ASTROSAT CZTI

Data Quality Report

Orbit 14259

Creation date: 2024-06-27T16:52:35.953375
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/AS1G08_014T01_9000002104_14259cztM0_level2.evt modeM0/AS1G08_014T01_9000002104_14259cztM0_level2_quad_clean.evt
Size (bytes)570,430,08079,349,760
Size544.0 MB 75.7 MB
Events in quadrant A4,591,523491,380
Events in quadrant B4,393,285492,655
Events in quadrant C3,729,901470,350
Events in quadrant D4,090,739464,824

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0184133
B0172902
C0147672
D0163412

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69312473.563699%
B69313785.453758%
C69311261.817919%
D69311902.741307%

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 7872 6932 39 39 0.50% 0.56%
B 7872 6932 122 122 1.55% 1.76%
C 7872 6932 0 0 0.00% 0.00%
D 7872 6932 21 21 0.27% 0.30%

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 23 966071 5423.11 885 869 178.0
A 8 15 78520 436.29 885 869 178.0
A 0 226 69583 386.08 885 869 178.0
B 10 245 691432 4141.95 870 848 166.7
B 0 229 174041 1038.77 870 848 166.7
B 3 209 26736 155.27 870 848 166.7
C 3 233 407820 2056.7 852 856 197.9
C 13 61 5968 25.83 852 856 197.9
C 10 22 2885 10.25 852 856 197.9
D 8 195 385788 1893.53 857 836 203.3
D 10 199 272565 1336.6 857 836 203.3
D 5 222 96145 468.81 857 836 203.3

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