ASTROSAT CZTI

Data Quality Report

Orbit 43074

Creation date: 2024-06-27T22:47:40.931062
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/AS1C07_001T10_9000005844_43074cztM0_level2.fits modeM0/AS1C07_001T10_9000005844_43074cztM0_level2_quad_clean.evt
Size (bytes)372,637,44096,462,720
Size355.4 MB 92.0 MB
Events in quadrant A3,481,305645,625
Events in quadrant B3,281,945648,391
Events in quadrant C2,839,263631,129
Events in quadrant D3,722,791574,947

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141022
B0139092
C0123013
D0154632

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6017691.146751%
B60171462.426458%
C601640.066489%
D60162353.906250%

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 7300 6018 44 44 0.60% 0.73%
B 7300 6018 95 95 1.30% 1.58%
C 7299 6017 2 2 0.03% 0.03%
D 7299 6017 176 176 2.41% 2.93%

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 648006 4891.09 644 631 132.4
A 15 237 175273 1319.47 644 631 132.4
A 12 189 84165 631.12 644 631 132.4
B 0 229 638206 5154.54 636 617 123.7
B 5 255 62156 497.51 636 617 123.7
B 4 171 28129 222.42 636 617 123.7
C 15 214 272970 1829.36 631 634 148.9
C 14 254 73023 486.26 631 634 148.9
C 12 2 12296 78.34 631 634 148.9
D 2 249 437979 2842.58 625 607 153.9
D 13 249 306154 1985.82 625 607 153.9
D 1 52 284293 1843.74 625 607 153.9

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