ASTROSAT CZTI

Data Quality Report

Orbit 32013

Creation date: 2024-06-27T20:35:14.765180
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/AS1A10_109T01_9000004678_32013cztM0_level2.evt modeM0/AS1A10_109T01_9000004678_32013cztM0_level2_quad_clean.evt
Size (bytes)1,671,624,000266,279,040
Size1.6 GB 253.9 MB
Events in quadrant A8,763,5411,778,588
Events in quadrant B15,112,7981,735,321
Events in quadrant C14,468,4471,649,629
Events in quadrant D11,048,5091,639,342

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03780
B03760
C03760
D03760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380784
B0583785
C0556954
D0451684

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A183051240.677411%
B183055523.015570%
C183059775.337340%
D183054252.321770%

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 20720 18306 0 0 0.00% 0.00%
B 20720 18305 107 107 0.52% 0.58%
C 20720 18305 236 236 1.14% 1.29%
D 20720 18306 258 258 1.25% 1.41%

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 13 254 34345 70.68 2265 2223 454.5
A 13 6 25404 51.0 2265 2223 454.5
A 3 137 23018 45.75 2265 2223 454.5
B 6 159 4934066 11553.3 2220 2165 426.9
B 12 18 797251 1862.54 2220 2165 426.9
B 10 245 251185 583.34 2220 2165 426.9
C 3 233 5132074 10231.56 2139 2163 501.4
C 0 10 477957 948.97 2139 2163 501.4
C 14 238 355168 704.07 2139 2163 501.4
D 8 195 1471915 2833.0 2175 2118 518.8
D 2 250 495590 951.16 2175 2118 518.8
D 13 249 490311 940.98 2175 2118 518.8

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