ASTROSAT CZTI

Data Quality Report

Orbit 47103

Creation date: 2024-06-27T23:31:46.157837
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/AS1C09_003T01_9000006298_47103cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47103cztM0_level2_quad_clean.evt
Size (bytes)575,913,600122,045,760
Size549.2 MB 116.4 MB
Events in quadrant A7,753,449834,023
Events in quadrant B3,916,017843,922
Events in quadrant C3,509,256791,814
Events in quadrant D5,535,334683,305

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0286510
B0169210
C0162470
D0218910

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77971672.141849%
B7797690.884956%
C7798470.602719%
D77976868.798256%

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 7797 7797 33 33 0.42% 0.42%
B 7797 7797 10 10 0.13% 0.13%
C 7798 7798 31 31 0.40% 0.40%
D 7797 7797 662 662 8.49% 8.49%

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 4252912 23726.85 869 851 179.2
A 15 235 80968 447.06 869 851 179.2
A 14 248 16395 86.74 869 851 179.2
B 0 190 155026 908.45 862 837 169.7
B 5 32 83087 484.6 862 837 169.7
B 0 200 63918 371.66 862 837 169.7
C 0 207 105278 532.82 840 844 196.0
C 14 254 56398 283.44 840 844 196.0
C 12 2 37705 188.06 840 844 196.0
D 2 249 1858567 9248.13 802 775 200.9
D 13 171 190274 943.33 802 775 200.9
D 12 233 97985 483.91 802 775 200.9

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