ASTROSAT CZTI

Data Quality Report

Orbit 07210

Creation date: 2024-06-27T15:16:58.870410
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_083T01_9000000984_07210cztM0_level2.evt modeM0/AS1G06_083T01_9000000984_07210cztM0_level2_quad_clean.evt
Size (bytes)477,590,400105,552,000
Size455.5 MB 100.7 MB
Events in quadrant A3,310,971667,516
Events in quadrant B3,427,842720,107
Events in quadrant C3,153,160703,096
Events in quadrant D4,115,498637,475

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145703
B0146942
C0140862
D0167442

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6721971.443238%
B6721660.981997%
C6721300.446362%
D67211942.886475%

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 7686 6722 12 12 0.16% 0.18%
B 7686 6722 10 10 0.13% 0.15%
C 7686 6722 2 2 0.03% 0.03%
D 7686 6721 93 93 1.21% 1.38%

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 28766 162.4 837 825 172.1
A 3 1 28506 160.88 837 825 172.1
A 13 248 21798 121.9 837 825 172.1
B 0 214 106360 679.33 816 797 155.4
B 0 219 52125 330.31 816 797 155.4
B 4 81 41835 264.09 816 797 155.4
C 9 243 24727 127.81 795 802 187.2
C 8 128 12104 60.38 795 802 187.2
C 8 112 6527 30.58 795 802 187.2
D 2 216 522254 2557.27 810 789 203.9
D 8 195 372274 1821.77 810 789 203.9
D 2 14 91673 445.7 810 789 203.9

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