ASTROSAT CZTI

Data Quality Report

Orbit 10654

Creation date: 2024-06-27T16:02:03.503060
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/AS1T01_191T01_9000001536_10654cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10654cztM0_level2_quad_clean.evt
Size (bytes)472,187,52078,923,520
Size450.3 MB 75.3 MB
Events in quadrant A3,909,305470,125
Events in quadrant B4,146,033510,721
Events in quadrant C2,755,740518,774
Events in quadrant D3,093,061482,513

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154282
B0161481
C0120241
D0131381

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58334547.783302%
B58333526.034631%
C5833100.171438%
D5833500.857192%

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 7098 5834 398 398 5.61% 6.82%
B 7098 5834 180 180 2.54% 3.09%
C 7098 5834 0 0 0.00% 0.00%
D 7098 5834 32 32 0.45% 0.55%

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 15 239 1120055 8063.36 679 669 138.8
A 15 223 89204 637.75 679 669 138.8
A 15 174 44575 316.27 679 669 138.8
B 4 239 1328791 10008.85 707 693 132.7
B 0 214 39978 296.06 707 693 132.7
B 12 111 13481 96.37 707 693 132.7
C 4 175 23183 140.1 692 700 160.5
C 14 234 16144 96.24 692 700 160.5
C 4 254 13756 81.35 692 700 160.5
D 1 20 180905 1096.67 678 661 164.4
D 8 195 96649 584.02 678 661 164.4
D 1 52 86585 522.79 678 661 164.4

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