ASTROSAT CZTI

Data Quality Report

Orbit 19626

Creation date: 2024-06-27T18:04:54.764065
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/AS1T03_116T01_9000002916_19626cztM0_level2.evt modeM0/AS1T03_116T01_9000002916_19626cztM0_level2_quad_clean.evt
Size (bytes)455,613,12093,631,680
Size434.5 MB 89.3 MB
Events in quadrant A3,098,725613,414
Events in quadrant B3,253,701630,258
Events in quadrant C3,215,622590,232
Events in quadrant D3,811,951571,706

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129312
B0134272
C0132822
D0152732

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6163250.405647%
B6163610.989778%
C6163530.859971%
D61631211.963330%

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 7483 6164 0 0 0.00% 0.00%
B 7483 6164 13 13 0.17% 0.21%
C 7483 6164 0 0 0.00% 0.00%
D 7483 6164 70 70 0.94% 1.14%

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 11 47 7082 39.32 802 789 160.1
A 0 226 6917 38.29 802 789 160.1
A 13 254 6469 35.49 802 789 160.1
B 3 64 35000 225.66 802 785 151.6
B 7 220 33447 215.42 802 785 151.6
B 0 230 18940 119.74 802 785 151.6
C 14 238 121275 673.73 765 772 178.9
C 3 233 100477 557.45 765 772 178.9
C 8 208 8794 44.85 765 772 178.9
D 1 52 543224 2901.54 767 747 187.0
D 12 218 280333 1495.42 767 747 187.0
D 7 238 96497 512.14 767 747 187.0

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