ASTROSAT CZTI

Data Quality Report

Orbit 16863

Creation date: 2024-06-27T17:28:50.875495
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/AS1T03_034T01_9000002500_16863cztM0_level2.evt modeM0/AS1T03_034T01_9000002500_16863cztM0_level2_quad_clean.evt
Size (bytes)434,102,40079,701,120
Size414.0 MB 76.0 MB
Events in quadrant A2,965,710509,741
Events in quadrant B3,098,343518,954
Events in quadrant C2,964,069498,997
Events in quadrant D3,727,164483,047

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120732
B0124491
C0119771
D0146401

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5760961.666667%
B57601091.892361%
C57601192.065972%
D57601682.916667%

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 6986 5762 0 0 0.00% 0.00%
B 6986 5762 3 3 0.04% 0.05%
C 6986 5762 0 0 0.00% 0.00%
D 6986 5762 80 80 1.15% 1.39%

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 15 174 27806 174.62 761 745 155.0
A 9 143 12285 74.46 761 745 155.0
A 0 226 7011 40.43 761 745 155.0
B 15 35 86085 596.33 751 735 143.1
B 0 219 22214 150.07 751 735 143.1
B 10 16 19453 130.78 751 735 143.1
C 14 238 112084 652.14 728 735 170.7
C 0 207 10027 54.42 728 735 170.7
C 13 61 5128 25.73 728 735 170.7
D 1 52 835472 4618.03 739 719 180.8
D 10 70 60546 330.98 739 719 180.8
D 2 234 27578 148.59 739 719 180.8

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