ASTROSAT CZTI

Data Quality Report

Orbit 11564

Creation date: 2024-06-27T16:14:57.524711
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_009T01_9000001696_11564cztM0_level2.evt modeM0/AS1G08_009T01_9000001696_11564cztM0_level2_quad_clean.evt
Size (bytes)613,584,00093,600,000
Size585.2 MB 89.3 MB
Events in quadrant A6,221,342586,616
Events in quadrant B4,679,806614,126
Events in quadrant C3,011,783617,864
Events in quadrant D4,252,485585,091

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0229182
B0180701
C0128601
D0165921

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A616476912.475665%
B61644166.748864%
C6164250.405581%
D61642894.688514%

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 7470 6166 543 543 7.27% 8.81%
B 7470 6166 261 261 3.49% 4.23%
C 7470 6166 0 0 0.00% 0.00%
D 7470 6166 180 180 2.41% 2.92%

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 2813229 17883.46 779 765 157.3
A 13 210 117181 740.25 779 765 157.3
A 1 162 103302 652.0 779 765 157.3
B 4 239 1228166 8193.23 792 775 149.8
B 15 204 175809 1168.41 792 775 149.8
B 11 51 85294 564.19 792 775 149.8
C 13 61 5610 27.05 772 777 178.7
C 14 67 2411 9.15 772 777 178.7
C 3 202 1928 6.44 772 777 178.7
D 13 137 471641 2617.46 765 746 179.9
D 2 120 469076 2603.2 765 746 179.9
D 1 52 229654 1272.38 765 746 179.9

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