ASTROSAT CZTI

Data Quality Report

Orbit 43062

Creation date: 2024-06-27T22:47:30.469427
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/AS1A09_006T09_9000005842_43062cztM0_level2.fits modeM0/AS1A09_006T09_9000005842_43062cztM0_level2_quad_clean.evt
Size (bytes)1,108,728,000247,901,760
Size1.0 GB 236.4 MB
Events in quadrant A9,082,5801,678,092
Events in quadrant B8,145,9591,707,438
Events in quadrant C7,444,6871,693,694
Events in quadrant D15,145,4631,336,291

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03240
B03240
C03240
D03240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0366724
B0355804
C0320664
D0561806

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0550
B0550
C0550
D0550

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A158012011.272071%
B158013532.234036%
C15802110.069611%
D15801186611.809379%

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 21288 15805 126 126 0.59% 0.80%
B 21288 15805 218 218 1.02% 1.38%
C 21289 15806 4 4 0.02% 0.03%
D 21288 15805 1725 1725 8.10% 10.91%

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 1507398 4281.8 1714 1679 351.7
A 15 237 578640 1640.7 1714 1679 351.7
A 15 222 226841 640.29 1714 1679 351.7
B 5 255 785064 2388.45 1702 1651 328.0
B 0 186 466827 1418.22 1702 1651 328.0
B 0 229 112220 337.1 1702 1651 328.0
C 15 214 693503 1749.83 1695 1706 395.4
C 15 111 89092 221.03 1695 1706 395.4
C 14 254 34139 82.04 1695 1706 395.4
D 2 16 5959200 15022.67 1621 1576 396.6
D 12 6 1120114 2820.49 1621 1576 396.6
D 1 52 836405 2105.09 1621 1576 396.6

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