ASTROSAT CZTI

Data Quality Report

Orbit 29209

Creation date: 2024-06-27T20:01:30.839712
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_053T43_9000004198_29209cztM0_level2.evt modeM0/AS1A10_053T43_9000004198_29209cztM0_level2_quad_clean.evt
Size (bytes)713,681,28069,474,240
Size680.6 MB 66.3 MB
Events in quadrant A3,440,278439,686
Events in quadrant B3,930,853440,392
Events in quadrant C6,123,943402,514
Events in quadrant D7,695,245381,843

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142791
B0158561
C0227962
D0273921

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6285901.431981%
B62851702.704853%
C62844407.001910%
D6284101416.136219%

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 7510 6286 0 0 0.00% 0.00%
B 7510 6286 22 22 0.29% 0.35%
C 7509 6285 94 94 1.25% 1.50%
D 7509 6285 887 887 11.81% 14.11%

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 0 13 16800 91.28 888 875 174.5
A 13 254 12736 67.99 888 875 174.5
A 3 137 7938 40.49 888 875 174.5
B 10 245 183059 1136.65 869 852 160.3
B 0 183 106646 659.97 869 852 160.3
B 0 229 104019 643.58 869 852 160.3
C 3 233 2759078 14745.77 822 831 187.1
C 14 238 136742 726.59 822 831 187.1
C 2 114 14577 73.49 822 831 187.1
D 1 52 1768515 9388.1 808 790 188.3
D 8 195 1729412 9180.43 808 790 188.3
D 7 80 931124 4940.85 808 790 188.3

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