ASTROSAT CZTI

Data Quality Report

Orbit 48166

Creation date: 2024-08-26T08:42:55.666024
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_004T05_9000006408_48166cztM0_level2.fits modeM0/AS1C09_004T05_9000006408_48166cztM0_level2_quad_clean.evt
Size (bytes)400,512,96077,019,840
Size382.0 MB 73.5 MB
Events in quadrant A6,404,763649,828
Events in quadrant B1,044,23040,378
Events in quadrant C2,626,700633,552
Events in quadrant D4,264,921576,299

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0239701
B064781
C0125451
D0169171

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61501883.056911%
B61506150100.000000%
C6150110.178862%
D61512453.983092%

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 6975 6151 18 18 0.26% 0.29%
B 6974 6138 0 0 0.00% 0.00%
C 6975 6151 3 3 0.04% 0.05%
D 6976 6152 198 198 2.84% 3.22%

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 3775749 27111.73 664 649 139.2
A 13 248 34902 246.0 664 649 139.2
A 13 254 12905 88.02 664 649 139.2
B 2 177 850637 80104.17 43 41 10.6
B 4 21 14181 1331.62 43 41 10.6
B 5 32 2063 190.42 43 41 10.6
C 12 2 39257 250.89 651 653 153.9
C 0 207 24177 152.89 651 653 153.9
C 14 254 17890 112.03 651 653 153.9
D 12 1 896519 5475.71 646 625 163.6
D 12 233 526291 3212.87 646 625 163.6
D 1 232 220792 1345.66 646 625 163.6

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