ASTROSAT CZTI

Data Quality Report

Orbit 10647

Creation date: 2024-06-27T16:01:57.520587
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_10647cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10647cztM0_level2_quad_clean.evt
Size (bytes)479,485,44086,132,160
Size457.3 MB 82.1 MB
Events in quadrant A2,800,463567,102
Events in quadrant B4,390,364544,268
Events in quadrant C3,537,144559,682
Events in quadrant D3,398,648530,856

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121252
B0168121
C0144211
D0137721

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5813450.774127%
B58134958.515397%
C58132604.472734%
D58131462.511612%

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 6673 5814 4 4 0.06% 0.07%
B 6673 5814 275 275 4.12% 4.73%
C 6673 5813 203 203 3.04% 3.49%
D 6673 5814 107 107 1.60% 1.84%

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 15 174 59017 401.61 698 685 145.2
A 1 162 22760 151.99 698 685 145.2
A 13 251 8534 54.04 698 685 145.2
B 4 239 1620431 12253.08 676 663 132.2
B 0 214 41265 307.14 676 663 132.2
B 0 168 21990 161.33 676 663 132.2
C 4 254 940061 6131.05 654 662 153.2
C 14 234 32671 208.91 654 662 153.2
C 9 54 11137 68.37 654 662 153.2
D 10 199 193608 1186.93 664 647 162.6
D 2 16 127522 780.43 664 647 162.6
D 7 71 117903 721.26 664 647 162.6

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