ASTROSAT CZTI

Data Quality Report

Orbit 34513

Creation date: 2022-02-15T11:07:34.129497
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/AS1A05_103T05_9000004930_34513cztM0_level2.evt modeM0/AS1A05_103T05_9000004930_34513cztM0_level2_quad_clean.evt
Size (bytes)495,722,88083,851,200
Size472.8 MB 80.0 MB
Events in quadrant A2,691,982551,873
Events in quadrant B3,378,339547,018
Events in quadrant C3,069,324547,110
Events in quadrant D5,492,631500,837

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116953
B0136352
C0123482
D0201522

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5611250.445553%
B56111272.263411%
C5611771.372304%
D561181014.435929%

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 7104 5612 15 15 0.21% 0.27%
B 7104 5612 81 81 1.14% 1.44%
C 7104 5612 53 53 0.75% 0.94%
D 7104 5612 692 692 9.74% 12.33%

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 10 83 42100 316.46 651 640 131.0
A 9 143 38501 288.99 651 640 131.0
A 3 15 33554 251.23 651 640 131.0
B 5 172 267758 2179.78 643 628 122.5
B 0 190 228732 1861.33 643 628 122.5
B 4 232 100655 816.22 643 628 122.5
C 15 214 238149 1597.97 633 635 148.6
C 0 10 207164 1389.5 633 635 148.6
C 14 67 102835 687.59 633 635 148.6
D 7 80 1103132 7273.7 579 566 151.6
D 13 249 641850 4230.59 579 566 151.6
D 8 195 451742 2976.44 579 566 151.6

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