ASTROSAT CZTI

Data Quality Report

Orbit 32051

Creation date: 2024-06-27T20:35:52.792159
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/AS1T04_046T01_9000004680_32051cztM0_level2.evt modeM0/AS1T04_046T01_9000004680_32051cztM0_level2_quad_clean.evt
Size (bytes)712,635,840101,666,880
Size679.6 MB 97.0 MB
Events in quadrant A3,239,927696,582
Events in quadrant B5,276,587682,617
Events in quadrant C3,434,964680,287
Events in quadrant D9,181,625555,079

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137322
B0206822
C0141862
D0318822

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6648811.218412%
B66492113.173410%
C66491382.075500%
D6649170025.567755%

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 7238 6649 2 2 0.03% 0.03%
B 7239 6650 47 47 0.65% 0.71%
C 7239 6651 0 0 0.00% 0.00%
D 7238 6650 1745 1745 24.11% 26.24%

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 15 174 13006 72.87 833 817 167.3
A 13 254 12932 72.43 833 817 167.3
A 3 137 8158 43.89 833 817 167.3
B 6 159 1770226 11583.08 811 792 152.8
B 5 172 210725 1374.27 811 792 152.8
B 10 245 29095 185.28 811 792 152.8
C 14 238 130486 703.66 790 795 184.3
C 3 233 124395 670.61 790 795 184.3
C 0 10 49114 262.16 790 795 184.3
D 12 227 5243454 30193.3 729 710 173.6
D 8 195 900013 5179.14 729 710 173.6
D 7 38 159708 915.68 729 710 173.6

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