ASTROSAT CZTI

Data Quality Report

Orbit 20363

Creation date: 2024-06-27T18:14:26.123666
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/AS1A05_205T01_9000003012_20363cztM0_level2.evt modeM0/AS1A05_205T01_9000003012_20363cztM0_level2_quad_clean.evt
Size (bytes)305,928,00041,296,320
Size291.8 MB 39.4 MB
Events in quadrant A2,563,177252,856
Events in quadrant B1,904,644263,329
Events in quadrant C1,815,874248,217
Events in quadrant D2,739,465234,470

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102271
B077612
C074741
D0105101

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A35412426.834228%
B3540330.932203%
C3540310.875706%
D35402817.937853%

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 4741 3542 0 0 0.00% 0.00%
B 4740 3541 6 6 0.13% 0.17%
C 4740 3541 0 0 0.00% 0.00%
D 4740 3541 215 215 4.54% 6.07%

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 14 111 793395 8496.95 458 448 93.3
A 13 254 4063 38.74 458 448 93.3
A 0 226 3908 37.08 458 448 93.3
B 0 190 17842 192.36 467 455 90.4
B 0 197 17625 189.96 467 455 90.4
B 4 142 16075 172.81 467 455 90.4
C 14 238 70628 667.14 447 449 105.2
C 13 61 3170 25.87 447 449 105.2
C 3 233 1412 9.15 447 449 105.2
D 1 52 646867 6035.93 435 421 107.1
D 11 176 429330 4004.76 435 421 107.1
D 2 120 16012 145.57 435 421 107.1

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