ASTROSAT CZTI

Data Quality Report

Orbit 41103

Creation date: 2024-06-27T22:24:30.648992
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/AS1A12_044T19_9000005600_41103cztM0_level2.fits modeM0/AS1A12_044T19_9000005600_41103cztM0_level2_quad_clean.evt
Size (bytes)371,355,84093,536,640
Size354.2 MB 89.2 MB
Events in quadrant A3,104,452639,584
Events in quadrant B3,131,257645,562
Events in quadrant C3,243,295610,454
Events in quadrant D3,815,614531,440

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127633
B0132422
C0133112
D0155162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5800180.310345%
B58001232.120690%
C5800961.655172%
D58004648.000000%

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 7113 5801 3 3 0.04% 0.05%
B 7113 5801 87 87 1.22% 1.50%
C 7113 5801 88 88 1.24% 1.52%
D 7113 5801 382 382 5.37% 6.59%

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 555057 4114.17 647 634 134.8
A 2 79 32219 234.38 647 634 134.8
A 13 254 10459 72.91 647 634 134.8
B 0 186 234888 1871.79 638 621 125.2
B 0 245 207119 1649.91 638 621 125.2
B 15 85 95870 761.04 638 621 125.2
C 15 159 291011 1975.59 623 624 147.0
C 15 214 247282 1678.09 623 624 147.0
C 14 254 194931 1321.93 623 624 147.0
D 2 249 1194435 7896.98 602 582 151.2
D 13 249 136590 899.65 602 582 151.2
D 6 239 85631 562.57 602 582 151.2

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