ASTROSAT CZTI

Data Quality Report

Orbit 28341

Creation date: 2024-06-27T19:50:41.554254
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_116T01_9000004082_28341cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28341cztM0_level2_quad_clean.evt
Size (bytes)539,602,56095,880,960
Size514.6 MB 91.4 MB
Events in quadrant A3,228,424640,139
Events in quadrant B4,116,798654,752
Events in quadrant C3,214,553621,494
Events in quadrant D5,366,278558,591

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133860
B0161890
C0132350
D0199980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6141290.472236%
B61412303.745318%
C6140510.830619%
D61405088.273616%

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 7486 6142 0 0 0.00% 0.00%
B 7486 6142 141 141 1.88% 2.30%
C 7485 6141 0 0 0.00% 0.00%
D 7485 6141 484 484 6.47% 7.88%

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 15 190 25960 155.21 821 808 162.0
A 15 174 22315 132.72 821 808 162.0
A 13 254 10398 59.18 821 808 162.0
B 10 245 733922 4832.79 817 799 151.7
B 10 246 130224 853.18 817 799 151.7
B 15 32 20831 132.05 817 799 151.7
C 14 238 130851 711.5 788 795 182.8
C 3 233 7220 35.15 788 795 182.8
C 13 61 5461 25.53 788 795 182.8
D 1 52 2037858 11470.56 755 737 177.6
D 8 195 336120 1888.46 755 737 177.6
D 2 250 112387 628.67 755 737 177.6

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