ASTROSAT CZTI

Data Quality Report

Orbit 10941

Creation date: 2024-06-27T16:05:59.515155
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/AS1C03_013T01_9000001586_10941cztM0_level2.evt modeM0/AS1C03_013T01_9000001586_10941cztM0_level2_quad_clean.evt
Size (bytes)519,920,64075,657,600
Size495.8 MB 72.2 MB
Events in quadrant A3,485,986478,082
Events in quadrant B4,369,411471,272
Events in quadrant C2,961,961472,907
Events in quadrant D4,517,398445,034

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139894
B0168621
C0124471
D0174351

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60621121.847575%
B60633375.558304%
C6063200.329870%
D60631632.688438%

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 7338 6064 56 56 0.76% 0.92%
B 7338 6064 204 204 2.78% 3.36%
C 7338 6064 0 0 0.00% 0.00%
D 7338 6064 129 129 1.76% 2.13%

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 8 5 377692 2366.4 790 776 159.3
A 8 15 18639 112.15 790 776 159.3
A 11 29 12474 73.44 790 776 159.3
B 4 239 1221851 8410.91 773 757 145.2
B 0 214 48678 330.08 773 757 145.2
B 3 189 33282 224.03 773 757 145.2
C 13 61 5616 27.9 759 762 174.0
C 8 222 2003 7.13 759 762 174.0
C 3 202 1988 7.04 759 762 174.0
D 1 52 1365601 7545.83 759 739 180.9
D 5 222 104826 575.46 759 739 180.9
D 5 97 36055 195.25 759 739 180.9

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