ASTROSAT CZTI

Data Quality Report

Orbit 44690

Creation date: 2024-06-27T23:05:18.919644
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_072T01_9000006008_44690cztM0_level2.fits modeM0/AS1A13_072T01_9000006008_44690cztM0_level2_quad_clean.evt
Size (bytes)138,522,24033,935,040
Size132.1 MB 32.4 MB
Events in quadrant A1,723,349225,124
Events in quadrant B1,111,519232,019
Events in quadrant C939,730226,081
Events in quadrant D1,203,249206,279

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A065701
B045471
C040421
D048471

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A1140129412421672140127602999342
B1-1-1
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1896693.639241%
B1896643.375527%
C1896110.580169%
D1896231.213080%

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 1896 1896 13 13 0.69% 0.69%
B 1896 1896 28 28 1.48% 1.48%
C 1896 1896 3 3 0.16% 0.16%
D 1896 1896 18 18 0.95% 0.95%

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 681939 14253.39 223 218 47.8
A 15 223 113404 2366.49 223 218 47.8
A 13 248 36495 758.48 223 218 47.8
B 0 186 160972 3534.42 225 219 45.5
B 0 183 18204 395.43 225 219 45.5
B 0 168 9378 201.38 225 219 45.5
C 14 254 20532 369.17 228 228 55.0
C 3 233 12963 231.55 228 228 55.0
C 2 14 6808 119.63 228 228 55.0
D 1 52 154954 2679.6 225 217 57.7
D 11 241 64044 1105.3 225 217 57.7
D 13 249 31193 536.41 225 217 57.7

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