ASTROSAT CZTI

Data Quality Report

Orbit 15582

Creation date: 2024-06-27T17:10:42.145508
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/AS1A04_037T02_9000002310_15582cztM0_level2.evt modeM0/AS1A04_037T02_9000002310_15582cztM0_level2_quad_clean.evt
Size (bytes)610,116,48096,868,800
Size581.9 MB 92.4 MB
Events in quadrant A3,778,467607,821
Events in quadrant B3,985,442614,882
Events in quadrant C3,946,557589,978
Events in quadrant D6,225,236565,153

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163883
B0168812
C0165932
D0240202

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7999640.800100%
B7999901.125141%
C79991051.312664%
D79995637.038380%

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 9245 8001 0 0 0.00% 0.00%
B 9245 8001 6 6 0.06% 0.07%
C 9245 8000 2 2 0.02% 0.03%
D 9245 8000 471 471 5.09% 5.89%

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 13 248 10485 47.66 977 955 199.9
A 0 226 8838 39.43 977 955 199.9
A 9 143 7792 34.2 977 955 199.9
B 0 189 44738 232.17 978 953 188.6
B 4 216 26306 134.43 978 953 188.6
B 0 197 22671 115.16 978 953 188.6
C 14 238 142041 643.98 938 943 219.1
C 3 233 73343 330.44 938 943 219.1
C 0 207 38055 169.38 938 943 219.1
D 12 110 1367018 6053.42 923 895 225.7
D 1 52 1223150 5415.93 923 895 225.7
D 2 234 39712 172.0 923 895 225.7

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