ASTROSAT CZTI

Data Quality Report

Orbit 17286

Creation date: 2024-06-27T17:34:33.544044
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/AS1A05_010T02_9000002556_17286cztM0_level2.evt modeM0/AS1A05_010T02_9000002556_17286cztM0_level2_quad_clean.evt
Size (bytes)579,928,32075,574,080
Size553.1 MB 72.1 MB
Events in quadrant A2,801,804498,487
Events in quadrant B2,812,959500,079
Events in quadrant C2,796,560470,542
Events in quadrant D8,738,911393,418

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124681
B0124691
C0123601
D0301871

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6097300.492045%
B6097500.820075%
C6097661.082500%
D6097185730.457602%

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 6532 6098 0 0 0.00% 0.00%
B 6532 6098 1 1 0.02% 0.02%
C 6532 6098 0 0 0.00% 0.00%
D 6532 6098 1792 1792 27.43% 29.39%

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 0 23 37545 253.15 713 697 145.6
A 4 2 12762 82.89 713 697 145.6
A 0 13 9432 60.01 713 697 145.6
B 12 111 16872 117.94 713 695 137.2
B 11 111 14645 101.7 713 695 137.2
B 0 230 13595 94.05 713 695 137.2
C 14 238 103505 637.08 682 685 161.4
C 3 233 33751 204.88 682 685 161.4
C 13 61 4844 25.77 682 685 161.4
D 11 176 6026360 39695.79 620 600 151.8
D 13 232 172855 1134.76 620 600 151.8
D 10 70 130802 857.73 620 600 151.8

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