ASTROSAT CZTI

Data Quality Report

Orbit 33080

Creation date: 2024-06-27T20:44:45.457697
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/AS1A11_007T07_9000004758_33080cztM0_level2.evt modeM0/AS1A11_007T07_9000004758_33080cztM0_level2_quad_clean.evt
Size (bytes)599,748,48069,367,680
Size572.0 MB 66.2 MB
Events in quadrant A2,588,718456,516
Events in quadrant B3,738,010440,658
Events in quadrant C5,567,139425,195
Events in quadrant D5,880,900376,098

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115853
B0149442
C0204392
D0212782

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5741110.191604%
B57413285.713290%
C574183614.561923%
D574191815.990246%

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 7173 5742 0 0 0.00% 0.00%
B 7173 5742 221 221 3.08% 3.85%
C 7173 5742 663 663 9.24% 11.55%
D 7173 5742 729 729 10.16% 12.70%

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 15 174 18282 131.51 661 648 134.1
A 13 254 11882 83.78 661 648 134.1
A 13 6 6936 46.89 661 648 134.1
B 5 172 674843 5450.3 643 626 123.7
B 5 200 269586 2174.24 643 626 123.7
B 0 219 93374 749.76 643 626 123.7
C 8 111 2441842 17415.74 607 613 140.2
C 3 233 328549 2339.5 607 613 140.2
C 7 221 199886 1421.61 607 613 140.2
D 12 218 1683536 10743.81 589 575 156.6
D 8 195 876818 5593.82 589 575 156.6
D 2 250 296381 1888.38 589 575 156.6

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