ASTROSAT CZTI

Data Quality Report

Orbit 33132

Creation date: 2024-06-27T20:45:18.627914
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/AS1A11_096T01_9000004766_33132cztM0_level2.evt modeM0/AS1A11_096T01_9000004766_33132cztM0_level2_quad_clean.evt
Size (bytes)548,524,80054,826,560
Size523.1 MB 52.3 MB
Events in quadrant A2,824,757332,264
Events in quadrant B4,239,223329,739
Events in quadrant C3,334,651315,762
Events in quadrant D5,844,445300,080

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115913
B0162022
C0132302
D0213422

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A545740.073300%
B54573786.926883%
C54571242.272311%
D545758310.683526%

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 7401 5458 0 0 0.00% 0.00%
B 7401 5458 236 236 3.19% 4.32%
C 7401 5458 74 74 1.00% 1.36%
D 7401 5458 455 455 6.15% 8.34%

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 13 6 10799 70.24 728 714 143.6
A 13 254 10361 67.19 728 714 143.6
A 0 226 6458 40.01 728 714 143.6
B 5 172 938913 7231.47 700 685 129.7
B 0 219 127661 978.68 700 685 129.7
B 5 200 89059 681.15 700 685 129.7
C 0 10 296901 1912.08 685 693 154.9
C 7 221 148423 953.63 685 693 154.9
C 9 187 88668 567.9 685 693 154.9
D 8 195 916002 5451.26 675 661 167.9
D 7 38 492287 2927.85 675 661 167.9
D 2 250 277699 1649.88 675 661 167.9

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