ASTROSAT CZTI

Data Quality Report

Orbit 37798

Creation date: 2024-06-27T21:44:36.247676
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/AS1A10_103T06_9000005348_37798cztM0_level2.evt modeM0/AS1A10_103T06_9000005348_37798cztM0_level2_quad_clean.evt
Size (bytes)513,987,84078,370,560
Size490.2 MB 74.7 MB
Events in quadrant A3,141,638522,304
Events in quadrant B3,577,731515,078
Events in quadrant C2,815,587523,180
Events in quadrant D5,672,629441,537

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0390
B0390
C0390
D0400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125383
B0140282
C0115732
D0204482

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5294460.868908%
B52942444.608991%
C5294410.774462%
D529481815.451454%

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 7326 5295 35 35 0.48% 0.66%
B 7326 5295 208 208 2.84% 3.93%
C 7326 5295 37 37 0.51% 0.70%
D 7326 5295 855 855 11.67% 16.15%

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 347365 2792.33 617 607 124.2
A 15 222 280328 2252.5 617 607 124.2
A 9 143 69877 557.81 617 607 124.2
B 5 172 659865 5693.86 601 586 115.8
B 0 229 311209 2682.69 601 586 115.8
B 0 230 68478 586.35 601 586 115.8
C 15 214 237958 1717.37 591 595 138.2
C 0 207 136322 982.01 591 595 138.2
C 0 10 119413 859.67 591 595 138.2
D 13 249 2530046 18423.81 556 541 137.3
D 7 223 430685 3132.98 556 541 137.3
D 10 199 242595 1763.02 556 541 137.3

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