ASTROSAT CZTI

Data Quality Report

Orbit 07688

Creation date: 2024-06-27T15:22:45.203456
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/AS1G06_104T01_9000001060_07688cztM0_level2.evt modeM0/AS1G06_104T01_9000001060_07688cztM0_level2_quad_clean.evt
Size (bytes)706,472,64071,752,320
Size673.7 MB 68.4 MB
Events in quadrant A3,066,044450,446
Events in quadrant B3,267,701454,383
Events in quadrant C11,165,407384,272
Events in quadrant D3,448,519421,137

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136122
B0139011
C0377311
D0147501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66251352.037736%
B66251412.128302%
C6625228034.415094%
D66251392.098113%

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 7440 6626 0 0 0.00% 0.00%
B 7440 6626 4 4 0.05% 0.06%
C 7440 6626 2156 2156 28.98% 32.54%
D 7440 6626 21 21 0.28% 0.32%

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 3 1 10527 60.88 789 770 160.3
A 0 226 7491 41.93 789 770 160.3
A 12 194 7015 38.96 789 770 160.3
B 0 219 124519 827.04 789 770 149.6
B 0 214 29535 192.24 789 770 149.6
B 15 204 16001 101.79 789 770 149.6
C 9 68 8388743 52052.25 695 698 161.1
C 1 16 26878 162.46 695 698 161.1
C 8 208 26162 158.02 695 698 161.1
D 2 152 193638 1028.92 770 747 187.5
D 12 233 136419 723.7 770 747 187.5
D 1 83 87732 464.0 770 747 187.5

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