ASTROSAT CZTI

Data Quality Report

Orbit 19163

Creation date: 2024-06-27T17:59:40.642293
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/AS1A05_046T01_9000002838_19163cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19163cztM0_level2_quad_clean.evt
Size (bytes)471,326,40098,496,000
Size449.5 MB 93.9 MB
Events in quadrant A3,256,465637,311
Events in quadrant B3,760,381661,643
Events in quadrant C3,524,094632,701
Events in quadrant D3,308,126614,298

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136572
B0151782
C0144002
D0138782

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6259560.894712%
B62591953.115514%
C62591001.597699%
D6259520.830804%

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 7564 6260 0 0 0.00% 0.00%
B 7564 6260 63 63 0.83% 1.01%
C 7564 6260 4 4 0.05% 0.06%
D 7564 6260 26 26 0.34% 0.42%

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 11 47 32589 188.93 836 822 168.1
A 13 254 7874 41.94 836 822 168.1
A 0 226 7302 38.54 836 822 168.1
B 3 112 237572 1511.01 839 820 156.7
B 7 220 178758 1135.64 839 820 156.7
B 0 197 38175 238.41 839 820 156.7
C 3 233 218978 1151.67 814 824 189.4
C 14 238 127605 669.3 814 824 189.4
C 13 61 5630 25.37 814 824 189.4
D 11 176 210880 1065.03 815 793 197.3
D 2 234 27747 136.64 815 793 197.3
D 1 52 13725 65.56 815 793 197.3

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