ASTROSAT CZTI

Data Quality Report

Orbit 10709

Creation date: 2024-06-27T16:02:47.449516
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_10709cztM0_level2.evt modeM0/AS1A03_053T01_9000001542_10709cztM0_level2_quad_clean.evt
Size (bytes)544,484,16079,822,080
Size519.3 MB 76.1 MB
Events in quadrant A2,988,241527,948
Events in quadrant B4,414,654510,056
Events in quadrant C3,064,964508,821
Events in quadrant D5,627,037462,616

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126982
B0169351
C0131821
D0206011

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5824951.631181%
B58244487.692308%
C58241622.781593%
D58244477.675137%

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 7059 5825 34 34 0.48% 0.58%
B 7059 5825 289 289 4.09% 4.96%
C 7059 5825 97 97 1.37% 1.67%
D 7059 5825 562 562 7.96% 9.65%

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 147691 1012.41 717 705 145.2
A 1 162 33261 224.24 717 705 145.2
A 1 178 10783 69.42 717 705 145.2
B 4 239 1554247 11684.89 701 687 133.0
B 15 204 66211 492.83 701 687 133.0
B 0 214 21583 157.17 701 687 133.0
C 4 254 412346 2627.18 677 682 156.7
C 14 234 5748 32.33 677 682 156.7
C 13 61 5069 27.99 677 682 156.7
D 2 16 2110803 13148.29 669 648 160.5
D 8 195 287981 1790.36 669 648 160.5
D 7 71 220276 1368.49 669 648 160.5

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