ASTROSAT CZTI

Data Quality Report

Orbit 44165

Creation date: 2024-06-27T22:59:58.931628
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_079T01_9000005956_44165cztM0_level2.fits modeM0/AS1A13_079T01_9000005956_44165cztM0_level2_quad_clean.evt
Size (bytes)310,593,60067,314,240
Size296.2 MB 64.2 MB
Events in quadrant A4,385,105425,185
Events in quadrant B2,349,521467,683
Events in quadrant C1,987,583447,087
Events in quadrant D2,449,394404,533

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111
B0111
C0111
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016487303
B010197169
C09115137
D010369172

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0862
B0873
C0851
D0862

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A417151012.227284%
B41701202.877698%
C4180771.842105%
D41731383.306973%

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 5137 4181 326 326 6.35% 7.80%
B 5145 4187 21 21 0.41% 0.50%
C 5155 4197 11 11 0.21% 0.26%
D 5154 4189 71 71 1.38% 1.69%

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 15 223 1738258 17752.07 463 452 97.9
A 10 83 812570 8295.97 463 452 97.9
A 7 3 37298 376.39 463 452 97.9
B 5 255 151310 1589.16 472 456 94.9
B 0 219 117957 1237.8 472 456 94.9
B 0 230 110009 1154.07 472 456 94.9
C 14 254 91751 836.07 464 464 109.2
C 4 254 66653 606.21 464 464 109.2
C 15 208 6792 57.96 464 464 109.2
D 13 187 262879 2217.19 462 447 118.4
D 13 249 181583 1530.35 462 447 118.4
D 1 47 38944 325.25 462 447 118.4

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