ASTROSAT CZTI

Data Quality Report

Orbit 11362

Creation date: 2024-06-27T16:11:50.067205
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/AS1G08_062T01_9000001660_11362cztM0_level2.evt modeM0/AS1G08_062T01_9000001660_11362cztM0_level2_quad_clean.evt
Size (bytes)583,758,72085,504,320
Size556.7 MB 81.5 MB
Events in quadrant A3,475,068566,805
Events in quadrant B5,781,220507,333
Events in quadrant C2,876,550569,842
Events in quadrant D5,138,064523,904

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141232
B0211671
C0123861
D0192971

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6028621.028534%
B6028101216.788321%
C6028270.447910%
D602876412.674187%

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 7348 6029 7 7 0.10% 0.12%
B 7348 6028 678 678 9.23% 11.25%
C 7348 6029 0 0 0.00% 0.00%
D 7348 6029 515 515 7.01% 8.54%

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 15 174 407197 2695.93 742 727 150.8
A 13 251 154009 1016.65 742 727 150.8
A 1 162 12756 79.78 742 727 150.8
B 3 64 2109314 16189.9 700 685 130.2
B 4 239 811021 6221.7 700 685 130.2
B 15 204 49556 375.23 700 685 130.2
C 13 61 5415 27.41 737 742 170.5
C 8 222 3702 17.36 737 742 170.5
C 3 202 1810 6.27 737 742 170.5
D 1 52 1330150 8091.39 689 670 164.3
D 10 253 313333 1902.91 689 670 164.3
D 2 14 250835 1522.54 689 670 164.3

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