ASTROSAT CZTI

Data Quality Report

Orbit 07090

Creation date: 2024-06-27T15:15:26.787844
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/AS1A02_090T01_9000000970_07090cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07090cztM0_level2_quad_clean.evt
Size (bytes)374,523,84072,581,760
Size357.2 MB 69.2 MB
Events in quadrant A2,704,464454,389
Events in quadrant B2,948,087462,533
Events in quadrant C2,716,167452,237
Events in quadrant D2,583,688428,118

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117182
B0124261
C0117901
D0116961

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A573750.087154%
B5737380.662367%
C5737150.261461%
D573770.122015%

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 6967 5738 0 0 0.00% 0.00%
B 6967 5738 15 15 0.22% 0.26%
C 6967 5738 9 9 0.13% 0.16%
D 6967 5738 4 4 0.06% 0.07%

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 0 226 6604 41.34 700 688 143.1
A 12 194 6383 39.8 700 688 143.1
A 8 15 4477 26.48 700 688 143.1
B 0 219 71320 527.27 710 694 133.9
B 0 214 63645 469.97 710 694 133.9
B 4 81 35190 257.54 710 694 133.9
C 10 22 34786 215.29 684 691 158.4
C 14 67 7883 45.41 684 691 158.4
C 1 3 6612 37.38 684 691 158.4
D 2 14 27811 161.86 677 656 167.8
D 5 184 10830 60.64 677 656 167.8
D 8 195 7833 42.78 677 656 167.8

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