ASTROSAT CZTI

Data Quality Report

Orbit 23106

Creation date: 2024-06-27T18:50:00.561806
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/AS1A07_138T05_9000003410_23106cztM0_level2.evt modeM0/AS1A07_138T05_9000003410_23106cztM0_level2_quad_clean.evt
Size (bytes)663,589,440109,454,400
Size632.8 MB 104.4 MB
Events in quadrant A5,909,704667,012
Events in quadrant B3,939,427724,778
Events in quadrant C3,861,280698,607
Events in quadrant D5,850,918674,099

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228481
B0170431
C0167381
D0231391

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A791782510.420614%
B79162002.526529%
C79162032.564426%
D79162633.322385%

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 7937 7918 536 536 6.75% 6.77%
B 7936 7917 2 2 0.03% 0.03%
C 7936 7917 10 10 0.13% 0.13%
D 7936 7917 91 91 1.15% 1.15%

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 6 16 2300780 12103.9 936 915 190.0
A 13 254 11643 56.46 936 915 190.0
A 3 137 8393 39.36 936 915 190.0
B 0 190 65949 344.26 967 941 188.8
B 12 111 23522 119.58 967 941 188.8
B 4 216 21306 107.85 967 941 188.8
C 14 238 145257 651.71 931 936 221.5
C 0 207 34409 151.15 931 936 221.5
C 2 16 33461 146.87 931 936 221.5
D 7 238 1093968 4782.69 934 906 228.5
D 13 153 498156 2175.71 934 906 228.5
D 12 227 441938 1929.73 934 906 228.5

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