ASTROSAT CZTI

Data Quality Report

Orbit 43913

Creation date: 2024-06-27T22:57:08.152280
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_009T02_9000005914_43913cztM0_level2.fits modeM0/AS1A13_009T02_9000005914_43913cztM0_level2_quad_clean.evt
Size (bytes)659,257,920127,929,600
Size628.7 MB 122.0 MB
Events in quadrant A7,165,908840,311
Events in quadrant B4,366,630903,423
Events in quadrant C4,201,246857,346
Events in quadrant D8,032,741701,228

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0276341
B0184251
C0181431
D0295981

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82177048.567604%
B82172172.640866%
C82181371.667072%
D8218120114.614261%

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 8217 8217 395 395 4.81% 4.81%
B 8217 8217 24 24 0.29% 0.29%
C 8218 8218 11 11 0.13% 0.13%
D 8218 8218 955 955 11.62% 11.62%

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 1864960 9220.25 957 936 202.2
A 10 83 1227413 6066.67 957 936 202.2
A 15 222 243424 1199.45 957 936 202.2
B 5 235 172017 878.47 966 936 194.7
B 15 36 107700 548.21 966 936 194.7
B 5 172 68445 346.65 966 936 194.7
C 3 233 254559 1122.27 951 954 226.0
C 15 158 108464 475.76 951 954 226.0
C 15 157 55843 242.9 951 954 226.0
D 7 80 1231389 5259.67 910 877 234.0
D 1 52 938376 4007.22 910 877 234.0
D 5 235 616551 2631.62 910 877 234.0

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