ASTROSAT CZTI

Data Quality Report

Orbit 46556

Creation date: 2024-06-27T23:24:42.277467
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/AS1C03_005T02_9000006230_46556cztM0_level2.fits modeM0/AS1C03_005T02_9000006230_46556cztM0_level2_quad_clean.evt
Size (bytes)1,006,989,120151,934,400
Size960.3 MB 144.9 MB
Events in quadrant A9,541,9171,076,494
Events in quadrant B5,178,0451,120,116
Events in quadrant C14,270,170720,306
Events in quadrant D7,485,973965,826

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02120
B02120
C02120
D02120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0347922
B0226772
C0495512
D0295122

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A103482912.812138%
B103491111.072567%
C10349352734.080587%
D103493643.517248%

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 11783 10348 69 69 0.59% 0.67%
B 11784 10349 7 7 0.06% 0.07%
C 11784 10349 3456 3456 29.33% 33.39%
D 11784 10349 281 281 2.38% 2.72%

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 10 83 4894352 21280.73 1118 1093 229.9
A 0 247 155478 671.42 1118 1093 229.9
A 14 235 67139 287.23 1118 1093 229.9
B 2 2 486545 2164.52 1125 1086 224.3
B 0 245 59204 259.13 1125 1086 224.3
B 3 112 56778 248.31 1125 1086 224.3
C 1 241 10288273 48104.94 919 922 213.9
C 14 254 287523 1340.18 919 922 213.9
C 12 2 42007 192.12 919 922 213.9
D 1 52 1946511 7147.36 1089 1053 272.2
D 13 249 364085 1333.73 1089 1053 272.2
D 2 120 204362 746.93 1089 1053 272.2

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