ASTROSAT CZTI

Data Quality Report

Orbit 28648

Creation date: 2024-06-27T19:54:25.998618
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/AS1A10_045T07_9000004110_28648cztM0_level2.evt modeM0/AS1A10_045T07_9000004110_28648cztM0_level2_quad_clean.evt
Size (bytes)1,181,914,560145,362,240
Size1.1 GB 138.6 MB
Events in quadrant A6,692,066912,976
Events in quadrant B6,677,538924,191
Events in quadrant C6,755,810894,995
Events in quadrant D14,819,722798,568

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02540
B02540
C02540
D02540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0268782
B0268402
C0270892
D0529732

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A126051291.023403%
B126061461.158179%
C126062481.967317%
D12606203816.166905%

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 15165 12607 3 3 0.02% 0.02%
B 15166 12608 5 5 0.03% 0.04%
C 15166 12608 0 0 0.00% 0.00%
D 15166 12608 1871 1871 12.34% 14.84%

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 15 174 59200 169.65 1707 1675 339.1
A 13 254 24657 67.78 1707 1675 339.1
A 12 16 19869 53.66 1707 1675 339.1
B 10 247 37856 116.78 1672 1636 310.2
B 12 111 37120 114.41 1672 1636 310.2
B 11 111 33851 103.87 1672 1636 310.2
C 14 238 293031 772.35 1640 1655 377.3
C 14 254 41276 105.02 1640 1655 377.3
C 7 247 16340 38.93 1640 1655 377.3
D 1 52 6355762 17298.83 1557 1518 367.3
D 8 195 2112522 5747.01 1557 1518 367.3
D 2 250 185326 500.4 1557 1518 367.3

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