ASTROSAT CZTI

Data Quality Report

Orbit 34156

Creation date: 2024-06-27T20:57:12.615176
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/AS1A11_054T07_9000004878_34156cztM0_level2.evt modeM0/AS1A11_054T07_9000004878_34156cztM0_level2_quad_clean.evt
Size (bytes)500,708,16074,007,360
Size477.5 MB 70.6 MB
Events in quadrant A2,881,846456,009
Events in quadrant B3,407,913464,445
Events in quadrant C3,700,773451,409
Events in quadrant D4,753,461437,014

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125673
B0141322
C0148762
D0183582

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A618880.129282%
B6188921.486749%
C61881221.971558%
D61884998.063995%

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 9230 6190 0 0 0.00% 0.00%
B 9230 6190 56 56 0.61% 0.90%
C 9230 6190 84 84 0.91% 1.36%
D 9230 6190 391 391 4.24% 6.32%

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 22535 145.31 737 723 150.1
A 13 254 10749 66.79 737 723 150.1
A 13 6 10451 64.81 737 723 150.1
B 5 255 244296 1718.76 733 714 141.7
B 5 172 83391 583.39 733 714 141.7
B 0 219 51245 356.56 733 714 141.7
C 0 10 598844 3593.61 710 714 166.4
C 15 214 263264 1577.42 710 714 166.4
C 14 67 32029 188.14 710 714 166.4
D 8 195 795523 4730.82 687 668 168.0
D 8 230 563440 3349.51 687 668 168.0
D 5 223 365831 2173.38 687 668 168.0

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