ASTROSAT CZTI

Data Quality Report

Orbit 10068

Creation date: 2024-06-27T15:54:43.395108
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/AS1G07_039T01_9000001444_10068cztM0_level2.evt modeM0/AS1G07_039T01_9000001444_10068cztM0_level2_quad_clean.evt
Size (bytes)331,269,12058,818,240
Size315.9 MB 56.1 MB
Events in quadrant A2,348,988363,743
Events in quadrant B2,390,625367,760
Events in quadrant C2,260,492368,430
Events in quadrant D2,692,590332,881

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139553757
B0140253823
C0138643768
D0159154982

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135
B0132
C0134
D0134

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013846
B013933
C014032
D014036

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4990480.961924%
B4973541.085864%
C4973400.804343%
D4822651.347988%

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 7714 6043 0 0 0.00% 0.00%
B 7715 6041 1 1 0.01% 0.02%
C 7715 6008 0 0 0.00% 0.00%
D 7715 5918 23 23 0.30% 0.39%

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 8 15 25652 206.16 592 580 121.6
A 0 8 17527 139.35 592 580 121.6
A 8 5 15839 125.47 592 580 121.6
B 0 214 46461 400.0 593 580 114.7
B 0 219 18441 155.72 593 580 114.7
B 12 111 12538 104.25 593 580 114.7
C 14 234 6871 46.93 575 577 134.1
C 14 67 6053 40.83 575 577 134.1
C 8 222 4375 28.32 575 577 134.1
D 8 195 229335 1667.42 552 537 137.2
D 2 152 83279 603.0 552 537 137.2
D 10 199 78083 565.13 552 537 137.2

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