ASTROSAT CZTI

Data Quality Report

Orbit 10204

Creation date: 2024-06-27T15:56:18.328158
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/AS1A03_050T01_9000001468_10204cztM0_level2.evt modeM0/AS1A03_050T01_9000001468_10204cztM0_level2_quad_clean.evt
Size (bytes)461,257,920112,469,760
Size439.9 MB 107.3 MB
Events in quadrant A2,827,910764,963
Events in quadrant B3,093,320766,611
Events in quadrant C2,656,199765,096
Events in quadrant D5,005,745712,005

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119582
B0128681
C0116501
D0187871

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5686631.107985%
B5686741.301442%
C5686320.562786%
D56863566.260992%

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 7016 5687 6 6 0.09% 0.11%
B 7016 5687 14 14 0.20% 0.25%
C 7016 5687 0 0 0.00% 0.00%
D 7016 5687 262 262 3.73% 4.61%

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 102582 712.16 707 693 143.1
A 0 226 6748 42.32 707 693 143.1
A 12 194 6095 37.76 707 693 143.1
B 0 214 104150 796.94 700 685 129.8
B 11 51 89403 683.35 700 685 129.8
B 4 239 81398 621.69 700 685 129.8
C 14 67 9194 55.61 676 679 153.1
C 4 175 7132 42.14 676 679 153.1
C 13 61 5080 28.74 676 679 153.1
D 1 52 912890 5780.87 667 649 157.8
D 2 16 778114 4926.8 667 649 157.8
D 13 122 205045 1295.26 667 649 157.8

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