ASTROSAT CZTI

Data Quality Report

Orbit 44015

Creation date: 2024-06-27T22:58:18.840561
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_9000005930_44015cztM0_level2.fits modeM0/AS1A13_037T01_9000005930_44015cztM0_level2_quad_clean.evt
Size (bytes)540,371,520126,783,360
Size515.3 MB 120.9 MB
Events in quadrant A5,762,955821,364
Events in quadrant B3,798,094883,906
Events in quadrant C4,750,374837,944
Events in quadrant D5,075,776744,221

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226690
B0167890
C0194390
D02064210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79313764.740890%
B7932991.248109%
C79321571.979324%
D79292903.657460%

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 7931 7931 211 211 2.66% 2.66%
B 7932 7932 7 7 0.09% 0.09%
C 7932 7932 120 120 1.51% 1.51%
D 7932 7930 155 155 1.95% 1.95%

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 1210553 6464.36 896 875 187.1
A 14 238 1054742 5631.73 896 875 187.1
A 15 222 17151 86.98 896 875 187.1
B 0 213 99337 544.69 907 879 180.8
B 15 36 31220 167.85 907 879 180.8
B 0 245 30888 166.02 907 879 180.8
C 15 1 497770 2373.34 884 889 209.4
C 3 233 453976 2164.16 884 889 209.4
C 14 254 224131 1066.31 884 889 209.4
D 1 52 692280 3140.62 875 845 220.2
D 2 120 241693 1093.97 875 845 220.2
D 12 233 123864 558.77 875 845 220.2

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