ASTROSAT CZTI

Data Quality Report

Orbit 22577

Creation date: 2024-06-27T18:43:01.711582
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/AS1A07_054T01_9000003348_22577cztM0_level2.evt modeM0/AS1A07_054T01_9000003348_22577cztM0_level2_quad_clean.evt
Size (bytes)447,307,200102,450,240
Size426.6 MB 97.7 MB
Events in quadrant A3,188,416677,045
Events in quadrant B3,287,191676,405
Events in quadrant C3,171,896645,231
Events in quadrant D3,452,905646,015

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136411
B0138561
C0135641
D0145511

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6573510.775901%
B6574500.760572%
C6574721.095224%
D6574470.714938%

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 7648 6574 0 0 0.00% 0.00%
B 7649 6575 0 0 0.00% 0.00%
C 7649 6575 0 0 0.00% 0.00%
D 7649 6575 6 6 0.08% 0.09%

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 34 13525 77.26 821 806 164.6
A 13 254 10768 60.51 821 806 164.6
A 0 226 7177 38.7 821 806 164.6
B 15 33 77121 506.23 807 789 150.8
B 12 111 18035 114.37 807 789 150.8
B 11 111 16201 102.21 807 789 150.8
C 14 238 125316 688.32 776 780 180.9
C 10 222 16483 86.79 776 780 180.9
C 13 61 5593 26.6 776 780 180.9
D 1 52 213635 1099.8 794 769 193.5
D 12 33 182068 936.71 794 769 193.5
D 2 234 27261 136.87 794 769 193.5

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