ASTROSAT CZTI

Data Quality Report

Orbit 43302

Creation date: 2024-06-27T22:50:21.534639
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/AS1A12_089T01_9000005864_43302cztM0_level2.fits modeM0/AS1A12_089T01_9000005864_43302cztM0_level2_quad_clean.evt
Size (bytes)326,649,60085,783,680
Size311.5 MB 81.8 MB
Events in quadrant A3,840,873555,375
Events in quadrant B2,552,562600,247
Events in quadrant C2,403,400573,950
Events in quadrant D2,907,916519,778

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0310
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145012
B0107412
C0100422
D0119932

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49652835.699899%
B4965160.322256%
C496540.080564%
D4965400.805639%

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 7058 4966 244 244 3.46% 4.91%
B 7058 4966 8 8 0.11% 0.16%
C 7058 4966 0 0 0.00% 0.00%
D 7058 4966 33 33 0.47% 0.66%

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 15 237 835244 7323.1 561 552 114.0
A 10 83 580987 5092.4 561 552 114.0
A 15 223 211453 1850.32 561 552 114.0
B 4 67 157629 1415.57 568 552 111.0
B 5 172 44932 399.95 568 552 111.0
B 0 190 43426 386.38 568 552 111.0
C 15 214 213729 1624.25 557 560 131.2
C 15 159 9466 67.86 557 560 131.2
C 3 233 4401 29.27 557 560 131.2
D 1 20 280290 2040.37 556 540 137.1
D 2 96 195518 1422.08 556 540 137.1
D 2 249 112825 818.96 556 540 137.1

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