ASTROSAT CZTI

Data Quality Report

Orbit 10143

Creation date: 2024-06-27T15:55:31.737735
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_10143cztM0_level2.evt modeM0/AS1A03_116T01_9000001460_10143cztM0_level2_quad_clean.evt
Size (bytes)624,795,84085,757,760
Size595.9 MB 81.8 MB
Events in quadrant A3,240,035556,437
Events in quadrant B3,410,370561,885
Events in quadrant C3,160,970556,075
Events in quadrant D8,658,089456,277

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138713
B0142762
C0138042
D0302212

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6677600.898607%
B6677851.273027%
C6677660.988468%
D6677180527.033099%

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 8807 6678 0 0 0.00% 0.00%
B 8807 6678 9 9 0.10% 0.13%
C 8807 6678 0 0 0.00% 0.00%
D 8807 6677 1620 1620 18.39% 24.26%

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 8 15 14144 78.58 835 818 169.6
A 15 174 7697 40.56 835 818 169.6
A 0 226 7629 40.16 835 818 169.6
B 4 239 51924 320.03 834 815 159.7
B 0 214 46222 284.33 834 815 159.7
B 4 81 28068 170.65 834 815 159.7
C 13 61 6107 28.22 810 815 187.5
C 3 202 2049 6.58 810 815 187.5
C 14 67 1953 6.07 810 815 187.5
D 1 52 4147620 22567.41 739 721 183.8
D 4 95 1167435 6349.25 739 721 183.8
D 8 195 327688 1779.35 739 721 183.8

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