ASTROSAT CZTI

Data Quality Report

Orbit 43721

Creation date: 2024-06-27T22:54:59.649907
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/AS1A13_003T01_9000005902_43721cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43721cztM0_level2_quad_clean.evt
Size (bytes)699,638,40095,791,680
Size667.2 MB 91.4 MB
Events in quadrant A5,834,020715,321
Events in quadrant B4,732,231715,991
Events in quadrant C9,153,464441,713
Events in quadrant D5,710,997604,889

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216674
B0179621
C0313621
D0211551

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60442554.219060%
B60455048.337469%
C6045262843.473945%
D60455969.859388%

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 7184 6045 18 18 0.25% 0.30%
B 7185 6046 285 285 3.97% 4.71%
C 7185 6045 1753 1753 24.40% 29.00%
D 7185 6046 402 402 5.59% 6.65%

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 15 222 1815514 11928.02 733 717 152.1
A 10 83 749855 4923.82 733 717 152.1
A 14 63 313493 2055.77 733 717 152.1
B 4 171 918080 6614.08 714 694 138.7
B 5 235 753539 5427.79 714 694 138.7
B 0 199 120045 860.49 714 694 138.7
C 15 157 4962782 37132.17 567 571 133.6
C 15 158 1678863 12558.64 567 571 133.6
C 3 233 188470 1406.05 567 571 133.6
D 5 235 689140 3899.95 701 681 176.5
D 1 52 360296 2037.13 701 681 176.5
D 13 171 342571 1936.72 701 681 176.5

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