ASTROSAT CZTI

Data Quality Report

Orbit 23584

Creation date: 2024-06-27T18:56:27.301839
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/AS1A07_011T01_9000003482_23584cztM0_level2.evt modeM0/AS1A07_011T01_9000003482_23584cztM0_level2_quad_clean.evt
Size (bytes)482,898,24093,911,040
Size460.5 MB 89.6 MB
Events in quadrant A3,381,356594,676
Events in quadrant B3,593,161603,181
Events in quadrant C3,422,215578,922
Events in quadrant D3,743,642570,766

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01484
B01484
C01488
D01484

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015252470
B015767566
C015250471
D016684681

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71391922.689452%
B71242042.863560%
C71472052.868336%
D71121742.446569%

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 7871 7204 18 18 0.23% 0.25%
B 7867 7188 6 6 0.08% 0.08%
C 7869 7212 0 0 0.00% 0.00%
D 7869 7182 33 33 0.42% 0.46%

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 15 174 53906 305.38 859 840 173.8
A 13 254 12859 69.17 859 840 173.8
A 6 16 9551 50.13 859 840 173.8
B 3 64 77096 466.09 849 826 163.6
B 0 189 68029 410.68 849 826 163.6
B 0 229 25406 150.21 849 826 163.6
C 14 238 128850 668.61 818 819 191.5
C 3 233 43911 225.04 818 819 191.5
C 10 9 26378 133.47 818 819 191.5
D 7 38 162969 795.99 830 805 203.7
D 1 52 141294 689.6 830 805 203.7
D 12 233 111802 544.84 830 805 203.7

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