ASTROSAT CZTI

Data Quality Report

Orbit 14070

Creation date: 2024-06-27T16:49:59.019527
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_055T01_9000002076_14070cztM0_level2.evt modeM0/AS1G08_055T01_9000002076_14070cztM0_level2_quad_clean.evt
Size (bytes)494,524,800126,299,520
Size471.6 MB 120.4 MB
Events in quadrant A3,270,346871,553
Events in quadrant B3,719,544882,390
Events in quadrant C3,108,384836,151
Events in quadrant D4,442,539787,322

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139063
B0151582
C0135082
D0175202

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6423851.323369%
B64231372.132960%
C6423350.544917%
D64233425.324615%

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 7679 6425 0 0 0.00% 0.00%
B 7679 6425 37 37 0.48% 0.58%
C 7679 6425 2 2 0.03% 0.03%
D 7679 6425 242 242 3.15% 3.77%

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 74035 452.65 814 801 161.8
A 15 222 40145 243.18 814 801 161.8
A 8 15 19771 117.25 814 801 161.8
B 4 48 263253 1749.99 816 799 150.0
B 15 201 90649 599.1 816 799 150.0
B 3 209 41059 268.44 816 799 150.0
C 3 233 47136 262.81 773 776 176.4
C 0 207 46945 261.72 773 776 176.4
C 13 61 5573 27.19 773 776 176.4
D 10 172 815594 4553.64 755 738 178.9
D 1 52 293961 1638.61 755 738 178.9
D 8 195 126398 702.22 755 738 178.9

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