ASTROSAT CZTI

Data Quality Report

Orbit 33412

Creation date: 2024-06-27T20:48:33.342728
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/AS1C07_001T03_9000004790_33412cztM0_level2.evt modeM0/AS1C07_001T03_9000004790_33412cztM0_level2_quad_clean.evt
Size (bytes)589,014,72074,419,200
Size561.7 MB 71.0 MB
Events in quadrant A2,377,594522,646
Events in quadrant B4,925,643483,633
Events in quadrant C2,780,531498,074
Events in quadrant D7,394,739376,193

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106403
B0181502
C0113792
D0255332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A530850.094197%
B530867612.735494%
C5308460.866616%
D5308144427.204220%

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 7041 5309 0 0 0.00% 0.00%
B 7041 5309 549 549 7.80% 10.34%
C 7041 5309 35 35 0.50% 0.66%
D 7041 5309 1369 1369 19.44% 25.79%

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 10685 82.8 611 599 121.8
A 13 254 9696 74.68 611 599 121.8
A 3 137 5702 41.89 611 599 121.8
B 5 172 1502199 13589.28 575 560 110.5
B 5 255 797537 7212.35 575 560 110.5
B 0 213 133897 1206.65 575 560 110.5
C 15 214 232410 1728.94 584 587 134.1
C 0 10 132737 985.58 584 587 134.1
C 1 23 53982 398.22 584 587 134.1
D 1 52 3257781 27078.68 488 473 120.3
D 8 195 1465297 12177.39 488 473 120.3
D 12 218 224257 1860.36 488 473 120.3

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