ASTROSAT CZTI

Data Quality Report

Orbit 17198

Creation date: 2024-06-27T17:33:28.932732
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/AS1A05_185T04_9000002548_17198cztM0_level2.evt modeM0/AS1A05_185T04_9000002548_17198cztM0_level2_quad_clean.evt
Size (bytes)502,079,04088,113,600
Size478.8 MB 84.0 MB
Events in quadrant A3,181,505564,508
Events in quadrant B3,493,537561,807
Events in quadrant C4,622,248534,922
Events in quadrant D3,446,685533,130

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140142
B0149322
C0181782
D0149942

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6806300.440788%
B68061191.748457%
C68061822.674111%
D6807570.837373%

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 8951 6808 0 0 0.00% 0.00%
B 8951 6808 34 34 0.38% 0.50%
C 8951 6808 0 0 0.00% 0.00%
D 8952 6809 24 24 0.27% 0.35%

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 12 189 14407 81.72 822 805 166.5
A 0 226 7091 37.76 822 805 166.5
A 12 194 6033 31.41 822 805 166.5
B 7 220 188952 1183.97 821 799 158.9
B 0 219 28191 172.37 821 799 158.9
B 12 111 18241 109.76 821 799 158.9
C 3 233 1418202 7696.1 786 789 184.2
C 14 238 119476 644.43 786 789 184.2
C 1 16 19710 102.73 786 789 184.2
D 5 222 257303 1333.08 795 774 192.4
D 13 189 74048 380.78 795 774 192.4
D 10 70 39436 200.91 795 774 192.4

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