ASTROSAT CZTI

Data Quality Report

Orbit 12233

Creation date: 2024-06-27T16:24:11.169528
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/AS1C03_014T02_9000001806_12233cztM0_level2.evt modeM0/AS1C03_014T02_9000001806_12233cztM0_level2_quad_clean.evt
Size (bytes)596,016,000116,524,800
Size568.4 MB 111.1 MB
Events in quadrant A5,953,347775,467
Events in quadrant B4,212,386778,334
Events in quadrant C2,988,970790,875
Events in quadrant D4,469,574744,533

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0221302
B0166741
C0133991
D0177761

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62955138.149325%
B62953866.131851%
C6295420.667196%
D62953876.147736%

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 7166 6297 254 254 3.54% 4.03%
B 7166 6297 207 207 2.89% 3.29%
C 7166 6297 26 26 0.36% 0.41%
D 7166 6297 289 289 4.03% 4.59%

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 2713398 18425.57 715 699 147.2
A 1 162 148850 1006.29 715 699 147.2
A 1 178 85267 574.41 715 699 147.2
B 4 239 762430 5702.38 710 694 133.6
B 11 51 185565 1383.95 710 694 133.6
B 10 246 156195 1164.08 710 694 133.6
C 15 208 210800 1313.02 697 699 160.0
C 4 175 49862 307.24 697 699 160.0
C 0 207 7333 41.46 697 699 160.0
D 1 52 1061678 6369.9 683 662 166.6
D 13 104 303055 1815.44 683 662 166.6
D 12 221 172569 1032.06 683 662 166.6

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