ASTROSAT CZTI

Data Quality Report

Orbit 13969

Creation date: 2024-06-27T16:48:34.426407
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/AS1A04_225T01_9000002062_13969cztM0_level2.evt modeM0/AS1A04_225T01_9000002062_13969cztM0_level2_quad_clean.evt
Size (bytes)462,401,280104,598,720
Size441.0 MB 99.8 MB
Events in quadrant A3,126,554683,980
Events in quadrant B3,390,738711,565
Events in quadrant C3,182,104688,769
Events in quadrant D3,872,840640,222

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134713
B0142292
C0132392
D0156362

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6356610.959723%
B63561171.840780%
C6356190.298930%
D63561602.517306%

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 8892 6359 3 3 0.03% 0.05%
B 8892 6359 35 35 0.39% 0.55%
C 8892 6359 0 0 0.00% 0.00%
D 8892 6359 133 133 1.50% 2.09%

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 14 111 64657 408.89 772 756 156.3
A 15 222 33773 211.27 772 756 156.3
A 1 162 19704 121.25 772 756 156.3
B 10 245 131078 891.99 784 765 146.1
B 4 80 39269 263.56 784 765 146.1
B 0 189 37485 251.35 784 765 146.1
C 3 233 177754 1008.12 762 766 175.6
C 12 4 34531 192.32 762 766 175.6
C 13 61 5514 27.04 762 766 175.6
D 13 122 614944 3412.76 738 718 180.0
D 8 195 150505 832.25 738 718 180.0
D 13 189 77740 427.95 738 718 180.0

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