ASTROSAT CZTI

Data Quality Report

Orbit 17601

Creation date: 2024-06-27T17:38:29.547552
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_056T01_9000002604_17601cztM0_level2.evt modeM0/AS1A05_056T01_9000002604_17601cztM0_level2_quad_clean.evt
Size (bytes)462,591,36065,592,000
Size441.2 MB 62.6 MB
Events in quadrant A3,255,717392,622
Events in quadrant B3,340,792399,747
Events in quadrant C3,754,068382,999
Events in quadrant D3,242,389382,243

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132082
B0135252
C0151852
D0132743

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61311141.859403%
B61311372.234546%
C61311993.245800%
D61301051.712887%

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 7416 6131 0 0 0.00% 0.00%
B 7416 6131 2 2 0.03% 0.03%
C 7416 6131 0 0 0.00% 0.00%
D 7415 6130 6 6 0.08% 0.10%

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 0 226 7412 39.12 845 830 168.3
A 12 194 6133 31.52 845 830 168.3
A 3 137 5891 30.08 845 830 168.3
B 4 48 27980 170.62 849 830 159.1
B 12 111 18620 111.8 849 830 159.1
B 11 111 15979 95.2 849 830 159.1
C 3 233 397673 2100.72 819 825 188.9
C 14 238 129711 682.26 819 825 188.9
C 5 218 33160 171.17 819 825 188.9
D 4 239 53172 263.6 830 808 198.6
D 1 52 37675 185.59 830 808 198.6
D 2 234 19776 95.48 830 808 198.6

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