ASTROSAT CZTI

Data Quality Report

Orbit 29249

Creation date: 2024-06-27T20:01:56.320145
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/AS1T03_272T01_9000004204_29249cztM0_level2.evt modeM0/AS1T03_272T01_9000004204_29249cztM0_level2_quad_clean.evt
Size (bytes)2,328,963,840236,592,000
Size2.2 GB 225.6 MB
Events in quadrant A8,533,8281,620,234
Events in quadrant B10,055,3961,641,389
Events in quadrant C35,806,8921,162,649
Events in quadrant D14,901,0261,471,803

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03740
B03740
C03740
D03740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0372594
B0418284
C01189374
D0567194

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A18362700.381222%
B183622991.628363%
C183621343473.161965%
D1836213937.586320%

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 20357 18365 0 0 0.00% 0.00%
B 20357 18365 66 66 0.32% 0.36%
C 20357 18365 9919 9919 48.73% 54.01%
D 20357 18365 1007 1007 4.95% 5.48%

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 13 254 36593 78.23 2203 2158 440.2
A 0 13 23959 49.53 2203 2158 440.2
A 3 137 21658 44.3 2203 2158 440.2
B 10 245 642849 1549.38 2185 2125 413.5
B 0 229 458032 1102.46 2185 2125 413.5
B 0 183 149715 356.9 2185 2125 413.5
C 3 233 28760833 77596.54 1596 1604 370.6
C 14 238 461462 1240.76 1596 1604 370.6
C 14 254 330835 888.31 1596 1604 370.6
D 1 52 4615878 9299.83 2079 2022 496.1
D 7 80 870813 1751.16 2079 2022 496.1
D 8 195 564748 1134.25 2079 2022 496.1

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