ASTROSAT CZTI

Data Quality Report

Orbit 10183

Creation date: 2024-06-27T15:56:04.162745
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/AS1A03_133T01_9000001464_10183cztM0_level2.evt modeM0/AS1A03_133T01_9000001464_10183cztM0_level2_quad_clean.evt
Size (bytes)880,634,880144,069,120
Size839.8 MB 137.4 MB
Events in quadrant A5,806,068884,246
Events in quadrant B6,251,023887,661
Events in quadrant C5,571,307883,720
Events in quadrant D8,187,677835,255

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02560
B02560
C02560
D02560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0261484
B0270223
C0256913
D0326953

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12619860.681512%
B126191311.038117%
C12619700.554719%
D126192031.608685%

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 14014 12619 14 14 0.10% 0.11%
B 14014 12621 33 33 0.24% 0.26%
C 14014 12621 5 5 0.04% 0.04%
D 14014 12620 127 127 0.91% 1.01%

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 15 223 88884 301.16 1444 1413 290.4
A 15 174 68761 231.88 1444 1413 290.4
A 15 239 31459 103.45 1444 1413 290.4
B 4 239 202724 723.25 1455 1420 278.3
B 11 51 90068 318.5 1455 1420 278.3
B 0 219 81786 288.74 1455 1420 278.3
C 14 67 36536 107.87 1403 1409 325.6
C 14 234 36322 107.22 1403 1409 325.6
C 8 128 11853 32.07 1403 1409 325.6
D 1 52 1296946 3845.36 1387 1345 336.9
D 8 195 828656 2455.47 1387 1345 336.9
D 4 95 313345 926.02 1387 1345 336.9

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