ASTROSAT CZTI

Data Quality Report

Orbit 47978

Creation date: 2024-08-12T00:07:37.404589
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_062T02_9000006384_47978cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47978cztM0_level2_quad_clean.evt
Size (bytes)448,920,000104,034,240
Size428.1 MB 99.2 MB
Events in quadrant A6,878,494676,578
Events in quadrant B3,139,243707,644
Events in quadrant C3,069,784681,415
Events in quadrant D3,016,686623,468

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250681
B0139881
C0140981
D0140211

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66112453.705945%
B6611841.270610%
C6612630.952813%
D6612761.149425%

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 7571 6611 59 59 0.78% 0.89%
B 7571 6611 13 13 0.17% 0.20%
C 7572 6612 24 24 0.32% 0.36%
D 7572 6612 28 28 0.37% 0.42%

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 4074276 27112.99 718 703 150.2
A 0 31 17745 113.43 718 703 150.2
A 13 254 9133 56.11 718 703 150.2
B 5 255 149546 1042.33 718 694 142.8
B 0 197 51141 353.25 718 694 142.8
B 5 32 25346 172.62 718 694 142.8
C 14 254 281144 1679.39 707 712 167.0
C 12 2 23408 135.92 707 712 167.0
C 3 110 5366 27.87 707 712 167.0
D 2 249 148984 844.74 707 685 175.6
D 11 224 33138 184.86 707 685 175.6
D 2 234 32468 181.04 707 685 175.6

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