ASTROSAT CZTI

Data Quality Report

Orbit 29485

Creation date: 2024-06-27T20:04:34.924747
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/AS1A10_064T03_9000004246_29485cztM0_level2.evt modeM0/AS1A10_064T03_9000004246_29485cztM0_level2_quad_clean.evt
Size (bytes)746,974,080104,728,320
Size712.4 MB 99.9 MB
Events in quadrant A2,912,794751,125
Events in quadrant B3,015,511779,649
Events in quadrant C3,283,521749,201
Events in quadrant D13,026,453493,313

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119621
B0123271
C0132911
D0425791

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5676130.229035%
B5676330.581395%
C5676550.968992%
D5677424874.828254%

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 7067 5677 0 0 0.00% 0.00%
B 7067 5677 1 1 0.01% 0.02%
C 7067 5677 1 1 0.01% 0.02%
D 7068 5678 4136 4136 58.52% 72.84%

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 13 254 11039 68.76 750 739 149.8
A 1 113 10477 65.01 750 739 149.8
A 3 137 6455 38.16 750 739 149.8
B 0 230 26441 187.26 754 738 137.3
B 12 111 15573 108.08 754 738 137.3
B 0 155 15469 107.32 754 738 137.3
C 3 233 201940 1174.68 745 752 171.3
C 14 238 120758 700.68 745 752 171.3
C 7 247 45079 258.81 745 752 171.3
D 8 195 9080314 72321.36 538 526 125.5
D 1 52 946851 7537.56 538 526 125.5
D 12 33 500467 3982.07 538 526 125.5

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