ASTROSAT CZTI

Data Quality Report

Orbit 29315

Creation date: 2024-06-27T20:02:55.511958
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/AS1A10_083T01_9000004214_29315cztM0_level2.evt modeM0/AS1A10_083T01_9000004214_29315cztM0_level2_quad_clean.evt
Size (bytes)848,174,40084,790,080
Size808.9 MB 80.9 MB
Events in quadrant A4,893,340532,830
Events in quadrant B4,090,384549,756
Events in quadrant C10,221,617481,897
Events in quadrant D5,997,905501,896

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0191012
B0165552
C0354222
D0226562

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71863805.288060%
B71872623.645471%
C7187155321.608460%
D71874686.511757%

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 7781 7187 226 226 2.90% 3.14%
B 7782 7188 101 101 1.30% 1.41%
C 7782 7188 789 789 10.14% 10.98%
D 7782 7188 266 266 3.42% 3.70%

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 14 235 889571 4881.58 897 877 182.1
A 0 13 274481 1502.9 897 877 182.1
A 1 113 264171 1446.27 897 877 182.1
B 5 255 352167 2110.79 887 866 166.4
B 0 190 148798 888.85 887 866 166.4
B 3 209 55610 328.93 887 866 166.4
C 3 233 6855815 36120.59 818 823 189.8
C 14 238 127798 669.06 818 823 189.8
C 10 22 18700 94.2 818 823 189.8
D 1 52 1411080 6849.78 860 837 205.9
D 8 195 691711 3355.69 860 837 205.9
D 2 250 330489 1601.17 860 837 205.9

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