ASTROSAT CZTI

Data Quality Report

Orbit 21032

Creation date: 2024-06-27T18:22:44.178882
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_088T02_9000003106_21032cztM0_level2.evt modeM0/AS1A05_088T02_9000003106_21032cztM0_level2_quad_clean.evt
Size (bytes)462,816,00076,141,440
Size441.4 MB 72.6 MB
Events in quadrant A3,259,801477,112
Events in quadrant B3,584,754485,968
Events in quadrant C3,281,512454,843
Events in quadrant D3,455,610441,067

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133981
B0144281
C0134891
D0143901

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6408610.951935%
B64081061.654182%
C6408921.435705%
D6408751.170412%

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 7733 6409 0 0 0.00% 0.00%
B 7733 6409 11 11 0.14% 0.17%
C 7733 6409 0 0 0.00% 0.00%
D 7733 6409 27 27 0.35% 0.42%

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 7480 39.53 845 831 168.2
A 0 226 7294 38.42 845 831 168.2
A 3 137 6434 33.31 845 831 168.2
B 0 190 67122 416.55 852 833 159.1
B 0 228 56490 349.74 852 833 159.1
B 0 230 40991 252.35 852 833 159.1
C 14 238 128050 679.21 807 815 187.3
C 9 54 8678 41.97 807 815 187.3
C 13 61 5494 24.98 807 815 187.3
D 1 52 245081 1257.46 808 786 194.3
D 1 20 46377 234.67 808 786 194.3
D 7 223 34369 172.86 808 786 194.3

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