ASTROSAT CZTI

Data Quality Report

Orbit 48528

Creation date: 2024-09-21T12:20:47.204378
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_037T05_9000006434_48528cztM0_level2.fits modeM0/AS1A13_037T05_9000006434_48528cztM0_level2_quad_clean.evt
Size (bytes)154,667,52032,209,920
Size147.5 MB 30.7 MB
Events in quadrant A2,274,771213,960
Events in quadrant B1,241,265221,164
Events in quadrant C841,298206,851
Events in quadrant D1,202,466181,180

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09023441
B05299222
C04424218
D05586429

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0442
B0431
C0442
D0442

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2099361.715102%
B2105271.282660%
C210300.000000%
D2097844.005722%

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 2121 2103 24 24 1.13% 1.14%
B 2153 2113 23 23 1.07% 1.09%
C 2181 2108 0 0 0.00% 0.00%
D 2149 2098 81 81 3.77% 3.86%

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 1283600 27149.33 215 211 47.3
A 12 189 138614 2927.83 215 211 47.3
A 13 248 16664 348.05 215 211 47.3
B 12 16 191258 4376.93 213 206 43.6
B 0 197 59591 1360.49 213 206 43.6
B 0 186 58259 1329.97 213 206 43.6
C 3 233 6780 126.75 213 214 51.8
C 14 67 2927 52.37 213 214 51.8
C 13 61 1475 24.34 213 214 51.8
D 2 165 247934 4611.66 209 202 53.7
D 12 233 106772 1983.86 209 202 53.7
D 2 249 23719 437.78 209 202 53.7

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