ASTROSAT CZTI

Data Quality Report

Orbit 46208

Creation date: 2024-06-27T23:20:24.996456
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_093T40_9000006182_46208cztM0_level2.fits modeM0/AS1A13_093T40_9000006182_46208cztM0_level2_quad_clean.evt
Size (bytes)1,529,216,640292,970,880
Size1.4 GB 279.4 MB
Events in quadrant A17,509,5941,995,028
Events in quadrant B11,210,7732,062,026
Events in quadrant C9,475,5121,962,783
Events in quadrant D16,912,8001,513,375

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03960
B03960
C03960
D03960

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0636253
B0460333
C0424213
D0635303

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A193936733.470324%
B193944872.511086%
C193944712.428586%
D19394299815.458389%

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 21113 19394 79 79 0.37% 0.41%
B 21114 19395 95 95 0.45% 0.49%
C 21114 19395 214 214 1.01% 1.10%
D 21114 19396 2252 2252 10.67% 11.61%

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 8358693 19005.51 2136 2082 439.7
A 9 191 580250 1314.93 2136 2082 439.7
A 13 248 163461 367.03 2136 2082 439.7
B 3 112 2058049 4940.86 2133 2064 416.1
B 5 255 173747 412.58 2133 2064 416.1
B 5 172 149426 354.13 2133 2064 416.1
C 14 254 513443 1039.9 2100 2104 491.7
C 12 2 333698 674.35 2100 2104 491.7
C 10 218 234455 472.53 2100 2104 491.7
D 5 171 4345035 8873.17 1930 1864 489.5
D 1 52 1826019 3726.78 1930 1864 489.5
D 13 249 1431063 2919.88 1930 1864 489.5

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