ASTROSAT CZTI

Data Quality Report

Orbit 03187

Creation date: 2024-06-27T14:25:41.467660
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_127T01_9000000436_03187cztM0_level2.evt modeM0/AS1G05_127T01_9000000436_03187cztM0_level2_quad_clean.evt
Size (bytes)459,486,72071,300,160
Size438.2 MB 68.0 MB
Events in quadrant A2,870,703439,056
Events in quadrant B3,371,250439,000
Events in quadrant C4,329,147422,937
Events in quadrant D2,918,647420,335

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128652
B0141191
C0172151
D0132381

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62601742.779553%
B62601973.146965%
C62604457.108626%
D62601472.348243%

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 6875 6260 0 0 0.00% 0.00%
B 6875 6260 15 15 0.22% 0.24%
C 6875 6260 248 248 3.61% 3.96%
D 6875 6260 11 11 0.16% 0.18%

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 5 113 8906 53.82 740 724 152.0
A 0 226 8215 49.27 740 724 152.0
A 12 194 8019 47.98 740 724 152.0
B 3 0 254140 1730.37 749 733 146.4
B 4 80 78569 531.5 749 733 146.4
B 2 249 49683 334.25 749 733 146.4
C 12 206 1356305 8402.76 696 700 161.3
C 1 192 143771 886.83 696 700 161.3
C 1 16 44653 272.44 696 700 161.3
D 13 223 67575 380.2 716 692 175.9
D 13 120 58652 329.48 716 692 175.9
D 5 233 45322 253.7 716 692 175.9

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