ASTROSAT CZTI

Data Quality Report

Orbit 46005

Creation date: 2024-06-27T23:18:39.963034
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_012T08_9000006150_46005cztM0_level2.fits modeM0/AS1A13_012T08_9000006150_46005cztM0_level2_quad_clean.evt
Size (bytes)586,218,240106,067,520
Size559.1 MB 101.2 MB
Events in quadrant A5,951,133725,241
Events in quadrant B8,437,550628,123
Events in quadrant C3,301,792717,553
Events in quadrant D3,474,788660,250

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0222423
B0299461
C0148841
D0153291

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68991632.362661%
B6900138220.028986%
C6900841.217391%
D6900791.144928%

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 7714 6899 9 9 0.12% 0.13%
B 7715 6900 992 992 12.86% 14.38%
C 7715 6900 79 79 1.02% 1.14%
D 7715 6900 47 47 0.61% 0.68%

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 2987053 18836.84 764 747 158.5
A 13 254 10487 61.44 764 747 158.5
A 3 137 8808 50.85 764 747 158.5
B 3 112 5490781 39208.94 705 680 140.0
B 0 186 52262 368.39 705 680 140.0
B 4 171 49957 351.92 705 680 140.0
C 12 2 352073 1972.96 753 755 178.1
C 3 233 6544 32.51 753 755 178.1
C 13 61 5033 24.02 753 755 178.1
D 1 52 161713 843.0 755 731 191.0
D 11 192 102390 532.35 755 731 191.0
D 2 249 62127 321.5 755 731 191.0

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