ASTROSAT CZTI

Data Quality Report

Orbit 22917

Creation date: 2024-06-27T18:47:28.962502
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/AS1A07_047T08_9000003384_22917cztM0_level2.evt modeM0/AS1A07_047T08_9000003384_22917cztM0_level2_quad_clean.evt
Size (bytes)115,784,64028,952,640
Size110.4 MB 27.6 MB
Events in quadrant A728,366193,210
Events in quadrant B749,179198,344
Events in quadrant C721,683189,844
Events in quadrant D1,199,152180,379

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031280
B031780
C031190
D045560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A155340.257566%
B155340.257566%
C155360.386349%
D1553795.086929%

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 1553 1553 0 0 0.00% 0.00%
B 1553 1553 1 1 0.06% 0.06%
C 1553 1553 0 0 0.00% 0.00%
D 1553 1553 70 70 4.51% 4.51%

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 13 252 5666 137.46 187 182 39.9
A 13 254 2718 63.57 187 182 39.9
A 0 226 1721 38.58 187 182 39.9
B 3 64 15763 419.18 183 178 37.2
B 0 189 4350 112.21 183 178 37.2
B 12 111 4172 107.42 183 178 37.2
C 14 238 28012 651.16 177 178 42.7
C 13 61 1182 23.49 177 178 42.7
C 10 22 760 13.62 177 178 42.7
D 13 172 266606 5807.83 181 174 45.9
D 1 52 75691 1646.15 181 174 45.9
D 12 233 64049 1392.37 181 174 45.9

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