ASTROSAT CZTI

Data Quality Report

Orbit 47005

Creation date: 2024-06-27T23:30:37.169759
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_47005cztM0_level2.fits modeM0/AS1C09_006T01_9000006294_47005cztM0_level2_quad_clean.evt
Size (bytes)1,804,783,680263,324,160
Size1.7 GB 251.1 MB
Events in quadrant A16,898,6951,862,606
Events in quadrant B25,542,1331,381,775
Events in quadrant C8,302,9191,871,332
Events in quadrant D14,657,3271,598,113

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03720
B03720
C03720
D03720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620893
B0885984
C0383353
D0563963

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A182484002.192021%
B18247565430.985915%
C182481320.723367%
D1824815658.576282%

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 19753 18251 15 15 0.08% 0.08%
B 19752 18250 4515 4515 22.86% 24.74%
C 19753 18251 54 54 0.27% 0.30%
D 19753 18251 1255 1255 6.35% 6.88%

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 8941175 21694.29 1993 1952 412.1
A 9 191 208096 500.28 1993 1952 412.1
A 13 254 29787 67.55 1993 1952 412.1
B 3 112 17665474 50563.22 1782 1721 349.3
B 4 171 517513 1476.47 1782 1721 349.3
B 0 198 102269 287.82 1782 1721 349.3
C 14 254 333067 716.61 1973 1982 462.0
C 3 233 210200 450.67 1973 1982 462.0
C 0 207 42704 88.14 1973 1982 462.0
D 1 52 4034938 8408.2 1900 1842 479.7
D 13 249 2242028 4670.34 1900 1842 479.7
D 12 3 441653 916.92 1900 1842 479.7

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