ASTROSAT CZTI

Data Quality Report

Orbit 03103

Creation date: 2024-06-27T14:24:41.087687
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/AS1G05_237T03_9000000426_03103cztM0_level2.evt modeM0/AS1G05_237T03_9000000426_03103cztM0_level2_quad_clean.evt
Size (bytes)590,503,68081,809,280
Size563.1 MB 78.0 MB
Events in quadrant A4,014,285483,271
Events in quadrant B4,994,430476,141
Events in quadrant C4,121,190480,072
Events in quadrant D4,195,359466,092

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174102
B0203881
C0178191
D0183611

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82282042.479339%
B82282973.609626%
C82282062.503646%
D82281852.248420%

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 8503 8229 12 12 0.14% 0.15%
B 8503 8229 58 58 0.68% 0.70%
C 8503 8229 19 19 0.22% 0.23%
D 8503 8229 25 25 0.29% 0.30%

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 15 99285 479.27 993 968 205.1
A 12 247 61018 292.73 993 968 205.1
A 0 226 10995 48.88 993 968 205.1
B 1 223 342995 1745.49 999 976 195.9
B 15 204 305174 1552.47 999 976 195.9
B 14 167 175416 890.25 999 976 195.9
C 14 223 148026 658.23 959 962 223.4
C 6 80 43826 191.85 959 962 223.4
C 5 250 41072 179.52 959 962 223.4
D 13 114 204811 778.0 954 929 262.1
D 2 136 95437 360.64 954 929 262.1
D 13 29 71226 268.25 954 929 262.1

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