ASTROSAT CZTI

Data Quality Report

Orbit 43729

Creation date: 2024-06-27T22:55:05.145624
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/AS1A13_003T01_9000005902_43729cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43729cztM0_level2_quad_clean.evt
Size (bytes)1,673,141,760287,343,360
Size1.6 GB 274.0 MB
Events in quadrant A13,076,6902,001,110
Events in quadrant B10,829,2792,063,212
Events in quadrant C18,499,0341,645,606
Events in quadrant D18,051,2521,669,523

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03900
B03900
C03900
D03900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0511794
B0456753
C0679943
D0669443

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A191475242.736721%
B191486253.264048%
C19148335917.542302%
D19148198210.350950%

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 20902 19150 265 265 1.27% 1.38%
B 20903 19151 320 320 1.53% 1.67%
C 20903 19149 2254 2254 10.78% 11.77%
D 20903 19151 1423 1423 6.81% 7.43%

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 10 83 2313157 5247.76 2138 2096 440.4
A 14 63 1003019 2272.81 2138 2096 440.4
A 15 223 645859 1461.8 2138 2096 440.4
B 5 235 1639516 3964.14 2132 2062 413.1
B 5 172 325054 781.94 2132 2062 413.1
B 4 80 108655 258.05 2132 2062 413.1
C 15 157 7326278 15923.92 1933 1945 460.0
C 15 158 1902503 4132.03 1933 1945 460.0
C 14 254 504150 1091.85 1933 1945 460.0
D 1 52 1961836 3733.7 2044 1977 524.9
D 7 80 1417637 2696.95 2044 1977 524.9
D 8 48 1032318 1962.89 2044 1977 524.9

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