ASTROSAT CZTI

Data Quality Report

Orbit 23006

Creation date: 2024-06-27T18:48:37.926783
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/AS1A08_004T03_9000003400_23006cztM0_level2.evt modeM0/AS1A08_004T03_9000003400_23006cztM0_level2_quad_clean.evt
Size (bytes)504,599,04099,564,480
Size481.2 MB 95.0 MB
Events in quadrant A3,327,746643,882
Events in quadrant B3,453,484652,348
Events in quadrant C3,393,654622,886
Events in quadrant D4,624,643601,661

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145501
B0147381
C0146481
D0183011

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70911141.607672%
B70921321.861252%
C70921411.988156%
D70922653.736605%

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 7431 7092 0 0 0.00% 0.00%
B 7432 7093 2 2 0.03% 0.03%
C 7432 7093 6 6 0.08% 0.08%
D 7432 7093 157 157 2.11% 2.21%

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 13 254 9269 48.34 861 843 174.3
A 3 137 7813 39.99 861 843 174.3
A 0 226 7399 37.61 861 843 174.3
B 0 189 43358 256.6 853 831 165.7
B 0 190 40468 239.16 853 831 165.7
B 12 111 20691 119.83 853 831 165.7
C 14 238 130624 670.79 821 826 193.5
C 10 223 15497 75.82 821 826 193.5
C 10 22 14097 68.58 821 826 193.5
D 12 227 672282 3329.07 829 803 201.7
D 1 52 472991 2341.02 829 803 201.7
D 13 153 128972 635.44 829 803 201.7

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