ASTROSAT CZTI

Data Quality Report

Orbit 47657

Creation date: 2024-07-21T08:12:20.503099
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/AS1A13_071T01_9000006340_47657cztM0_level2.fits modeM0/AS1A13_071T01_9000006340_47657cztM0_level2_quad_clean.evt
Size (bytes)852,949,440158,040,000
Size813.4 MB 150.7 MB
Events in quadrant A10,406,0801,073,886
Events in quadrant B6,485,1841,077,416
Events in quadrant C5,072,1531,042,259
Events in quadrant D8,805,970871,283

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0382281
B0263591
C0228511
D0336791

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02080
B02080
C02080
D02080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A104012652.547832%
B104014284.114989%
C104011331.278723%
D10401130512.546870%

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 10766 10402 49 49 0.46% 0.47%
B 10766 10402 198 198 1.84% 1.90%
C 10766 10402 75 75 0.70% 0.72%
D 10766 10402 1040 1040 9.66% 10.00%

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 5367640 22806.07 1131 1107 235.3
A 9 191 454244 1925.69 1131 1107 235.3
A 13 248 200243 846.26 1131 1107 235.3
B 0 200 1760110 7954.73 1116 1078 221.1
B 5 172 148792 668.0 1116 1078 221.1
B 0 198 48453 214.24 1116 1078 221.1
C 3 233 427579 1627.17 1110 1113 262.1
C 14 254 171842 651.41 1110 1113 262.1
C 12 2 115954 438.17 1110 1113 262.1
D 12 2 4043959 15237.96 1053 1019 265.3
D 2 249 371882 1397.79 1053 1019 265.3
D 13 29 229074 859.55 1053 1019 265.3

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