ASTROSAT CZTI

Data Quality Report

Orbit 30059

Creation date: 2024-06-27T20:10:26.840763
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_071T07_9000004322_30059cztM0_level2.evt modeM0/AS1A10_071T07_9000004322_30059cztM0_level2_quad_clean.evt
Size (bytes)556,516,80098,821,440
Size530.7 MB 94.2 MB
Events in quadrant A3,367,164641,655
Events in quadrant B5,405,543640,339
Events in quadrant C3,874,607608,332
Events in quadrant D3,727,283609,600

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146532
B0213692
C0161532
D0158612

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7072761.074661%
B70731201.696593%
C70732533.576983%
D70731472.078326%

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 8692 7074 1 1 0.01% 0.01%
B 8693 7075 3 3 0.03% 0.04%
C 8693 7075 48 48 0.55% 0.68%
D 8693 7075 75 75 0.86% 1.06%

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 8 192 26476 146.49 865 845 175.0
A 13 254 13118 70.15 865 845 175.0
A 3 137 9071 47.02 865 845 175.0
B 6 159 1976269 11925.89 852 829 165.6
B 0 229 35207 207.54 852 829 165.6
B 5 255 31737 186.59 852 829 165.6
C 15 208 181203 922.27 825 834 195.6
C 14 238 164028 834.45 825 834 195.6
C 1 90 159280 810.17 825 834 195.6
D 13 104 191338 972.59 830 812 195.9
D 8 195 122495 621.17 830 812 195.9
D 7 223 106798 541.04 830 812 195.9

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