ASTROSAT CZTI

Data Quality Report

Orbit 10712

Creation date: 2024-06-27T16:02:50.302449
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/AS1A03_053T01_9000001542_10712cztM0_level2.evt modeM0/AS1A03_053T01_9000001542_10712cztM0_level2_quad_clean.evt
Size (bytes)536,212,80085,222,080
Size511.4 MB 81.3 MB
Events in quadrant A3,061,705555,479
Events in quadrant B5,133,505537,546
Events in quadrant C3,637,991544,976
Events in quadrant D3,980,350504,503

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133323
B0193592
C0151452
D0159542

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6274550.876634%
B62745258.367867%
C62741993.171820%
D62741582.518330%

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 7544 6275 25 25 0.33% 0.40%
B 7544 6275 320 320 4.24% 5.10%
C 7544 6275 102 102 1.35% 1.63%
D 7544 6275 147 147 1.95% 2.34%

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 15 174 99301 643.5 757 743 153.2
A 1 162 17033 106.36 757 743 153.2
A 11 29 8534 50.87 757 743 153.2
B 4 239 1816809 12829.15 745 728 141.6
B 4 81 166425 1170.52 745 728 141.6
B 0 219 114193 801.54 745 728 141.6
C 4 254 798720 4758.09 724 730 167.7
C 14 234 8500 46.33 724 730 167.7
C 13 61 5468 28.25 724 730 167.7
D 10 199 383865 2204.37 715 695 173.8
D 8 195 298862 1715.35 715 695 173.8
D 7 71 177280 1015.89 715 695 173.8

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