ASTROSAT CZTI

Data Quality Report

Orbit 08422

Creation date: 2024-06-27T15:32:32.948448
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/AS1G07_053T01_9000001186_08422cztM0_level2.evt modeM0/AS1G07_053T01_9000001186_08422cztM0_level2_quad_clean.evt
Size (bytes)420,281,28090,685,440
Size400.8 MB 86.5 MB
Events in quadrant A3,035,896581,502
Events in quadrant B3,363,926595,040
Events in quadrant C2,963,343587,811
Events in quadrant D2,951,334556,876

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127372
B0137511
C0125451
D0126911

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6079320.526402%
B6079721.184405%
C6079120.197401%
D6079170.279651%

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 7334 6080 3 3 0.04% 0.05%
B 7334 6080 36 36 0.49% 0.59%
C 7334 6080 0 0 0.00% 0.00%
D 7334 6080 5 5 0.07% 0.08%

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 14 111 65795 423.5 764 751 153.6
A 13 251 17784 110.9 764 751 153.6
A 0 226 7140 41.6 764 751 153.6
B 10 16 224304 1552.38 766 748 144.0
B 0 214 102903 709.37 766 748 144.0
B 11 51 23527 158.18 766 748 144.0
C 13 61 5668 27.91 759 764 175.7
C 8 222 2160 7.94 759 764 175.7
C 3 202 1897 6.45 759 764 175.7
D 2 14 46114 230.11 750 733 197.2
D 1 52 41591 207.17 750 733 197.2
D 2 234 16798 81.46 750 733 197.2

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