ASTROSAT CZTI

Data Quality Report

Orbit 07120

Creation date: 2024-06-27T15:15:50.062087
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/AS1A02_090T01_9000000970_07120cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07120cztM0_level2_quad_clean.evt
Size (bytes)482,120,64079,441,920
Size459.8 MB 75.8 MB
Events in quadrant A3,197,859499,567
Events in quadrant B3,449,479512,131
Events in quadrant C3,334,370493,793
Events in quadrant D4,184,285452,819

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135223
B0142092
C0139552
D0165062

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6408200.312110%
B6408721.123596%
C6408560.873908%
D64082353.667291%

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 7698 6409 1 1 0.01% 0.02%
B 7698 6409 16 16 0.21% 0.25%
C 7698 6408 36 36 0.47% 0.56%
D 7698 6409 179 179 2.33% 2.79%

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 14 238 61846 373.88 803 790 163.3
A 8 15 37925 227.4 803 790 163.3
A 0 226 7721 42.44 803 790 163.3
B 3 220 140788 913.16 820 804 153.3
B 0 214 65105 419.45 820 804 153.3
B 4 81 27254 172.54 820 804 153.3
C 4 254 268380 1477.82 783 790 181.1
C 10 22 6933 33.93 783 790 181.1
C 13 61 6253 30.17 783 790 181.1
D 8 195 377871 1997.94 766 742 188.8
D 12 233 336282 1777.61 766 742 188.8
D 2 216 329985 1744.25 766 742 188.8

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