ASTROSAT CZTI

Data Quality Report

Orbit 10353

Creation date: 2024-06-27T15:58:15.776091
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/AS1C02_038T02_9000001490_10353cztM0_level2.evt modeM0/AS1C02_038T02_9000001490_10353cztM0_level2_quad_clean.evt
Size (bytes)183,012,48032,929,920
Size174.5 MB 31.4 MB
Events in quadrant A1,251,355196,964
Events in quadrant B1,357,220183,767
Events in quadrant C1,263,472196,244
Events in quadrant D1,469,871212,682

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B031
C031
D041

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0184124
B0184130
C0183127
D0173119

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01767511852
B02164415905
C01842512517
D01856012025

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A289170.242131%
B2677120.448263%
C293120.068236%
D315120.063472%

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 4572 3869 0 0 0.00% 0.00%
B 4572 3602 0 0 0.00% 0.00%
C 4572 3875 0 0 0.00% 0.00%
D 4570 3978 1 1 0.02% 0.03%

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 13 251 3572 48.08 323 315 67.7
A 0 226 2934 38.66 323 315 67.7
A 12 194 2765 36.17 323 315 67.7
B 4 239 80246 1366.64 301 293 58.5
B 3 208 46879 796.3 301 293 58.5
B 11 51 17926 301.4 301 293 58.5
C 4 175 4121 49.59 322 323 76.6
C 13 61 2423 27.42 322 323 76.6
C 14 234 1739 18.49 322 323 76.6
D 8 195 92032 1110.77 342 333 82.6
D 1 52 26171 312.98 342 333 82.6
D 2 33 20914 249.3 342 333 82.6

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