ASTROSAT CZTI

Data Quality Report

Orbit 11022

Creation date: 2024-06-27T16:07:10.348553
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/AS1G08_046T09_9000001600_11022cztM0_level2.evt modeM0/AS1G08_046T09_9000001600_11022cztM0_level2_quad_clean.evt
Size (bytes)441,066,24066,816,000
Size420.6 MB 63.7 MB
Events in quadrant A3,017,172415,468
Events in quadrant B3,629,234412,289
Events in quadrant C2,420,176417,900
Events in quadrant D3,917,833392,704

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01266118
B01452915
C0111849
D0155696

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5492561.019665%
B54962785.058224%
C5496140.254731%
D54991683.055101%

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 5500 5500 38 38 0.69% 0.69%
B 5500 5500 184 184 3.35% 3.35%
C 5500 5500 10 10 0.18% 0.18%
D 5500 5500 87 87 1.58% 1.58%

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 8 5 546513 4266.62 621 606 127.9
A 14 238 71843 556.76 621 606 127.9
A 0 226 5730 40.05 621 606 127.9
B 4 239 1106198 9337.65 614 598 118.4
B 4 81 60346 504.62 614 598 118.4
B 0 187 20204 165.59 614 598 118.4
C 14 234 43106 299.23 607 609 142.0
C 13 61 4509 27.46 607 609 142.0
C 8 222 3603 21.08 607 609 142.0
D 1 52 757300 5214.66 600 581 145.1
D 8 195 477600 3287.2 600 581 145.1
D 10 253 136739 938.28 600 581 145.1

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