ASTROSAT CZTI

Data Quality Report

Orbit 15039

Creation date: 2024-06-27T17:02:55.274959
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/AS1T02_060T01_9000002216_15039cztM0_level2.evt modeM0/AS1T02_060T01_9000002216_15039cztM0_level2_quad_clean.evt
Size (bytes)448,139,52081,152,640
Size427.4 MB 77.4 MB
Events in quadrant A3,386,597511,936
Events in quadrant B3,221,826529,964
Events in quadrant C3,480,697504,468
Events in quadrant D3,063,815480,326

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136913
B0131322
C0139552
D0131082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6169410.664613%
B6169580.940185%
C6169200.324202%
D6169290.470092%

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 7515 6171 0 0 0.00% 0.00%
B 7515 6171 4 4 0.05% 0.06%
C 7515 6171 0 0 0.00% 0.00%
D 7515 6171 23 23 0.31% 0.37%

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 1 162 99415 605.71 814 801 162.8
A 1 178 47774 288.52 814 801 162.8
A 1 161 41963 252.83 814 801 162.8
B 3 64 37548 237.65 815 796 154.6
B 12 111 18078 111.75 815 796 154.6
B 11 111 15763 96.78 815 796 154.6
C 3 233 428829 2375.72 782 790 180.2
C 13 61 5649 26.97 782 790 180.2
C 3 232 3187 13.3 782 790 180.2
D 13 104 97007 517.91 774 753 185.8
D 13 249 31934 167.78 774 753 185.8
D 2 234 17268 88.86 774 753 185.8

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