ASTROSAT CZTI

Data Quality Report

Orbit 45070

Creation date: 2024-06-27T23:09:36.335782
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_020T01_9000006040_45070cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45070cztM0_level2_quad_clean.evt
Size (bytes)557,303,040116,824,320
Size531.5 MB 111.4 MB
Events in quadrant A6,106,010773,188
Events in quadrant B3,625,217812,219
Events in quadrant C3,622,945779,309
Events in quadrant D6,727,616680,586

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0229275
B0153862
C0155662
D0250482

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70634276.045590%
B70642813.977916%
C70642673.779728%
D70647029.937712%

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 8038 7064 46 46 0.57% 0.65%
B 8039 7065 22 22 0.27% 0.31%
C 8039 7065 64 64 0.80% 0.91%
D 8039 7065 463 463 5.76% 6.55%

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 2637449 15048.37 844 828 175.2
A 13 248 157863 896.27 844 828 175.2
A 10 248 29154 161.67 844 828 175.2
B 5 255 155862 924.45 847 822 167.7
B 0 183 45334 265.41 847 822 167.7
B 0 186 32212 187.17 847 822 167.7
C 14 254 163295 828.43 838 842 196.1
C 1 241 144390 732.02 838 842 196.1
C 1 3 35340 175.92 838 842 196.1
D 11 241 1510980 7315.64 824 799 206.4
D 13 187 520251 2516.34 824 799 206.4
D 1 52 398507 1926.58 824 799 206.4

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