ASTROSAT CZTI

Data Quality Report

Orbit 20161111_G06_132T01_9000000784_level2

Creation date: 2017-09-19T00:59:39.965498
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

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/AS1G06_132T01_9000000784cztM0_level2.evt modeM0/AS1G06_132T01_9000000784cztM0_level2_quad_clean.evt
Size (bytes)871,640,640184,230,720
Size831.3 MB 175.7 MB
Events in quadrant A6,639,3591,169,529
Events in quadrant B6,706,2301,182,374
Events in quadrant C5,702,8701,169,062
Events in quadrant D6,433,2321,125,991

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A12513186377920
B12513186377920
C12513186377920
D12513186377920

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0291890
B0288050
C0270130
D0289110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03400
B02700
C03250
D03320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A133502481.857678%
B133702421.810022%
C133291260.945307%
D133482932.195085%

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 22259 14216 66 66 0.30% 0.46%
B 22260 14176 53 53 0.24% 0.37%
C 22261 14116 4 4 0.02% 0.03%
D 22261 14114 37 37 0.17% 0.26%

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 31 712318 2334.34 1492 1456 304.5
A 8 15 45499 144.63 1492 1456 304.5
A 13 34 41598 131.82 1492 1456 304.5
B 3 64 240205 820.1 1510 1471 291.1
B 4 81 185371 631.73 1510 1471 291.1
B 0 214 178100 606.76 1510 1471 291.1
C 9 54 17172 46.69 1446 1448 336.8
C 8 128 15432 41.52 1446 1448 336.8
C 13 61 11470 29.76 1446 1448 336.8
D 13 169 553205 1549.7 1443 1397 356.1
D 8 195 85096 235.06 1443 1397 356.1
D 13 61 50836 138.84 1443 1397 356.1

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