ASTROSAT CZTI

Data Quality Report

Orbit 28051

Creation date: 2024-06-27T19:47:29.825571
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_045T03_9000004052_28051cztM0_level2.evt modeM0/AS1A10_045T03_9000004052_28051cztM0_level2_quad_clean.evt
Size (bytes)466,499,52094,057,920
Size444.9 MB 89.7 MB
Events in quadrant A3,188,622630,675
Events in quadrant B2,975,098636,199
Events in quadrant C3,180,867595,064
Events in quadrant D4,386,480577,813

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128390
B0122540
C0129700
D0169780

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5853300.512558%
B5853360.615069%
C5854641.093270%
D58541372.340280%

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 7133 5853 0 0 0.00% 0.00%
B 7133 5853 2 2 0.03% 0.03%
C 7134 5855 2 2 0.03% 0.03%
D 7134 5855 132 132 1.85% 2.25%

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 0 13 230284 1502.44 766 754 152.8
A 13 254 9392 56.54 766 754 152.8
A 3 137 6722 39.06 766 754 152.8
B 12 111 16535 114.15 748 732 138.4
B 11 111 14819 101.76 748 732 138.4
B 14 111 14152 96.94 748 732 138.4
C 3 233 202707 1223.28 716 721 165.1
C 14 238 121314 730.34 716 721 165.1
C 15 208 66776 400.05 716 721 165.1
D 8 195 1030218 6102.92 722 704 168.7
D 2 250 367065 2171.77 722 704 168.7
D 1 52 162766 960.7 722 704 168.7

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