ASTROSAT CZTI

Data Quality Report

Orbit 43453

Creation date: 2024-06-27T22:52:09.731450
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/AS1A12_018T01_9000005874_43453cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43453cztM0_level2_quad_clean.evt
Size (bytes)895,109,760159,531,840
Size853.6 MB 152.1 MB
Events in quadrant A11,656,487912,788
Events in quadrant B6,901,1231,143,323
Events in quadrant C5,084,4941,089,581
Events in quadrant D8,673,712952,798

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0415222
B0275072
C0218325
D03301920

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02120
B02120
C02120
D02120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10572226821.452894%
B105732782.629339%
C10571280.264876%
D105686516.160106%

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 13379 10573 2171 2171 16.23% 20.53%
B 13380 10575 241 241 1.80% 2.28%
C 13380 10574 22 22 0.16% 0.21%
D 13379 10572 648 648 4.84% 6.13%

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 15 222 6176329 30131.83 1008 986 204.9
A 10 83 1007395 4910.65 1008 986 204.9
A 15 237 515410 2510.07 1008 986 204.9
B 0 189 675873 3164.77 1124 1096 213.2
B 0 229 534470 2501.57 1124 1096 213.2
B 0 245 376437 1760.38 1124 1096 213.2
C 15 214 461984 1796.88 1103 1108 256.5
C 3 233 165498 640.93 1103 1108 256.5
C 14 254 94505 364.14 1103 1108 256.5
D 1 52 2587437 9759.43 1080 1047 265.0
D 12 233 746551 2813.07 1080 1047 265.0
D 2 16 491686 1851.37 1080 1047 265.0

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