ASTROSAT CZTI

Data Quality Report

Orbit 20231006_C07_001T10_9000005872_level2

Creation date: 2023-10-09T10:22:55.733948
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/AS1C07_001T10_9000005872cztM0_level2.fits modeM0/AS1C07_001T10_9000005872cztM0_level2_quad_clean.evt
Size (bytes)360,221,760557,291,520
Size343.5 MB 531.5 MB
Events in quadrant A2,115,7623,635,057
Events in quadrant B2,069,1003,715,199
Events in quadrant C2,091,5143,505,388
Events in quadrant D1,805,4843,197,654

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08440
B08440
C08440
D08440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01690
B01690
C01690
D01690

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0941260
B0843450
C0915210
D0993100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A411745341.296935%
B411741130.274445%
C411741460.354593%
D4117410652.586584%

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 58173 41154 0 0 0.00% 0.00%
B 58173 41174 0 0 0.00% 0.00%
C 58173 41174 0 0 0.00% 0.00%
D 58173 41149 0 0 0.00% 0.00%

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 29 1765 8.78 553 519 142.0
A 9 19 1762 8.76 553 519 142.0
A 7 110 1716 8.43 553 519 142.0
B 2 9 1815 12.19 547 522 106.1
B 2 8 1508 9.29 547 522 106.1
B 3 17 1427 8.53 547 522 106.1
C 1 81 1795 9.02 553 517 141.7
C 1 80 1769 8.84 553 517 141.7
C 3 203 1607 7.69 553 517 141.7
D 10 189 1369 6.44 516 470 139.6
D 4 160 1360 6.38 516 470 139.6
D 10 113 1358 6.36 516 470 139.6

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