ASTROSAT CZTI

Data Quality Report

Orbit 14573

Creation date: 2024-06-27T16:57:00.162302
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/AS1A04_089T01_9000002146_14573cztM0_level2.evt modeM0/AS1A04_089T01_9000002146_14573cztM0_level2_quad_clean.evt
Size (bytes)560,522,88071,461,440
Size534.6 MB 68.2 MB
Events in quadrant A5,877,799429,932
Events in quadrant B3,571,846443,046
Events in quadrant C3,788,068426,690
Events in quadrant D3,309,698422,596

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0218683
B0148392
C0154282
D0139402

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63273205.057689%
B63271241.959855%
C6327570.900901%
D6327610.964122%

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 7493 6329 203 203 2.71% 3.21%
B 7493 6329 21 21 0.28% 0.33%
C 7493 6329 0 0 0.00% 0.00%
D 7493 6329 11 11 0.15% 0.17%

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 2205164 13263.01 829 812 166.2
A 8 15 299742 1798.58 829 812 166.2
A 0 226 142137 850.31 829 812 166.2
B 10 16 129987 811.44 834 815 159.2
B 0 189 65126 403.99 834 815 159.2
B 0 219 46051 284.17 834 815 159.2
C 3 233 632549 3405.49 807 814 185.5
C 13 61 5753 26.62 807 814 185.5
C 14 225 5615 25.88 807 814 185.5
D 12 110 59549 300.39 815 795 195.6
D 13 122 46267 232.48 815 795 195.6
D 2 152 45988 231.06 815 795 195.6

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