ASTROSAT CZTI

Data Quality Report

Orbit 44397

Creation date: 2024-06-27T23:03:05.814303
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/AS1A13_008T08_9000005998_44397cztM0_level2.fits modeM0/AS1A13_008T08_9000005998_44397cztM0_level2_quad_clean.evt
Size (bytes)462,257,280110,433,600
Size440.8 MB 105.3 MB
Events in quadrant A4,945,933731,006
Events in quadrant B3,540,511760,551
Events in quadrant C3,170,030732,696
Events in quadrant D4,926,230644,963

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0207204
B0147842
C0142372
D0191682

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68021972.896207%
B68021592.337548%
C6802761.117318%
D68024085.998236%

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 7736 6802 4 4 0.05% 0.06%
B 7736 6801 20 20 0.26% 0.29%
C 7736 6801 6 6 0.08% 0.09%
D 7736 6801 378 378 4.89% 5.56%

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 10 83 1816983 11076.26 788 770 164.0
A 0 243 28588 169.65 788 770 164.0
A 8 4 23858 140.8 788 770 164.0
B 4 173 92523 585.84 789 765 156.6
B 0 219 72225 456.24 789 765 156.6
B 0 190 66142 417.41 789 765 156.6
C 14 254 87938 472.37 777 780 184.5
C 1 3 42183 224.39 777 780 184.5
C 3 233 12583 63.97 777 780 184.5
D 2 249 549134 2858.43 762 738 191.9
D 8 240 371974 1935.01 762 738 191.9
D 1 52 214556 1114.49 762 738 191.9

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