ASTROSAT CZTI

Data Quality Report

Orbit 47053

Creation date: 2024-06-27T23:31:10.488241
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/AS1C09_005T01_9000006296_47053cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47053cztM0_level2_quad_clean.evt
Size (bytes)429,284,16097,067,520
Size409.4 MB 92.6 MB
Events in quadrant A5,443,358641,402
Events in quadrant B3,462,738662,888
Events in quadrant C2,646,504649,882
Events in quadrant D3,893,308584,481

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01182
B01180
C01180
D01182

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020287474
B014201251
C012228237
D015799288

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57181492.605806%
B57401372.386760%
C5728380.663408%
D57302033.542757%

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 6961 5736 12 12 0.17% 0.21%
B 6954 5771 68 68 0.98% 1.18%
C 6964 5755 10 10 0.14% 0.17%
D 6963 5756 149 149 2.14% 2.59%

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 2893142 21745.54 646 633 133.0
A 9 191 30817 226.92 646 633 133.0
A 0 243 10837 76.71 646 633 133.0
B 3 112 511286 4169.66 640 621 122.5
B 5 172 237687 1935.68 640 621 122.5
B 4 171 129373 1051.28 640 621 122.5
C 14 254 101210 670.88 644 648 149.9
C 14 220 23786 154.36 644 648 149.9
C 12 250 6865 41.48 644 648 149.9
D 1 52 1017427 6336.29 642 623 160.5
D 13 249 212977 1323.3 642 623 160.5
D 14 34 81206 502.16 642 623 160.5

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