ASTROSAT CZTI

Data Quality Report

Orbit 46793

Creation date: 2024-06-27T23:27:42.873680
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_053T01_9000006266_46793cztM0_level2.fits modeM0/AS1A13_053T01_9000006266_46793cztM0_level2_quad_clean.evt
Size (bytes)457,885,440106,254,720
Size436.7 MB 101.3 MB
Events in quadrant A6,090,590711,577
Events in quadrant B3,229,059747,092
Events in quadrant C2,726,205706,104
Events in quadrant D4,430,351627,483

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220734
B0136161
C0124311
D0172631

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60962303.772966%
B6096841.377953%
C6096180.295276%
D60973385.543710%

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 7336 6098 57 57 0.78% 0.93%
B 7336 6096 16 16 0.22% 0.26%
C 7336 6096 0 0 0.00% 0.00%
D 7337 6098 313 313 4.27% 5.13%

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 3175102 22166.41 701 687 143.2
A 13 248 74366 514.48 701 687 143.2
A 9 191 51886 357.51 701 687 143.2
B 3 112 128568 944.61 703 683 135.4
B 4 171 103830 761.89 703 683 135.4
B 0 198 77829 569.83 703 683 135.4
C 3 233 31382 193.76 683 684 158.4
C 1 241 24238 148.67 683 684 158.4
C 1 3 5163 28.27 683 684 158.4
D 13 249 784780 4714.31 671 649 166.3
D 13 138 286343 1717.63 671 649 166.3
D 1 52 273607 1641.06 671 649 166.3

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