ASTROSAT CZTI

Data Quality Report

Orbit 28333

Creation date: 2024-06-27T19:50:36.942011
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_28333cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28333cztM0_level2_quad_clean.evt
Size (bytes)544,487,04079,894,080
Size519.3 MB 76.2 MB
Events in quadrant A3,501,844484,618
Events in quadrant B3,731,911490,968
Events in quadrant C3,701,982470,550
Events in quadrant D5,045,800451,988

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153180
B0157540
C0155050
D0198710

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74871201.602778%
B74881712.283654%
C74881612.150107%
D74882242.991453%

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 7722 7488 0 0 0.00% 0.00%
B 7723 7488 13 13 0.17% 0.17%
C 7723 7490 0 0 0.00% 0.00%
D 7723 7489 118 118 1.53% 1.58%

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 12546 63.18 907 887 184.5
A 3 137 9266 45.4 907 887 184.5
A 0 226 7545 36.08 907 887 184.5
B 10 245 100816 568.93 904 881 175.7
B 15 32 41486 231.16 904 881 175.7
B 10 246 22958 125.68 904 881 175.7
C 14 238 138246 668.66 876 880 205.4
C 3 233 126290 610.46 876 880 205.4
C 8 128 12990 58.95 876 880 205.4
D 1 52 841392 4009.41 876 851 209.6
D 8 195 797616 3800.6 876 851 209.6
D 2 250 91475 432.28 876 851 209.6

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