.02 827 812 168.4
A 13 251 129926 766.53 827 812 168.4
A 11 29 14744 82.71 827 812 168.4
B 4 239 1616966 10341.3 816 800 156.3
B 4 173 27103 168.3 816 800 156.3
B 0 214 23326 144.14 816 800 156.3
C 13 61 6188 28.22 819 828 189.9
C 5 207 3517 14.16 819 828 189.9
C 8 222 3127 12.11 819 828 189.9
D 8 195 653715 3316.21 816 796 196.9
D 1 52 79017 397.29 816 796 196.9
D 12 227 60902 305.28 816 796 196.9

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