ASTROSAT CZTI

Data Quality Report

Orbit 09499

Creation date: 2024-06-27T15:46:56.314257
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_230T06_9000001350_09499cztM0_level2.evt modeM0/AS1G05_230T06_9000001350_09499cztM0_level2_quad_clean.evt
Size (bytes)589,055,040106,640,640
Size561.8 MB 101.7 MB
Events in quadrant A5,126,250677,160
Events in quadrant B3,750,300694,234
Events in quadrant C3,969,324675,097
Events in quadrant D4,472,846648,649

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02059694
B01635267
C01727555
D018894113

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76772292.982936%
B7680951.236979%
C76871441.873293%
D76742292.984102%

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 8389 7713 11 11 0.13% 0.14%
B 8389 7713 1 1 0.01% 0.01%
C 8389 7713 52 52 0.62% 0.67%
D 8389 7711 154 154 1.84% 2.00%

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 8 5 798422 4230.91 916 896 188.5
A 1 162 323578 1711.84 916 896 188.5
A 1 178 161424 851.61 916 896 188.5
B 0 214 59064 325.9 924 901 178.5
B 0 219 38856 212.67 924 901 178.5
B 4 80 24908 134.51 924 901 178.5
C 4 254 495718 2412.4 881 883 205.1
C 9 68 19261 89.6 881 883 205.1
C 12 4 9509 42.05 881 883 205.1
D 7 71 579732 2510.37 874 851 230.6
D 8 195 181047 781.44 874 851 230.6
D 1 52 135179 582.53 874 851 230.6

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