ASTROSAT CZTI

Data Quality Report

Orbit 13359

Creation date: 2024-06-27T16:39:38.227538
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/AS1G08_082T01_9000001986_13359cztM0_level2.evt modeM0/AS1G08_082T01_9000001986_13359cztM0_level2_quad_clean.evt
Size (bytes)444,888,00093,458,880
Size424.3 MB 89.1 MB
Events in quadrant A3,176,725610,306
Events in quadrant B3,247,293628,264
Events in quadrant C3,334,138597,816
Events in quadrant D3,305,656572,685

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133543
B0136062
C0137612
D0139702

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6027821.360544%
B6027861.426912%
C6027590.978928%
D60271001.659200%

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 7353 6029 0 0 0.00% 0.00%
B 7353 6029 8 8 0.11% 0.13%
C 7353 6029 8 8 0.11% 0.13%
D 7353 6029 27 27 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 15 38302 235.77 798 782 159.1
A 1 162 28873 176.52 798 782 159.1
A 9 143 18248 109.76 798 782 159.1
B 3 64 35481 232.14 803 787 149.5
B 0 197 23165 149.73 803 787 149.5
B 4 142 22964 148.39 803 787 149.5
C 14 220 293565 1676.82 764 772 174.6
C 3 233 59965 339.0 764 772 174.6
C 13 61 5573 27.5 764 772 174.6
D 13 249 186704 1041.51 757 738 178.6
D 8 195 126884 706.49 757 738 178.6
D 1 52 84410 468.61 757 738 178.6

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