ASTROSAT CZTI

Data Quality Report

Orbit 07681

Creation date: 2024-06-27T15:22:39.745301
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/AS1G06_104T01_9000001060_07681cztM0_level2.evt modeM0/AS1G06_104T01_9000001060_07681cztM0_level2_quad_clean.evt
Size (bytes)760,495,68094,754,880
Size725.3 MB 90.4 MB
Events in quadrant A3,598,459603,019
Events in quadrant B3,768,905618,898
Events in quadrant C10,635,866546,966
Events in quadrant D4,504,290561,667

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157923
B0161482
C0368762
D0185452

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7741320.413383%
B7741610.788012%
C7741268734.711278%
D77411241.601860%

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 9686 7743 0 0 0.00% 0.00%
B 9686 7743 2 2 0.02% 0.03%
C 9686 7743 2282 2282 23.56% 29.47%
D 9686 7743 53 53 0.55% 0.68%

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 0 128 10942 53.33 927 905 188.2
A 13 248 10010 48.37 927 905 188.2
A 0 226 8715 41.49 927 905 188.2
B 0 219 42657 235.4 939 917 177.3
B 4 239 18997 101.96 939 917 177.3
B 0 214 17070 91.1 939 917 177.3
C 9 68 7421561 39019.63 818 820 190.2
C 12 4 8500 40.38 818 820 190.2
C 13 61 6234 28.47 818 820 190.2
D 2 152 714155 3211.89 903 876 222.1
D 2 136 156412 700.38 903 876 222.1
D 1 83 92917 414.46 903 876 222.1

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