ASTROSAT CZTI

Data Quality Report

Orbit 09680

Creation date: 2024-06-27T15:49:18.542863
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/AS1A02_198T01_9000001376_09680cztM0_level2.evt modeM0/AS1A02_198T01_9000001376_09680cztM0_level2_quad_clean.evt
Size (bytes)493,603,20091,848,960
Size470.7 MB 87.6 MB
Events in quadrant A3,685,051577,161
Events in quadrant B3,438,627581,008
Events in quadrant C3,285,554582,684
Events in quadrant D4,068,044556,641

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152833
B0146932
C0144082
D0170532

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6944380.547235%
B6944430.619240%
C6944480.691244%
D6944821.180876%

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 9079 6946 0 0 0.00% 0.00%
B 9079 6946 4 4 0.04% 0.06%
C 9079 6946 21 21 0.23% 0.30%
D 9079 6946 59 59 0.65% 0.85%

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 8 15 438424 2606.63 829 811 167.9
A 15 174 31532 182.99 829 811 167.9
A 1 162 15486 87.41 829 811 167.9
B 0 214 75844 476.87 834 815 157.3
B 0 219 39875 248.26 834 815 157.3
B 12 111 17220 104.27 834 815 157.3
C 14 234 102797 545.65 812 816 186.9
C 9 68 16279 82.73 812 816 186.9
C 13 61 6000 27.74 812 816 186.9
D 8 195 702148 3608.11 801 781 194.4
D 1 52 187793 962.06 801 781 194.4
D 2 152 38962 196.42 801 781 194.4

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