ASTROSAT CZTI

Data Quality Report

Orbit 03579

Creation date: 2024-06-27T14:31:14.065994
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/AS1G05_246T03_9000000470_03579cztM0_level2.evt modeM0/AS1G05_246T03_9000000470_03579cztM0_level2_quad_clean.evt
Size (bytes)16,882,5602,848,320
Size16.1 MB 2.7 MB
Events in quadrant A109,40814,118
Events in quadrant B135,88414,168
Events in quadrant C113,68214,592
Events in quadrant D128,68814,114

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05811
B05990
C05810
D06240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A29100.000000%
B29100.000000%
C29100.000000%
D29120.687285%

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 291 291 0 0 0.00% 0.00%
B 291 291 0 0 0.00% 0.00%
C 291 291 0 0 0.00% 0.00%
D 291 291 2 2 0.69% 0.69%

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 0 226 290 33.44 28 27 7.9
A 12 194 275 31.53 28 27 7.9
A 3 1 226 25.3 28 27 7.9
B 15 204 15929 2009.4 29 28 7.9
B 4 81 3359 420.94 29 28 7.9
B 10 246 2448 305.81 29 28 7.9
C 8 128 863 98.87 28 28 8.4
C 8 112 354 38.6 28 28 8.4
C 8 144 311 33.51 28 28 8.4
D 13 223 15108 1711.22 27 26 8.8
D 14 34 5246 592.27 27 26 8.8
D 5 233 2676 300.67 27 26 8.8

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