ASTROSAT CZTI

Data Quality Report

Orbit 00167

Creation date: 2024-06-27T13:57:19.198142
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/AS1P01_120T01_9000000006_00167cztM0_level2.evt modeM0/AS1P01_120T01_9000000006_00167cztM0_level2_quad_clean.evt
Size (bytes)802,581,12036,158,400
Size765.4 MB 34.5 MB
Events in quadrant A6,125,791186,898
Events in quadrant B6,226,097192,313
Events in quadrant C5,640,534189,489
Events in quadrant D5,989,591182,936

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01046
B01037
C01046
D01068

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136
B0125
C0127
D0137

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230981461
B0234111456
C0215811349
D0226451403

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A487950.102480%
B4884150.307125%
C488200.000000%
D4882791.618189%

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 6921 4889 150 150 2.17% 3.07%
B 6921 4896 161 161 2.33% 3.29%
C 6921 4893 42 42 0.61% 0.86%
D 6921 4895 193 193 2.79% 3.94%

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 14 10 111148 315.65 1543 1529 347.3
A 0 86 11334 28.23 1543 1529 347.3
A 13 239 8678 20.59 1543 1529 347.3
B 10 199 203573 550.03 1531 1537 367.3
B 5 216 68130 181.3 1531 1537 367.3
B 14 50 17494 43.44 1531 1537 367.3
C 8 31 108153 266.63 1399 1447 400.2
C 0 218 10495 22.61 1399 1447 400.2
C 10 17 7327 14.69 1399 1447 400.2
D 13 21 209644 487.4 1396 1444 427.2
D 10 229 161528 374.76 1396 1444 427.2
D 13 223 64960 148.69 1396 1444 427.2

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