ASTROSAT CZTI

Data Quality Report

Orbit 08799

Creation date: 2024-06-27T15:37:22.812197
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/AS1G07_010T03_9000001224_08799cztM0_level2.evt modeM0/AS1G07_010T03_9000001224_08799cztM0_level2_quad_clean.evt
Size (bytes)265,970,88060,292,800
Size253.6 MB 57.5 MB
Events in quadrant A1,945,940414,204
Events in quadrant B1,450,323419,875
Events in quadrant C1,412,143415,728
Events in quadrant D3,037,363358,131

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A077797
B062200
C061400
D0111135

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3051812.654867%
B305310.032755%
C305300.000000%
D305146415.208128%

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 3053 3053 70 70 2.29% 2.29%
B 3053 3053 0 0 0.00% 0.00%
C 3053 3053 0 0 0.00% 0.00%
D 3052 3052 455 455 14.91% 14.91%

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 15 223 234808 3122.74 366 359 75.1
A 8 5 184134 2447.79 366 359 75.1
A 15 239 89198 1183.29 366 359 75.1
B 5 174 11497 158.76 366 358 70.2
B 0 168 9494 130.21 366 358 70.2
B 12 111 7207 97.62 366 358 70.2
C 13 61 2732 27.98 361 365 84.6
C 8 222 1921 18.39 361 365 84.6
C 12 4 1241 10.35 361 365 84.6
D 2 16 1359787 16713.45 326 319 81.3
D 2 152 155073 1902.56 326 319 81.3
D 4 95 123694 1516.79 326 319 81.3

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