ASTROSAT CZTI

Data Quality Report

Orbit 07083

Creation date: 2024-06-27T15:15:22.945141
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_090T01_9000000970_07083cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07083cztM0_level2_quad_clean.evt
Size (bytes)518,924,16095,351,040
Size494.9 MB 90.9 MB
Events in quadrant A3,230,464622,759
Events in quadrant B3,723,347623,692
Events in quadrant C3,165,164619,300
Events in quadrant D5,131,605544,323

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141582
B0155521
C0140931
D0199881

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68461161.694420%
B68461351.971954%
C6846500.730353%
D68466309.202454%

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 7121 6847 0 0 0.00% 0.00%
B 7121 6846 7 7 0.10% 0.10%
C 7121 6846 0 0 0.00% 0.00%
D 7121 6846 559 559 7.85% 8.17%

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 8773 46.44 833 819 171.3
A 0 226 7888 41.27 833 819 171.3
A 12 194 7571 39.42 833 819 171.3
B 0 219 299319 1852.97 833 816 161.1
B 0 214 168872 1043.22 833 816 161.1
B 12 111 15388 90.46 833 816 161.1
C 13 61 6290 29.12 806 811 188.1
C 4 254 5759 26.3 806 811 188.1
C 8 128 5322 23.98 806 811 188.1
D 14 34 1080207 5559.58 776 752 194.2
D 1 20 576952 2967.64 776 752 194.2
D 12 233 285424 1466.16 776 752 194.2

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