ASTROSAT CZTI

Data Quality Report

Orbit 11570

Creation date: 2024-06-27T16:15:14.173732
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/AS1A04_112T01_9000001698_11570cztM0_level2.evt modeM0/AS1A04_112T01_9000001698_11570cztM0_level2_quad_clean.evt
Size (bytes)683,974,080104,722,560
Size652.3 MB 99.9 MB
Events in quadrant A6,932,865634,616
Events in quadrant B5,658,692673,740
Events in quadrant C3,301,661682,952
Events in quadrant D4,310,132654,768

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0258324
B0219183
C0154013
D0183143

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A754296012.728719%
B75427189.520021%
C7542380.503845%
D75421582.094935%

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 7823 7545 420 420 5.37% 5.57%
B 7823 7545 331 331 4.23% 4.39%
C 7823 7545 0 0 0.00% 0.00%
D 7823 7545 81 81 1.04% 1.07%

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 5 3148192 18449.86 829 810 170.6
A 1 162 204067 1191.49 829 810 170.6
A 1 178 125844 732.95 829 810 170.6
B 4 239 1797710 11189.6 847 826 160.6
B 15 204 206789 1282.58 847 826 160.6
B 11 51 173777 1077.0 847 826 160.6
C 13 61 6261 27.71 845 849 195.3
C 0 207 3141 11.74 845 849 195.3
C 12 4 3098 11.52 845 849 195.3
D 2 120 358498 1798.67 834 809 198.9
D 5 222 258111 1293.87 834 809 198.9
D 10 253 230435 1154.7 834 809 198.9

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