ASTROSAT CZTI

Data Quality Report

Orbit 05104

Creation date: 2024-06-27T14:51:21.855525
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/AS1G05_105T01_9000000644_05104cztM0_level2.evt modeM0/AS1G05_105T01_9000000644_05104cztM0_level2_quad_clean.evt
Size (bytes)499,714,56085,844,160
Size476.6 MB 81.9 MB
Events in quadrant A3,328,046548,905
Events in quadrant B3,381,993553,700
Events in quadrant C2,890,771533,622
Events in quadrant D5,072,965491,064

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148643
B0148092
C0137222
D0198982

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6779650.958843%
B6779911.342381%
C6779120.177017%
D67796058.924620%

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 8554 6781 46 46 0.54% 0.68%
B 8554 6781 56 56 0.65% 0.83%
C 8554 6781 0 0 0.00% 0.00%
D 8554 6781 444 444 5.19% 6.55%

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 13 251 221006 1423.66 753 737 154.7
A 15 174 138071 887.63 753 737 154.7
A 10 229 36332 230.06 753 737 154.7
B 10 16 248893 1703.66 764 747 145.7
B 5 250 92200 627.88 764 747 145.7
B 4 80 43173 291.28 764 747 145.7
C 12 4 15272 84.77 735 738 171.5
C 13 61 5915 30.2 735 738 171.5
C 1 16 4421 21.48 735 738 171.5
D 12 22 1239361 7199.38 699 677 172.1
D 13 239 543064 3152.42 699 677 172.1
D 2 136 194832 1128.45 699 677 172.1

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