ASTROSAT CZTI

Data Quality Report

Orbit 46232

Creation date: 2024-06-27T23:20:37.022777
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_065T07_9000006188_46232cztM0_level2.fits modeM0/AS1A13_065T07_9000006188_46232cztM0_level2_quad_clean.evt
Size (bytes)581,126,400123,808,320
Size554.2 MB 118.1 MB
Events in quadrant A6,861,576814,203
Events in quadrant B4,500,713847,044
Events in quadrant C3,815,101823,206
Events in quadrant D5,730,707722,456

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0253223
B0186253
C0171313
D0225593

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77813194.099730%
B77812152.763141%
C7782831.066564%
D77825036.463634%

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 7826 7782 12 12 0.15% 0.15%
B 7826 7782 6 6 0.08% 0.08%
C 7827 7784 50 50 0.64% 0.64%
D 7827 7784 386 386 4.93% 4.96%

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 3244968 17406.21 891 870 186.4
A 0 247 151334 807.31 891 870 186.4
A 0 226 15079 76.24 891 870 186.4
B 3 112 793771 4382.33 895 861 180.9
B 5 63 108855 596.87 895 861 180.9
B 12 111 23555 125.42 895 861 180.9
C 12 2 314237 1496.39 880 882 209.4
C 14 254 36582 170.48 880 882 209.4
C 1 3 21765 99.72 880 882 209.4
D 1 52 2122825 9661.46 862 834 219.6
D 2 249 112290 507.46 862 834 219.6
D 13 249 64665 290.62 862 834 219.6

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