ASTROSAT CZTI

Data Quality Report

Orbit 23693

Creation date: 2024-06-27T18:57:35.486534
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/AS1C05_012T03_9000003500_23693cztM0_level2.evt modeM0/AS1C05_012T03_9000003500_23693cztM0_level2_quad_clean.evt
Size (bytes)564,217,920110,943,360
Size538.1 MB 105.8 MB
Events in quadrant A3,022,541754,131
Events in quadrant B3,230,783776,748
Events in quadrant C3,194,553757,747
Events in quadrant D7,221,273640,473

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131601
B0136741
C0135501
D0257165

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6163200.324517%
B6163370.600357%
C6163671.087133%
D6163163126.464384%

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 7443 6163 0 0 0.00% 0.00%
B 7443 6164 5 5 0.07% 0.08%
C 7443 6164 0 0 0.00% 0.00%
D 7442 6162 1359 1359 18.26% 22.05%

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 13 254 9858 57.84 784 770 157.1
A 0 226 6788 38.3 784 770 157.1
A 3 137 6526 36.63 784 770 157.1
B 0 245 67144 454.3 788 768 146.1
B 0 183 31443 209.95 788 768 146.1
B 0 219 18239 119.58 788 768 146.1
C 14 238 123396 689.9 774 783 177.7
C 7 247 40740 224.83 774 783 177.7
C 1 16 12890 68.12 774 783 177.7
D 13 174 3892471 23630.16 686 665 164.7
D 1 52 672437 4078.85 686 665 164.7
D 8 195 30708 182.41 686 665 164.7

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