ASTROSAT CZTI

Data Quality Report

Orbit 28120

Creation date: 2024-06-27T19:48:18.229240
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/AS1A10_090T14_9000004064_28120cztM0_level2.evt modeM0/AS1A10_090T14_9000004064_28120cztM0_level2_quad_clean.evt
Size (bytes)610,326,72082,566,720
Size582.1 MB 78.7 MB
Events in quadrant A3,227,722531,971
Events in quadrant B3,862,519536,512
Events in quadrant C3,284,514512,546
Events in quadrant D7,644,766441,503

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139660
B0159000
C0140620
D0273820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6855160.233406%
B68541231.794573%
C6854691.006711%
D6854126318.427196%

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 7875 6856 0 0 0.00% 0.00%
B 7874 6855 63 63 0.80% 0.92%
C 7874 6855 0 0 0.00% 0.00%
D 7874 6855 1014 1014 12.88% 14.79%

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 12183 68.31 835 818 166.4
A 3 137 8083 43.66 835 818 166.4
A 0 226 7097 37.74 835 818 166.4
B 10 245 527420 3317.14 829 807 158.8
B 5 255 27841 170.29 829 807 158.8
B 12 111 19247 116.15 829 807 158.8
C 14 238 131303 687.42 806 813 189.8
C 3 233 8932 42.77 806 813 189.8
C 13 61 5351 23.91 806 813 189.8
D 1 52 2580114 14260.1 754 734 180.9
D 12 2 1164634 6434.62 754 734 180.9
D 2 250 450347 2485.68 754 734 180.9

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