ASTROSAT CZTI

Data Quality Report

Orbit 43239

Creation date: 2024-06-27T22:49:38.935587
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/AS1A06_006T01_9000005860_43239cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43239cztM0_level2_quad_clean.evt
Size (bytes)818,208,000200,571,840
Size780.3 MB 191.3 MB
Events in quadrant A7,131,5381,351,642
Events in quadrant B5,460,6751,430,855
Events in quadrant C6,099,3421,350,139
Events in quadrant D10,615,4411,066,831

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02580
B02580
C02580
D02580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290284
B0253663
C0261333
D0407903

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A126381891.495490%
B1263980.063296%
C12639320.253185%
D12639189615.001187%

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 17447 12641 149 149 0.85% 1.18%
B 17448 12642 1 1 0.01% 0.01%
C 17448 12642 17 17 0.10% 0.13%
D 17448 12642 1811 1811 10.38% 14.33%

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 1137963 4051.98 1364 1332 280.5
A 15 237 471254 1675.23 1364 1332 280.5
A 13 248 163636 578.6 1364 1332 280.5
B 0 189 54861 199.5 1371 1328 268.3
B 12 111 34095 122.11 1371 1328 268.3
B 11 111 31693 113.16 1371 1328 268.3
C 15 214 561739 1771.18 1356 1367 316.4
C 14 254 162501 509.3 1356 1367 316.4
C 3 233 70354 218.05 1356 1367 316.4
D 1 52 5062120 16844.43 1227 1192 300.5
D 2 249 335585 1112.97 1227 1192 300.5
D 12 6 281869 934.19 1227 1192 300.5

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