ASTROSAT CZTI

Data Quality Report

Orbit 17248

Creation date: 2024-06-27T17:34:05.139536
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/AS1A05_185T04_9000002552_17248cztM0_level2.evt modeM0/AS1A05_185T04_9000002552_17248cztM0_level2_quad_clean.evt
Size (bytes)430,122,24088,246,080
Size410.2 MB 84.2 MB
Events in quadrant A3,108,538568,953
Events in quadrant B3,156,696569,290
Events in quadrant C3,089,867540,193
Events in quadrant D3,225,703537,135

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134651
B0134911
C0133521
D0140061

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6560510.777439%
B6560560.853659%
C6560671.021341%
D6559851.295929%

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 6561 0 0 0.00% 0.00%
B 7485 6561 0 0 0.00% 0.00%
C 7485 6561 0 0 0.00% 0.00%
D 7484 6560 38 38 0.51% 0.58%

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 0 23 26749 160.91 798 779 161.4
A 15 174 12166 70.55 798 779 161.4
A 0 226 8596 48.43 798 779 161.4
B 6 36 22380 141.44 792 772 152.8
B 12 111 18057 113.15 792 772 152.8
B 11 111 15711 97.79 792 772 152.8
C 14 238 118260 659.63 755 758 178.1
C 3 233 29057 158.86 755 758 178.1
C 13 61 5349 25.77 755 758 178.1
D 10 70 235947 1253.09 769 748 187.7
D 13 189 33292 173.39 769 748 187.7
D 2 234 28308 146.83 769 748 187.7

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