ASTROSAT CZTI

Data Quality Report

Orbit 32719

Creation date: 2024-06-27T20:41:13.431305
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_123T04_9000004726_32719cztM0_level2.evt modeM0/AS1A10_123T04_9000004726_32719cztM0_level2_quad_clean.evt
Size (bytes)499,737,60061,410,240
Size476.6 MB 58.6 MB
Events in quadrant A3,277,763368,935
Events in quadrant B3,608,932365,007
Events in quadrant C3,037,363367,088
Events in quadrant D4,815,170350,430

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135063
B0144932
C0127762
D0185162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5843611.043984%
B58432103.594044%
C5843450.770152%
D58431833.131953%

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 7155 5844 37 37 0.52% 0.63%
B 7155 5843 118 118 1.65% 2.02%
C 7155 5844 41 41 0.57% 0.70%
D 7155 5844 146 146 2.04% 2.50%

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 15 249 587909 4315.75 680 667 136.1
A 15 237 32267 232.23 680 667 136.1
A 13 6 11546 79.95 680 667 136.1
B 4 251 559219 4328.33 678 663 129.0
B 0 219 91041 700.35 678 663 129.0
B 3 26 63260 485.07 678 663 129.0
C 0 10 137762 888.92 661 665 154.2
C 9 236 134848 870.03 661 665 154.2
C 3 233 92171 593.31 661 665 154.2
D 8 195 1044083 6615.58 654 639 157.7
D 2 250 630919 3996.06 654 639 157.7
D 7 80 141697 894.33 654 639 157.7

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