ASTROSAT CZTI

Data Quality Report

Orbit 30011

Creation date: 2024-06-27T20:09:52.364145
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/AS1A10_071T02_9000004312_30011cztM0_level2.evt modeM0/AS1A10_071T02_9000004312_30011cztM0_level2_quad_clean.evt
Size (bytes)567,095,040101,448,000
Size540.8 MB 96.7 MB
Events in quadrant A3,675,894659,164
Events in quadrant B5,521,943654,461
Events in quadrant C3,846,757628,081
Events in quadrant D3,641,861629,653

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153912
B0220192
C0157542
D0153622

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71892513.491445%
B71883945.481358%
C71883354.660545%
D71881982.754591%

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 7254 7191 1 1 0.01% 0.01%
B 7253 7190 2 2 0.03% 0.03%
C 7253 7190 0 0 0.00% 0.00%
D 7253 7190 1 1 0.01% 0.01%

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 12 96 54863 285.15 929 908 189.2
A 5 203 24604 125.23 929 908 189.2
A 13 254 12656 62.09 929 908 189.2
B 6 159 1919372 10838.63 901 878 177.0
B 0 183 37619 207.57 901 878 177.0
B 12 111 22343 121.27 901 878 177.0
C 3 233 254824 1206.38 881 888 210.5
C 14 238 140520 663.36 881 888 210.5
C 2 114 16572 74.51 881 888 210.5
D 8 195 198793 911.26 902 882 217.2
D 2 234 30163 134.82 902 882 217.2
D 2 250 18959 83.23 902 882 217.2

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