ASTROSAT CZTI

Data Quality Report

Orbit 05922

Creation date: 2024-06-27T15:00:52.412776
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_174T01_9000000766_05922cztM0_level2.evt modeM0/AS1A02_174T01_9000000766_05922cztM0_level2_quad_clean.evt
Size (bytes)555,716,16069,482,880
Size530.0 MB 66.3 MB
Events in quadrant A3,595,036405,694
Events in quadrant B4,089,564400,198
Events in quadrant C3,384,831405,173
Events in quadrant D5,257,544376,636

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158283
B0170422
C0153572
D0209032

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74051962.646860%
B74053164.267387%
C7405791.066847%
D74053314.469953%

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 9435 7407 48 48 0.51% 0.65%
B 9435 7407 106 106 1.12% 1.43%
C 9435 7407 0 0 0.00% 0.00%
D 9435 7407 156 156 1.65% 2.11%

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 15 236 155659 849.94 883 860 182.1
A 15 234 26926 143.12 883 860 182.1
A 13 251 11005 55.7 883 860 182.1
B 15 255 458207 2653.99 888 865 172.3
B 0 214 64657 370.19 888 865 172.3
B 0 219 31263 176.4 888 865 172.3
C 13 61 6995 30.24 865 870 202.5
C 9 68 4674 18.78 865 870 202.5
C 8 79 2375 7.43 865 870 202.5
D 1 20 665108 3176.12 845 819 209.2
D 2 152 471107 2248.55 845 819 209.2
D 2 63 464918 2218.96 845 819 209.2

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