ASTROSAT CZTI

Data Quality Report

Orbit 17096

Creation date: 2024-06-27T17:32:01.027709
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/AS1A05_004T06_9000002536_17096cztM0_level2.evt modeM0/AS1A05_004T06_9000002536_17096cztM0_level2_quad_clean.evt
Size (bytes)473,163,84080,850,240
Size451.2 MB 77.1 MB
Events in quadrant A3,328,156502,471
Events in quadrant B3,496,951511,809
Events in quadrant C3,368,645485,794
Events in quadrant D3,671,479471,714

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143102
B0146432
C0143152
D0156212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6838761.111436%
B68381131.652530%
C68381071.564785%
D6839821.199006%

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 9348 6840 1 1 0.01% 0.01%
B 9348 6840 6 6 0.06% 0.09%
C 9348 6840 0 0 0.00% 0.00%
D 9349 6841 41 41 0.44% 0.60%

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 4 2 29100 163.44 856 839 172.9
A 10 1 8838 46.26 856 839 172.9
A 0 226 7577 38.97 856 839 172.9
B 0 197 35340 210.89 861 839 163.6
B 7 220 29253 173.68 861 839 163.6
B 12 111 18877 110.26 861 839 163.6
C 14 238 126432 660.76 821 824 190.1
C 3 233 17352 86.95 821 824 190.1
C 7 247 15671 78.1 821 824 190.1
D 5 222 404250 2004.0 824 797 201.3
D 10 70 59542 291.79 824 797 201.3
D 1 52 42837 208.82 824 797 201.3

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