ASTROSAT CZTI

Data Quality Report

Orbit 16003

Creation date: 2024-06-27T17:16:38.822131
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_046T09_9000002362_16003cztM0_level2.evt modeM0/AS1G08_046T09_9000002362_16003cztM0_level2_quad_clean.evt
Size (bytes)170,115,84041,457,600
Size162.2 MB 39.5 MB
Events in quadrant A1,137,896273,437
Events in quadrant B1,237,006275,596
Events in quadrant C1,169,006263,684
Events in quadrant D1,434,508261,584

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050960
B053210
C051110
D060620

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A251920.079397%
B2519140.555776%
C251970.277888%
D2519923.652243%

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 2520 2520 0 0 0.00% 0.00%
B 2520 2520 10 10 0.40% 0.40%
C 2520 2520 0 0 0.00% 0.00%
D 2520 2520 79 79 3.13% 3.13%

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 15 174 15726 257.19 290 284 60.0
A 0 226 2613 38.79 290 284 60.0
A 12 194 2243 32.63 290 284 60.0
B 7 220 60206 1054.79 284 277 56.8
B 0 245 28870 503.26 284 277 56.8
B 4 216 20912 363.19 284 277 56.8
C 3 233 73596 1140.31 270 271 64.3
C 14 238 41296 638.0 270 271 64.3
C 13 61 2015 27.12 270 271 64.3
D 4 239 328781 4775.22 275 266 68.8
D 10 70 18149 259.94 275 266 68.8
D 15 145 13372 190.51 275 266 68.8

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