ASTROSAT CZTI

Data Quality Report

Orbit 09407

Creation date: 2024-06-27T15:45:39.681729
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_044T09_9000001334_09407cztM0_level2.evt modeM0/AS1G07_044T09_9000001334_09407cztM0_level2_quad_clean.evt
Size (bytes)452,203,200109,889,280
Size431.3 MB 104.8 MB
Events in quadrant A3,799,410723,282
Events in quadrant B3,137,190734,008
Events in quadrant C3,125,847732,410
Events in quadrant D3,213,927708,110

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154003
B0134912
C0132902
D0136522

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6163751.216940%
B6163520.843745%
C6163791.281843%
D6163761.233166%

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 7468 6164 9 9 0.12% 0.15%
B 7468 6164 1 1 0.01% 0.02%
C 7468 6164 5 5 0.07% 0.08%
D 7468 6164 28 28 0.37% 0.45%

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 690958 4397.32 783 769 157.0
A 5 16 40501 253.14 783 769 157.0
A 13 251 18750 114.56 783 769 157.0
B 0 214 61602 420.22 781 763 144.8
B 0 219 29920 201.39 781 763 144.8
B 12 111 14988 98.25 781 763 144.8
C 4 254 76258 428.41 773 778 176.2
C 10 22 32450 179.76 773 778 176.2
C 13 61 5678 27.81 773 778 176.2
D 12 227 101245 534.96 770 754 187.8
D 7 55 33793 175.88 770 754 187.8
D 8 195 29704 154.11 770 754 187.8

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