ASTROSAT CZTI

Data Quality Report

Orbit 03517

Creation date: 2024-06-27T14:30:24.900529
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/AS1G05_045T01_9000000468_03517cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03517cztM0_level2_quad_clean.evt
Size (bytes)435,804,48089,925,120
Size415.6 MB 85.8 MB
Events in quadrant A3,065,148579,684
Events in quadrant B3,576,344582,250
Events in quadrant C3,276,614572,833
Events in quadrant D2,861,498558,235

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133073
B0149202
C0139872
D0130032

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6168881.426719%
B6168610.988975%
C61681081.750973%
D6168510.826848%

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 7488 6168 22 22 0.29% 0.36%
B 7488 6169 5 5 0.07% 0.08%
C 7488 6169 45 45 0.60% 0.73%
D 7488 6169 8 8 0.11% 0.13%

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 50 125172 822.85 740 723 151.2
A 8 15 67525 441.69 740 723 151.2
A 0 118 9765 59.79 740 723 151.2
B 15 204 520488 3668.2 746 729 141.7
B 2 249 40224 278.74 746 729 141.7
B 15 85 35811 247.59 746 729 141.7
C 1 192 290965 1730.72 724 728 167.7
C 6 80 90930 537.89 724 728 167.7
C 1 16 30647 178.41 724 728 167.7
D 13 239 31233 175.67 723 701 173.8
D 2 37 29904 168.02 723 701 173.8
D 5 233 28141 157.88 723 701 173.8

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