ASTROSAT CZTI

Data Quality Report

Orbit 28645

Creation date: 2024-06-27T19:54:23.245456
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_28645cztM0_level2.evt modeM0/AS1A10_045T07_9000004110_28645cztM0_level2_quad_clean.evt
Size (bytes)665,965,44092,836,800
Size635.1 MB 88.5 MB
Events in quadrant A3,331,448643,926
Events in quadrant B3,317,955657,060
Events in quadrant C3,381,941632,862
Events in quadrant D9,722,064448,549

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133081
B0132891
C0135302
D0329901

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6137711.156917%
B6138691.124145%
C61371242.020531%
D6137277345.184944%

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 7422 6138 0 0 0.00% 0.00%
B 7423 6139 4 4 0.05% 0.07%
C 7422 6138 0 0 0.00% 0.00%
D 7422 6138 2691 2691 36.26% 43.84%

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 13 254 10496 57.5 856 843 167.9
A 12 96 8858 47.74 856 843 167.9
A 3 137 7573 40.09 856 843 167.9
B 12 111 18196 111.35 838 819 156.1
B 11 111 16971 103.5 838 819 156.1
B 14 111 15997 97.26 838 819 156.1
C 14 238 135015 706.29 823 833 190.0
C 2 16 18698 94.04 823 833 190.0
C 0 10 17133 85.8 823 833 190.0
D 1 52 7026513 49104.73 607 594 143.1
D 8 195 262380 1829.64 607 594 143.1
D 2 250 126486 879.87 607 594 143.1

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