ASTROSAT CZTI

Data Quality Report

Orbit 33960

Creation date: 2024-06-27T20:54:52.923152
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/AS1A11_058T01_9000004854_33960cztM0_level2.evt modeM0/AS1A11_058T01_9000004854_33960cztM0_level2_quad_clean.evt
Size (bytes)458,406,720105,505,920
Size437.2 MB 100.6 MB
Events in quadrant A2,457,813750,064
Events in quadrant B3,415,573730,860
Events in quadrant C2,923,587705,258
Events in quadrant D4,750,178661,832

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100773
B0131362
C0113052
D0175952

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A494780.161714%
B49472104.244997%
C4947761.536285%
D49473507.074995%

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 7099 4948 0 0 0.00% 0.00%
B 7099 4948 166 166 2.34% 3.35%
C 7099 4948 63 63 0.89% 1.27%
D 7099 4948 299 299 4.21% 6.04%

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 14680 113.06 632 620 124.4
A 13 254 9350 70.2 632 620 124.4
A 3 137 5591 39.97 632 620 124.4
B 5 172 467954 4099.76 610 596 114.0
B 15 222 210497 1841.3 610 596 114.0
B 3 112 115450 1007.52 610 596 114.0
C 0 10 298946 2216.78 593 599 134.6
C 15 214 219217 1624.38 593 599 134.6
C 3 233 43340 317.57 593 599 134.6
D 8 195 849713 5340.37 584 571 159.0
D 12 6 438784 2755.98 584 571 159.0
D 13 249 304216 1909.66 584 571 159.0

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