ASTROSAT CZTI

Data Quality Report

Orbit 34160

Creation date: 2024-06-27T20:57:14.955475
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/AS1A11_054T07_9000004878_34160cztM0_level2.evt modeM0/AS1A11_054T07_9000004878_34160cztM0_level2_quad_clean.evt
Size (bytes)442,912,32092,381,760
Size422.4 MB 88.1 MB
Events in quadrant A2,440,945616,470
Events in quadrant B2,795,802639,061
Events in quadrant C3,589,306612,883
Events in quadrant D4,246,780577,143

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104253
B0114022
C0138192
D0161812

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A502550.099502%
B5025611.213930%
C50253126.208955%
D5025671.333333%

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 6998 5026 2 2 0.03% 0.04%
B 6998 5026 39 39 0.56% 0.78%
C 6998 5026 274 274 3.92% 5.45%
D 6998 5026 45 45 0.64% 0.90%

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 15 169 40303 324.2 613 603 122.5
A 10 83 20708 164.18 613 603 122.5
A 13 6 10986 84.79 613 603 122.5
B 5 172 143326 1218.44 616 601 117.1
B 5 255 100884 856.11 616 601 117.1
B 4 232 46690 393.46 616 601 117.1
C 0 10 635869 4701.88 585 592 135.1
C 0 239 412679 3049.98 585 592 135.1
C 15 214 210809 1555.88 585 592 135.1
D 8 195 1557566 10608.53 594 578 146.8
D 1 52 112148 760.18 594 578 146.8
D 7 223 79807 539.83 594 578 146.8

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