ASTROSAT CZTI

Data Quality Report

Orbit 44262

Creation date: 2024-06-27T23:01:09.090209
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/AS1A13_080T05_9000005980_44262cztM0_level2.fits modeM0/AS1A13_080T05_9000005980_44262cztM0_level2_quad_clean.evt
Size (bytes)620,789,760126,489,600
Size592.0 MB 120.6 MB
Events in quadrant A7,474,742845,124
Events in quadrant B4,925,910868,173
Events in quadrant C3,700,976830,741
Events in quadrant D6,248,637720,912

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0283820
B0202330
C0172400
D0243321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81253083.790769%
B81262523.101157%
C8126270.332267%
D81255727.040000%

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 8125 8125 164 164 2.02% 2.02%
B 8126 8126 107 107 1.32% 1.32%
C 8126 8126 19 19 0.23% 0.23%
D 8125 8125 510 510 6.28% 6.28%

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 15 223 2026746 11015.84 878 858 183.9
A 10 83 1836031 9978.82 878 858 183.9
A 7 3 92767 499.76 878 858 183.9
B 0 219 369611 2141.19 884 856 172.2
B 0 155 236099 1365.95 884 856 172.2
B 4 173 209018 1208.7 884 856 172.2
C 14 254 165442 804.46 865 865 204.6
C 5 250 123075 597.37 865 865 204.6
C 3 233 15239 70.26 865 865 204.6
D 5 222 544697 2568.35 841 813 211.8
D 5 235 524627 2473.57 841 813 211.8
D 1 20 501426 2364.01 841 813 211.8

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