ASTROSAT CZTI

Data Quality Report

Orbit 28084

Creation date: 2024-06-27T19:47:52.128981
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/AS1A10_073T01_9000004056_28084cztM0_level2.evt modeM0/AS1A10_073T01_9000004056_28084cztM0_level2_quad_clean.evt
Size (bytes)538,341,120139,008,960
Size513.4 MB 132.6 MB
Events in quadrant A3,358,798975,714
Events in quadrant B3,401,581959,516
Events in quadrant C3,378,375905,611
Events in quadrant D5,690,113881,976

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143100
B0144560
C0142760
D0216590

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69981011.443270%
B69991281.828833%
C69991231.757394%
D69984286.116033%

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 7783 6998 0 0 0.00% 0.00%
B 7784 6999 12 12 0.15% 0.17%
C 7784 7000 0 0 0.00% 0.00%
D 7783 6998 262 262 3.37% 3.74%

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 0 13 22806 128.03 863 847 171.5
A 13 254 11703 63.29 863 847 171.5
A 3 137 7966 41.51 863 847 171.5
B 5 172 35297 219.64 842 821 157.0
B 12 111 18955 115.53 842 821 157.0
B 4 200 17595 106.87 842 821 157.0
C 14 238 132174 699.41 808 811 187.8
C 3 233 97062 512.47 808 811 187.8
C 13 61 5682 25.93 808 811 187.8
D 1 52 959475 4976.61 813 790 192.6
D 8 195 770924 3997.83 813 790 192.6
D 2 250 509961 2643.15 813 790 192.6

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