ASTROSAT CZTI

Data Quality Report

Orbit 29295

Creation date: 2024-06-27T20:02:28.447355
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/AS1A10_050T01_9000004212_29295cztM0_level2.evt modeM0/AS1A10_050T01_9000004212_29295cztM0_level2_quad_clean.evt
Size (bytes)915,410,88099,362,880
Size873.0 MB 94.8 MB
Events in quadrant A3,424,705704,024
Events in quadrant B3,503,156716,811
Events in quadrant C14,404,326451,747
Events in quadrant D5,930,678660,075

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141941
B0144601
C0474591
D0221991

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6806200.293858%
B6806380.558331%
C6807572984.163361%
D68074817.066255%

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 7986 6807 0 0 0.00% 0.00%
B 7986 6807 6 6 0.08% 0.09%
C 7987 6808 4219 4219 52.82% 61.97%
D 7987 6807 380 380 4.76% 5.58%

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 13 254 13700 72.69 887 871 176.5
A 3 137 7813 39.33 887 871 176.5
A 0 226 7427 37.14 887 871 176.5
B 10 245 28999 171.28 878 857 164.3
B 12 111 19220 111.76 878 857 164.3
B 11 111 17158 99.21 878 857 164.3
C 3 233 11672111 81949.08 614 620 142.4
C 14 238 179234 1254.1 614 620 142.4
C 14 254 132706 927.42 614 620 142.4
D 1 52 1934985 9514.76 854 834 203.3
D 12 233 364576 1789.37 854 834 203.3
D 8 195 102083 498.08 854 834 203.3

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