ASTROSAT CZTI

Data Quality Report

Orbit 06207

Creation date: 2024-06-27T15:04:06.842053
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_103T01_9000000812_06207cztM0_level2.evt modeM0/AS1G06_103T01_9000000812_06207cztM0_level2_quad_clean.evt
Size (bytes)993,551,040235,624,320
Size947.5 MB 224.7 MB
Events in quadrant A7,216,6521,536,166
Events in quadrant B7,630,6331,558,646
Events in quadrant C6,936,9631,513,602
Events in quadrant D7,250,3061,454,039

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03226
B03226
C03222
D03224

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0323
B0326
C0323
D0324

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032476419
B033350462
C032171495
D032880402

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A155781571.007832%
B155711771.136729%
C15543840.540436%
D155831400.898415%

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 18936 15719 3 3 0.02% 0.02%
B 18936 15718 29 29 0.15% 0.18%
C 18936 15724 0 0 0.00% 0.00%
D 18936 15722 23 23 0.12% 0.15%

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 8 15 110589 293.68 1835 1796 370.4
A 4 2 18799 45.9 1835 1796 370.4
A 0 226 17779 43.15 1835 1796 370.4
B 0 219 79496 223.0 1840 1801 348.4
B 15 204 76435 214.21 1840 1801 348.4
B 4 52 68047 190.14 1840 1801 348.4
C 1 16 46861 110.78 1765 1779 407.0
C 13 61 14016 30.07 1765 1779 407.0
C 8 222 5527 9.21 1765 1779 407.0
D 5 97 124025 281.36 1782 1728 434.7
D 12 221 95160 214.95 1782 1728 434.7
D 2 136 71054 159.49 1782 1728 434.7

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