ASTROSAT CZTI

Data Quality Report

Orbit 44300

Creation date: 2024-06-27T23:01:48.372971
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/AS1A13_004T13_9000005988_44300cztM0_level2.fits modeM0/AS1A13_004T13_9000005988_44300cztM0_level2_quad_clean.evt
Size (bytes)498,571,200115,151,040
Size475.5 MB 109.8 MB
Events in quadrant A4,934,943798,549
Events in quadrant B4,046,248802,087
Events in quadrant C3,246,772774,360
Events in quadrant D5,719,605655,373

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0201232
B0164122
C0140112
D0214142

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65421872.858453%
B65422303.515744%
C6542761.161724%
D654178211.955359%

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 7742 6543 11 11 0.14% 0.17%
B 7742 6543 87 87 1.12% 1.33%
C 7742 6543 25 25 0.32% 0.38%
D 7741 6542 643 643 8.31% 9.83%

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 1735386 10567.72 794 777 164.1
A 15 223 46422 278.08 794 777 164.1
A 13 248 36545 217.91 794 777 164.1
B 5 255 215566 1438.72 775 751 149.3
B 0 200 181563 1210.98 775 751 149.3
B 5 172 181051 1207.55 775 751 149.3
C 14 254 187155 1043.97 766 771 178.5
C 3 233 49691 274.01 766 771 178.5
C 15 208 12347 64.84 766 771 178.5
D 13 249 954194 5214.77 732 712 182.8
D 1 20 825849 4512.83 732 712 182.8
D 13 171 235541 1284.32 732 712 182.8

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