ASTROSAT CZTI

Data Quality Report

Orbit 43243

Creation date: 2024-06-27T22:49:42.409965
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/AS1A06_006T01_9000005860_43243cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43243cztM0_level2_quad_clean.evt
Size (bytes)354,283,20082,287,360
Size337.9 MB 78.5 MB
Events in quadrant A3,123,441562,462
Events in quadrant B2,318,141596,387
Events in quadrant C2,488,495573,683
Events in quadrant D4,800,103413,332

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122182
B0101382
C0101792
D0175632

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49271272.577633%
B4927270.548001%
C492760.121778%
D4926116323.609419%

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 7078 4928 89 89 1.26% 1.81%
B 7078 4928 19 19 0.27% 0.39%
C 7078 4928 2 2 0.03% 0.04%
D 7077 4927 831 831 11.74% 16.87%

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 10 83 544611 4765.29 556 545 114.2
A 15 237 349673 3057.89 556 545 114.2
A 12 189 73886 642.37 556 545 114.2
B 5 255 98949 914.06 558 543 107.7
B 0 189 30063 274.2 558 543 107.7
B 12 111 13119 116.81 558 543 107.7
C 15 214 226385 1733.89 557 560 130.2
C 7 220 32114 242.27 557 560 130.2
C 14 254 30565 230.38 557 560 130.2
D 1 52 2688467 23621.25 457 444 113.8
D 2 249 118948 1041.36 457 444 113.8
D 12 233 99410 869.67 457 444 113.8

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