ASTROSAT CZTI

Data Quality Report

Orbit 43016

Creation date: 2024-06-27T22:46:57.397258
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/AS1T05_148T01_9000005838_43016cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43016cztM0_level2_quad_clean.evt
Size (bytes)385,721,280110,888,640
Size367.9 MB 105.8 MB
Events in quadrant A3,543,558762,478
Events in quadrant B3,458,409774,310
Events in quadrant C2,917,101743,461
Events in quadrant D3,896,908662,582

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144632
B0144122
C0122212
D0157172

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59421071.800740%
B5943921.548040%
C594330.050480%
D59431662.793202%

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 8597 5943 65 65 0.76% 1.09%
B 8598 5945 46 46 0.54% 0.77%
C 8598 5945 0 0 0.00% 0.00%
D 8598 5945 127 127 1.48% 2.14%

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 10 83 616289 4204.51 689 678 146.4
A 15 237 250427 1705.74 689 678 146.4
A 13 6 7606 47.32 689 678 146.4
B 0 186 576933 4159.14 687 673 138.6
B 5 255 66553 475.49 687 673 138.6
B 4 171 59577 425.14 687 673 138.6
C 15 214 258954 1570.6 674 683 164.4
C 0 239 18518 108.46 674 683 164.4
C 15 111 9054 50.91 674 683 164.4
D 1 52 497909 2917.97 663 645 170.4
D 13 249 332985 1950.19 663 645 170.4
D 12 6 209735 1226.95 663 645 170.4

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