ASTROSAT CZTI

Data Quality Report

Orbit 22194

Creation date: 2024-06-27T18:37:57.360115
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/AS1A07_065T01_9000003284_22194cztM0_level2.evt modeM0/AS1A07_065T01_9000003284_22194cztM0_level2_quad_clean.evt
Size (bytes)533,730,24087,946,560
Size509.0 MB 83.9 MB
Events in quadrant A3,629,469547,163
Events in quadrant B3,729,626550,358
Events in quadrant C3,666,892526,950
Events in quadrant D4,625,809513,817

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156042
B0157443
C0156462
D0186602

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75451261.669980%
B75441532.028102%
C75441932.558324%
D75443564.718982%

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 7810 7547 0 0 0.00% 0.00%
B 7809 7546 0 0 0.00% 0.00%
C 7809 7546 0 0 0.00% 0.00%
D 7809 7546 221 221 2.83% 2.93%

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 13403 65.56 941 921 190.4
A 3 137 8252 38.51 941 921 190.4
A 0 226 7934 36.84 941 921 190.4
B 0 190 40333 218.84 931 907 180.2
B 12 111 22221 118.31 931 907 180.2
B 11 111 19831 105.04 931 907 180.2
C 14 238 139142 648.97 895 900 213.0
C 10 22 13897 61.01 895 900 213.0
C 8 128 13269 58.07 895 900 213.0
D 1 52 954176 4337.43 906 880 219.8
D 12 227 89343 402.5 906 880 219.8
D 13 104 49120 219.49 906 880 219.8

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