ASTROSAT CZTI

Data Quality Report

Orbit 10141

Creation date: 2024-06-27T15:55:30.926043
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_116T01_9000001460_10141cztM0_level2.evt modeM0/AS1A03_116T01_9000001460_10141cztM0_level2_quad_clean.evt
Size (bytes)592,151,04081,843,840
Size564.7 MB 78.1 MB
Events in quadrant A3,394,148507,102
Events in quadrant B3,568,404513,626
Events in quadrant C3,308,968510,246
Events in quadrant D7,174,279446,339

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147893
B0150782
C0147182
D0261882

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7190751.043115%
B7190941.307371%
C7190801.112656%
D7190113215.744089%

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 9025 7190 0 0 0.00% 0.00%
B 9025 7190 4 4 0.04% 0.06%
C 9025 7190 0 0 0.00% 0.00%
D 9024 7189 843 843 9.34% 11.73%

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 15 174 23616 127.76 871 853 178.2
A 3 1 15592 82.72 871 853 178.2
A 0 226 7861 39.33 871 853 178.2
B 0 214 43695 255.17 874 853 167.9
B 4 239 43451 253.72 874 853 167.9
B 4 81 43077 251.49 874 853 167.9
C 13 61 6205 27.09 847 851 197.6
C 14 67 3615 13.99 847 851 197.6
C 14 225 2154 6.59 847 851 197.6
D 4 95 2374497 11719.86 785 767 202.5
D 1 52 847050 4178.37 785 767 202.5
D 8 195 384536 1894.79 785 767 202.5

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