ASTROSAT CZTI

Data Quality Report

Orbit 47447

Creation date: 2024-07-07T03:30:56.448029
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/AS1A13_089T01_9000006330_47447cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47447cztM0_level2_quad_clean.evt
Size (bytes)265,135,68063,089,280
Size252.9 MB 60.2 MB
Events in quadrant A3,847,342408,728
Events in quadrant B2,021,039439,246
Events in quadrant C1,768,888417,201
Events in quadrant D1,887,135382,404

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138981
B084071
C078331
D082561

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A37171955.246166%
B3717671.802529%
C3717250.672585%
D3717260.699489%

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 4867 3718 73 73 1.50% 1.96%
B 4867 3718 5 5 0.10% 0.13%
C 4867 3718 2 2 0.04% 0.05%
D 4867 3718 20 20 0.41% 0.54%

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 2085706 22462.53 438 429 92.8
A 9 191 60071 642.46 438 429 92.8
A 13 254 5426 53.83 438 429 92.8
B 5 32 134930 1517.34 444 430 88.6
B 12 3 32115 357.45 444 430 88.6
B 4 171 21764 240.68 444 430 88.6
C 1 3 43470 410.13 437 440 104.9
C 3 233 11941 109.62 437 440 104.9
C 0 207 7545 67.72 437 440 104.9
D 2 249 99020 896.04 433 419 110.0
D 8 176 61404 554.2 433 419 110.0
D 11 192 24127 215.45 433 419 110.0

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