ASTROSAT CZTI

Data Quality Report

Orbit 12052

Creation date: 2024-06-27T16:21:46.086855
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/AS1A03_085T02_9000001784_12052cztM0_level2.evt modeM0/AS1A03_085T02_9000001784_12052cztM0_level2_quad_clean.evt
Size (bytes)537,978,24082,967,040
Size513.1 MB 79.1 MB
Events in quadrant A3,521,484517,799
Events in quadrant B5,092,010503,564
Events in quadrant C3,348,148510,954
Events in quadrant D3,858,449494,779

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149153
B0196462
C0146122
D0157162

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69681552.224455%
B69685187.433984%
C69681141.636051%
D69681361.951780%

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 8824 6969 4 4 0.05% 0.06%
B 8824 6969 200 200 2.27% 2.87%
C 8824 6969 7 7 0.08% 0.10%
D 8824 6969 13 13 0.15% 0.19%

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 1 162 49553 271.76 876 857 179.2
A 1 178 22262 119.46 876 857 179.2
A 5 16 21712 116.39 876 857 179.2
B 4 239 1165661 7019.73 860 839 165.9
B 0 85 203796 1223.11 860 839 165.9
B 15 204 150255 900.45 860 839 165.9
C 14 234 35585 176.06 848 853 197.3
C 13 61 6038 26.28 848 853 197.3
C 7 247 4571 18.85 848 853 197.3
D 8 195 292811 1431.48 844 821 204.0
D 1 52 281337 1375.23 844 821 204.0
D 10 50 47360 228.16 844 821 204.0

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