ASTROSAT CZTI

Data Quality Report

Orbit 05307

Creation date: 2024-06-27T14:53:44.233582
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/AS1G05_240T01_9000000674_05307cztM0_level2.evt modeM0/AS1G05_240T01_9000000674_05307cztM0_level2_quad_clean.evt
Size (bytes)464,472,00075,329,280
Size443.0 MB 71.8 MB
Events in quadrant A3,271,941458,191
Events in quadrant B3,393,691462,449
Events in quadrant C3,356,045449,460
Events in quadrant D3,580,938435,019

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143797
B0146704
C01480515
D01552312

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01402

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6833691.009805%
B6834691.009658%
C6829270.395373%
D68311301.903089%

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 8810 6837 15 15 0.17% 0.22%
B 8810 6837 7 7 0.08% 0.10%
C 8810 6837 0 0 0.00% 0.00%
D 8810 6837 71 71 0.81% 1.04%

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 0 50 125620 749.74 809 789 166.5
A 13 251 29276 171.09 809 789 166.5
A 12 194 8137 44.13 809 789 166.5
B 4 48 72937 455.17 819 800 158.5
B 15 204 66195 412.63 819 800 158.5
B 10 16 56545 351.74 819 800 158.5
C 1 16 279726 1522.36 784 787 183.2
C 8 128 7575 37.05 784 787 183.2
C 13 61 6422 30.75 784 787 183.2
D 2 234 308882 1594.68 778 753 193.2
D 8 195 124407 639.96 778 753 193.2
D 14 34 66561 340.58 778 753 193.2

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