ASTROSAT CZTI

Data Quality Report

Orbit 12963

Creation date: 2024-06-27T16:34:26.457447
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_033T01_9000001906_12963cztM0_level2.evt modeM0/AS1G08_033T01_9000001906_12963cztM0_level2_quad_clean.evt
Size (bytes)597,133,440101,018,880
Size569.5 MB 96.3 MB
Events in quadrant A4,219,754652,129
Events in quadrant B5,171,612627,125
Events in quadrant C3,339,908656,746
Events in quadrant D4,853,736610,640

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174733
B0201992
C0148922
D0192902

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73661251.696986%
B736674510.114037%
C7366280.380125%
D73663634.928048%

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 8972 7369 43 43 0.48% 0.58%
B 8972 7369 409 409 4.56% 5.55%
C 8972 7369 0 0 0.00% 0.00%
D 8972 7369 342 342 3.81% 4.64%

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 12 189 186376 1048.05 873 855 177.0
A 15 223 181926 1022.91 873 855 177.0
A 1 162 166983 938.49 873 855 177.0
B 4 239 1419954 8926.94 834 811 159.0
B 3 64 376821 2365.24 834 811 159.0
B 0 219 32443 198.98 834 811 159.0
C 14 234 6563 28.74 854 857 198.5
C 13 61 6326 27.55 854 857 198.5
C 8 222 3440 13.01 854 857 198.5
D 1 52 1128807 5440.45 842 814 207.3
D 8 195 281685 1354.68 842 814 207.3
D 12 110 84450 403.39 842 814 207.3

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