ASTROSAT CZTI

Data Quality Report

Orbit 28129

Creation date: 2024-06-27T19:48:24.979728
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_045T04_9000004066_28129cztM0_level2.evt modeM0/AS1A10_045T04_9000004066_28129cztM0_level2_quad_clean.evt
Size (bytes)642,098,88087,989,760
Size612.4 MB 83.9 MB
Events in quadrant A3,661,423548,978
Events in quadrant B5,244,818554,898
Events in quadrant C3,675,180528,701
Events in quadrant D6,357,481510,517

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155520
B0204290
C0155660
D0239050

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74931742.322167%
B74944055.404323%
C74942232.975714%
D749475310.048038%

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 7678 7494 0 0 0.00% 0.00%
B 7679 7494 120 120 1.56% 1.60%
C 7679 7494 0 0 0.00% 0.00%
D 7679 7494 522 522 6.80% 6.97%

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 11398 54.54 946 924 192.0
A 0 13 11353 54.31 946 924 192.0
A 3 137 9374 44.0 946 924 192.0
B 10 245 1248352 6921.56 926 900 180.2
B 15 32 274342 1517.21 926 900 180.2
B 4 200 48674 265.07 926 900 180.2
C 14 238 144051 670.22 899 903 213.6
C 15 208 16796 74.41 899 903 213.6
C 3 233 11010 47.32 899 903 213.6
D 1 52 2012513 9409.34 891 867 213.8
D 5 222 608404 2841.71 891 867 213.8
D 2 250 133415 619.98 891 867 213.8

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