ASTROSAT CZTI

Data Quality Report

Orbit 30095

Creation date: 2024-06-27T20:10:43.741052
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/AS1A10_050T05_9000004330_30095cztM0_level2.evt modeM0/AS1A10_050T05_9000004330_30095cztM0_level2_quad_clean.evt
Size (bytes)579,032,64099,567,360
Size552.2 MB 95.0 MB
Events in quadrant A3,567,545650,580
Events in quadrant B6,338,180645,850
Events in quadrant C3,519,510623,689
Events in quadrant D3,656,645627,532

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145191
B0233111
C0143321
D0148411

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67071161.729536%
B67084386.529517%
C67081902.832439%
D6708931.386404%

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 7802 6708 6 6 0.08% 0.09%
B 7803 6709 203 203 2.60% 3.03%
C 7803 6709 0 0 0.00% 0.00%
D 7803 6709 19 19 0.24% 0.28%

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 0 13 150123 849.42 883 867 175.7
A 13 254 12481 66.1 883 867 175.7
A 8 192 11020 57.78 883 867 175.7
B 6 159 1917778 11670.72 856 835 164.3
B 0 229 917042 5578.04 856 835 164.3
B 0 190 86664 522.54 856 835 164.3
C 14 238 157786 798.5 842 851 196.5
C 14 254 34222 169.79 842 851 196.5
C 3 233 29275 144.62 842 851 196.5
D 8 195 163119 785.3 862 843 206.6
D 7 238 46375 220.34 862 843 206.6
D 13 138 34384 162.31 862 843 206.6

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