ASTROSAT CZTI

Data Quality Report

Orbit 00413

Creation date: 2024-06-27T13:59:30.279050
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/AS1P01_161T03_9000000070_00413cztM0_level2.evt modeM0/AS1P01_161T03_9000000070_00413cztM0_level2_quad_clean.evt
Size (bytes)844,928,64038,151,360
Size805.8 MB 36.4 MB
Events in quadrant A6,561,343195,813
Events in quadrant B6,492,633197,283
Events in quadrant C6,106,607194,286
Events in quadrant D6,067,666187,677

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233133
B0231912
C0220082
D0218842

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A542040.073801%
B542020.036900%
C542040.073801%
D542060.110701%

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 7485 5421 118 118 1.58% 2.18%
B 7485 5421 83 83 1.11% 1.53%
C 7485 5421 49 49 0.65% 0.90%
D 7485 5421 85 85 1.14% 1.57%

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 0 238 77891 205.02 1656 1642 371.9
A 12 133 40136 103.5 1656 1642 371.9
A 12 243 27514 69.57 1656 1642 371.9
B 0 220 20629 48.0 1673 1687 394.6
B 15 82 15480 34.95 1673 1687 394.6
B 0 230 13408 29.7 1673 1687 394.6
C 3 159 99172 229.82 1515 1571 424.7
C 10 38 24026 52.87 1515 1571 424.7
C 1 1 20807 45.29 1515 1571 424.7
D 13 221 139783 304.76 1436 1489 453.8
D 13 7 72617 156.75 1436 1489 453.8
D 13 216 70556 152.2 1436 1489 453.8

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