ASTROSAT CZTI

Data Quality Report

Orbit 22582

Creation date: 2024-06-27T18:43:11.282003
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/AS1C05_013T01_9000003350_22582cztM0_level2.evt modeM0/AS1C05_013T01_9000003350_22582cztM0_level2_quad_clean.evt
Size (bytes)263,399,04078,626,880
Size251.2 MB 75.0 MB
Events in quadrant A1,825,519529,665
Events in quadrant B2,017,967538,399
Events in quadrant C1,906,750525,317
Events in quadrant D1,962,594514,974

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A079651
B085271
C081031
D086241

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3859320.829230%
B3859862.228557%
C3859902.332210%
D3859391.010625%

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 4989 3860 0 0 0.00% 0.00%
B 4989 3860 7 7 0.14% 0.18%
C 4989 3860 0 0 0.00% 0.00%
D 4989 3860 6 6 0.12% 0.16%

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 34 8397 83.36 470 461 95.2
A 13 254 6360 61.96 470 461 95.2
A 3 137 3952 36.67 470 461 95.2
B 15 33 133107 1509.0 470 459 87.9
B 0 228 14668 161.64 470 459 87.9
B 0 190 12070 132.09 470 459 87.9
C 14 238 74663 694.21 458 460 106.9
C 0 10 13930 126.02 458 460 106.9
C 9 54 11027 98.86 458 460 106.9
D 12 227 133738 1186.67 462 450 112.3
D 1 52 46939 413.89 462 450 112.3
D 2 234 16920 146.63 462 450 112.3

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