ASTROSAT CZTI

Data Quality Report

Orbit 44337

Creation date: 2024-06-27T23:02:19.333567
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/AS1A13_004T09_9000005992_44337cztM0_level2.fits modeM0/AS1A13_004T09_9000005992_44337cztM0_level2_quad_clean.evt
Size (bytes)824,515,200205,087,680
Size786.3 MB 195.6 MB
Events in quadrant A8,546,3321,353,301
Events in quadrant B6,813,8261,374,333
Events in quadrant C6,006,8391,356,113
Events in quadrant D8,146,0091,226,635

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02640
B02640
C02640
D02640

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0357702
B0290605
C0272892
D0333913

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A130101270.976172%
B130083162.429274%
C13011680.522635%
D130103943.028440%

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 14100 13011 5 5 0.04% 0.04%
B 14100 13011 187 187 1.33% 1.44%
C 14101 13013 32 32 0.23% 0.25%
D 14100 13011 329 329 2.33% 2.53%

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 10 83 2845877 9462.58 1446 1413 300.6
A 10 248 25220 79.2 1446 1413 300.6
A 0 243 24027 75.23 1446 1413 300.6
B 0 219 728624 2578.78 1430 1385 282.0
B 5 255 124458 436.41 1430 1385 282.0
B 4 173 74489 259.23 1430 1385 282.0
C 14 254 277661 822.52 1425 1434 335.8
C 14 96 62726 182.51 1425 1434 335.8
C 15 208 36833 105.41 1425 1434 335.8
D 13 249 910637 2567.08 1409 1369 354.2
D 12 1 462802 1302.74 1409 1369 354.2
D 2 153 225094 631.63 1409 1369 354.2

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