ASTROSAT CZTI

Data Quality Report

Orbit 10608

Creation date: 2024-06-27T16:01:25.456084
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/AS1T01_191T01_9000001536_10608cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10608cztM0_level2_quad_clean.evt
Size (bytes)426,856,32084,594,240
Size407.1 MB 80.7 MB
Events in quadrant A2,652,977563,850
Events in quadrant B4,455,427535,669
Events in quadrant C2,533,323559,770
Events in quadrant D2,917,180522,961

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113282
B0167761
C0111091
D0121471

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5413190.351007%
B541358110.733420%
C541340.073896%
D5413100.184740%

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 6738 5414 0 0 0.00% 0.00%
B 6738 5414 408 408 6.06% 7.54%
C 6738 5414 0 0 0.00% 0.00%
D 6738 5414 8 8 0.12% 0.15%

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 1 162 29117 206.6 671 661 137.7
A 13 251 13335 92.02 671 661 137.7
A 1 178 10204 69.28 671 661 137.7
B 4 239 1691303 13580.29 653 640 124.5
B 0 219 127960 1022.7 653 640 124.5
B 4 81 38104 300.93 653 640 124.5
C 14 67 5564 32.89 646 654 149.3
C 13 61 4845 28.08 646 654 149.3
C 8 128 3607 19.78 646 654 149.3
D 2 16 263947 1678.23 638 623 156.9
D 1 52 96558 611.42 638 623 156.9
D 13 104 37138 232.72 638 623 156.9

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