ASTROSAT CZTI

Data Quality Report

Orbit 46107

Creation date: 2024-06-27T23:19:19.145193
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/AS1C07_001T10_9000006170_46107cztM0_level2.fits modeM0/AS1C07_001T10_9000006170_46107cztM0_level2_quad_clean.evt
Size (bytes)690,212,160101,183,040
Size658.2 MB 96.5 MB
Events in quadrant A6,357,482729,176
Events in quadrant B3,754,981769,928
Events in quadrant C3,217,134738,885
Events in quadrant D11,677,355338,574

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232312
B0157072
C0146412
D0394692

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69892393.419659%
B6989951.359279%
C69891221.745600%
D6989382654.743168%

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 7819 6990 9 9 0.12% 0.13%
B 7819 6990 1 1 0.01% 0.01%
C 7819 6990 38 38 0.49% 0.54%
D 7818 6987 2832 2832 36.22% 40.53%

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 10 83 3125684 19373.44 777 759 161.3
A 14 235 205729 1270.74 777 759 161.3
A 0 247 10702 61.64 777 759 161.3
B 0 190 322921 2096.33 781 758 153.7
B 3 112 272547 1768.54 781 758 153.7
B 0 186 20677 129.61 781 758 153.7
C 14 254 177544 980.24 769 772 180.3
C 3 233 30616 165.49 769 772 180.3
C 13 61 4932 23.07 769 772 180.3
D 2 37 4482969 35686.29 504 488 125.6
D 8 129 2836490 22578.21 504 488 125.6
D 5 235 1199204 9543.32 504 488 125.6

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