ASTROSAT CZTI

Data Quality Report

Orbit 47191

Creation date: 2024-06-27T23:32:39.523848
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_037T01_9000006300_47191cztM0_level2.fits modeM0/AS1A13_037T01_9000006300_47191cztM0_level2_quad_clean.evt
Size (bytes)576,072,000125,533,440
Size549.4 MB 119.7 MB
Events in quadrant A7,624,382830,651
Events in quadrant B4,091,127865,538
Events in quadrant C4,045,161805,215
Events in quadrant D4,946,496745,664

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02854411
B0174514
C0177910
D0204439

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79602933.680905%
B79611882.361512%
C79641872.348066%
D79622332.926400%

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 7964 7963 3 3 0.04% 0.04%
B 7964 7964 18 18 0.23% 0.23%
C 7964 7964 101 101 1.27% 1.27%
D 7964 7963 130 130 1.63% 1.63%

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 3959266 20737.69 911 888 190.9
A 9 191 104570 543.18 911 888 190.9
A 14 235 30436 154.8 911 888 190.9
B 0 190 350200 1908.23 909 878 183.1
B 0 200 51414 276.06 909 878 183.1
B 4 21 33780 179.73 909 878 183.1
C 14 254 459347 2197.22 884 885 208.7
C 15 208 117230 557.59 884 885 208.7
C 3 233 17418 79.24 884 885 208.7
D 6 112 1150834 5142.92 890 857 223.6
D 5 171 76578 338.64 890 857 223.6
D 13 171 58559 258.05 890 857 223.6

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