ASTROSAT CZTI

Data Quality Report

Orbit 10865

Creation date: 2024-06-27T16:04:53.605146
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_118T01_9000001570_10865cztM0_level2.evt modeM0/AS1A03_118T01_9000001570_10865cztM0_level2_quad_clean.evt
Size (bytes)588,677,76089,409,600
Size561.4 MB 85.3 MB
Events in quadrant A6,383,574524,817
Events in quadrant B4,993,086576,139
Events in quadrant C2,811,707602,833
Events in quadrant D3,220,405571,069

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234132
B0188881
C0126101
D0136971

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6190104416.865913%
B61905939.579968%
C6190280.452342%
D6190741.195477%

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 7190 6191 791 791 11.00% 12.78%
B 7190 6190 401 401 5.58% 6.48%
C 7190 6191 0 0 0.00% 0.00%
D 7190 6191 32 32 0.45% 0.52%

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 8 5 3608574 26410.68 676 663 136.6
A 15 223 96130 698.84 676 663 136.6
A 15 239 37211 267.54 676 663 136.6
B 4 239 2139569 15702.91 712 696 136.2
B 0 214 28335 202.92 712 696 136.2
B 0 187 17795 125.54 712 696 136.2
C 8 208 5932 31.5 718 720 165.5
C 13 61 5348 27.97 718 720 165.5
C 14 234 4383 22.14 718 720 165.5
D 1 52 193876 1110.01 715 696 174.0
D 13 105 69387 394.7 715 696 174.0
D 13 104 37700 212.62 715 696 174.0

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