ASTROSAT CZTI

Data Quality Report

Orbit 47015

Creation date: 2024-06-27T23:30:45.359556
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_006T01_9000006294_47015cztM0_level2.fits modeM0/AS1C09_006T01_9000006294_47015cztM0_level2_quad_clean.evt
Size (bytes)239,411,52030,271,680
Size228.3 MB 28.9 MB
Events in quadrant A2,060,001235,422
Events in quadrant B4,247,67785,840
Events in quadrant C1,052,690228,908
Events in quadrant D1,328,936207,850

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A077740
B0141540
C047680
D055270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2197100.455166%
B2197146566.681839%
C2198180.818926%
D2198773.503185%

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 2197 2197 3 3 0.14% 0.14%
B 2197 2197 1390 1390 63.27% 63.27%
C 2198 2198 16 16 0.73% 0.73%
D 2198 2198 67 67 3.05% 3.05%

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 1122544 22656.43 229 224 49.5
A 13 248 26365 527.71 229 224 49.5
A 9 191 10455 206.53 229 224 49.5
B 3 112 3495070 102681.52 161 156 34.0
B 0 200 50855 1489.55 161 156 34.0
B 4 171 33575 981.86 161 156 34.0
C 1 3 91980 1635.51 230 231 56.1
C 14 254 58772 1043.54 230 231 56.1
C 8 222 3593 59.93 230 231 56.1
D 13 249 142878 2427.36 228 221 58.8
D 1 52 102233 1735.77 228 221 58.8
D 12 233 51264 868.51 228 221 58.8

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