ASTROSAT CZTI

Data Quality Report

Orbit 09373

Creation date: 2024-06-27T15:45:12.989667
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/AS1A03_057T01_9000001330_09373cztM0_level2.evt modeM0/AS1A03_057T01_9000001330_09373cztM0_level2_quad_clean.evt
Size (bytes)185,189,76030,283,200
Size176.6 MB 28.9 MB
Events in quadrant A1,620,037184,364
Events in quadrant B1,270,017188,091
Events in quadrant C1,212,517184,604
Events in quadrant D1,334,918180,791

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064495
B052381
C051418
D054953

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2491803.211562%
B2492532.126806%
C2489351.406187%
D2491391.565636%

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 3337 2493 9 9 0.27% 0.36%
B 3337 2493 1 1 0.03% 0.04%
C 3337 2493 0 0 0.00% 0.00%
D 3337 2493 2 2 0.06% 0.08%

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 8 5 303063 4660.61 313 306 65.0
A 13 251 82925 1271.83 313 306 65.0
A 5 16 18628 282.05 313 306 65.0
B 0 214 13875 219.53 316 306 61.8
B 4 173 12796 202.07 316 306 61.8
B 0 187 9839 154.23 316 306 61.8
C 13 61 2330 27.66 310 311 73.0
C 8 222 1184 11.96 310 311 73.0
C 14 234 969 9.02 310 311 73.0
D 1 52 44904 578.81 307 299 77.1
D 8 195 38949 501.54 307 299 77.1
D 7 71 32598 419.13 307 299 77.1

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