ASTROSAT CZTI

Data Quality Report

Orbit 12967

Creation date: 2024-06-27T16:34:33.075473
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/AS1A04_112T01_9000001908_12967cztM0_level2.evt modeM0/AS1A04_112T01_9000001908_12967cztM0_level2_quad_clean.evt
Size (bytes)470,949,12088,496,640
Size449.1 MB 84.4 MB
Events in quadrant A3,292,461574,057
Events in quadrant B3,898,414535,915
Events in quadrant C3,047,976586,833
Events in quadrant D3,606,687554,172

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135653
B0155212
C0130142
D0144912

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6144540.878906%
B61445408.789062%
C6144390.634766%
D6144951.546224%

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 7405 6146 1 1 0.01% 0.02%
B 7405 6146 171 171 2.31% 2.78%
C 7405 6146 0 0 0.00% 0.00%
D 7405 6146 54 54 0.73% 0.88%

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 12 189 85439 539.13 786 772 157.0
A 1 162 62108 390.57 786 772 157.0
A 1 178 25935 160.23 786 772 157.0
B 4 239 742769 5388.65 747 731 137.7
B 3 64 133592 964.83 747 731 137.7
B 0 85 67511 484.95 747 731 137.7
C 13 61 5823 28.37 780 783 177.7
C 14 234 5172 24.71 780 783 177.7
C 3 202 1956 6.6 780 783 177.7
D 8 195 242518 1338.93 767 747 180.6
D 1 52 159227 877.66 767 747 180.6
D 13 104 130968 721.17 767 747 180.6

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