ASTROSAT CZTI

Data Quality Report

Orbit 45006

Creation date: 2024-06-27T23:08:57.000827
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/AS1A13_020T01_9000006040_45006cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45006cztM0_level2_quad_clean.evt
Size (bytes)490,026,24098,066,880
Size467.3 MB 93.5 MB
Events in quadrant A5,259,827649,049
Events in quadrant B3,152,472689,406
Events in quadrant C3,076,628668,874
Events in quadrant D6,166,886527,328

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0203641
B0136251
C0135531
D0225751

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62252483.983936%
B6226921.477674%
C6226951.525859%
D6225100316.112450%

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 7185 6226 117 117 1.63% 1.88%
B 7186 6227 29 29 0.40% 0.47%
C 7186 6227 47 47 0.65% 0.75%
D 7185 6226 794 794 11.05% 12.75%

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 10 83 2108933 14761.03 686 671 142.8
A 13 248 440226 3077.55 686 671 142.8
A 10 248 52224 360.95 686 671 142.8
B 5 255 237949 1735.46 690 670 136.7
B 4 171 47028 339.06 690 670 136.7
B 0 189 36197 259.84 690 670 136.7
C 14 254 302039 1852.58 690 696 162.7
C 15 208 50966 309.05 690 696 162.7
C 3 233 17405 102.72 690 696 162.7
D 12 233 1370604 8444.04 642 623 162.2
D 1 52 844037 5198.48 642 623 162.2
D 13 249 672557 4141.55 642 623 162.2

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