ASTROSAT CZTI

Data Quality Report

Orbit 19637

Creation date: 2024-06-27T18:05:03.733389
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_101T08_9000002922_19637cztM0_level2.evt modeM0/AS1A05_101T08_9000002922_19637cztM0_level2_quad_clean.evt
Size (bytes)368,501,76079,436,160
Size351.4 MB 75.8 MB
Events in quadrant A2,367,910522,857
Events in quadrant B2,833,219525,584
Events in quadrant C2,414,528508,474
Events in quadrant D3,197,654491,595

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104861
B0118071
C0104201
D0129791

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5085320.629302%
B50851342.635202%
C5085380.747296%
D50851312.576205%

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 6145 5086 7 7 0.11% 0.14%
B 6145 5086 101 101 1.64% 1.99%
C 6145 5086 0 0 0.00% 0.00%
D 6145 5086 100 100 1.63% 1.97%

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 5 16 38097 305.38 605 590 122.8
A 13 254 5384 39.03 605 590 122.8
A 0 226 5032 36.17 605 590 122.8
B 3 112 458142 4036.39 599 585 113.4
B 12 111 13904 117.49 599 585 113.4
B 11 111 11867 99.53 599 585 113.4
C 14 238 91438 663.52 587 592 136.9
C 3 233 19917 141.15 587 592 136.9
C 8 208 8211 55.65 587 592 136.9
D 1 52 378664 2686.06 587 571 140.8
D 12 218 342044 2425.9 587 571 140.8
D 7 238 160525 1136.35 587 571 140.8

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