ASTROSAT CZTI

Data Quality Report

Orbit 10078

Creation date: 2024-06-27T15:54:39.022658
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/AS1A03_044T04_9000001448_10078cztM0_level2.evt modeM0/AS1A03_044T04_9000001448_10078cztM0_level2_quad_clean.evt
Size (bytes)38,030,4008,665,920
Size36.3 MB 8.3 MB
Events in quadrant A276,39653,935
Events in quadrant B280,67657,742
Events in quadrant C264,52754,248
Events in quadrant D285,07045,851

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01591314644
B01603914768
C01548014232
D01819817013

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A096
B084
C097
D099

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152138
B0150135
C0153145
D0155143

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61730.486224%
B61881.294498%
C61900.000000%
D55020.363636%

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 7527 1094 0 0 0.00% 0.00%
B 7536 1114 0 0 0.00% 0.00%
C 7609 1103 0 0 0.00% 0.00%
D 7507 980 0 0 0.00% 0.00%

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 0 8 9513 591.11 68 67 16.0
A 8 15 1432 85.42 68 67 16.0
A 13 253 1014 59.26 68 67 16.0
B 0 214 1592 94.1 70 68 16.2
B 12 111 1559 92.06 70 68 16.2
B 4 239 1538 90.77 70 68 16.2
C 13 61 526 25.59 67 67 17.9
C 14 67 516 25.03 67 67 17.9
C 8 222 402 18.68 67 67 17.9
D 8 195 32013 1888.56 58 56 16.9
D 2 152 11693 687.71 58 56 16.9
D 10 199 9164 538.26 58 56 16.9

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