ASTROSAT CZTI

Data Quality Report

Orbit 07150

Creation date: 2024-06-27T15:16:11.877105
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/AS1G06_029T02_9000000974_07150cztM0_level2.evt modeM0/AS1G06_029T02_9000000974_07150cztM0_level2_quad_clean.evt
Size (bytes)441,288,00084,254,400
Size420.8 MB 80.4 MB
Events in quadrant A2,993,221529,610
Events in quadrant B3,044,015547,446
Events in quadrant C2,994,486534,564
Events in quadrant D3,908,552504,100

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129382
B0129881
C0131391
D0155881

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6237971.555235%
B6237620.994068%
C6237510.817701%
D62371081.731602%

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 7512 6237 0 0 0.00% 0.00%
B 7512 6237 0 0 0.00% 0.00%
C 7512 6237 7 7 0.09% 0.11%
D 7512 6237 48 48 0.64% 0.77%

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 14 111 46774 299.23 759 744 153.8
A 8 15 17683 110.12 759 744 153.8
A 0 226 7240 42.23 759 744 153.8
B 0 214 45869 311.83 765 750 144.7
B 0 219 21107 140.69 765 750 144.7
B 12 111 14677 96.25 765 750 144.7
C 4 254 104854 612.45 736 740 170.0
C 9 68 8878 47.87 736 740 170.0
C 10 22 7157 37.75 736 740 170.0
D 2 216 875457 4809.63 732 708 181.9
D 8 195 214580 1175.93 732 708 181.9
D 2 14 46973 254.38 732 708 181.9

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