ASTROSAT CZTI

Data Quality Report

Orbit 28357

Creation date: 2024-06-27T19:50:53.630525
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_101T02_9000004084_28357cztM0_level2.evt modeM0/AS1A10_101T02_9000004084_28357cztM0_level2_quad_clean.evt
Size (bytes)496,414,08089,472,960
Size473.4 MB 85.3 MB
Events in quadrant A3,197,131584,904
Events in quadrant B3,408,945606,421
Events in quadrant C3,528,521554,839
Events in quadrant D4,477,621529,184

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131140
B0138550
C0140610
D0173990

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6219230.369834%
B6219530.852227%
C62192003.215951%
D62191812.910436%

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 7574 6220 0 0 0.00% 0.00%
B 7574 6220 2 2 0.03% 0.03%
C 7574 6220 97 97 1.28% 1.56%
D 7574 6220 133 133 1.76% 2.14%

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 14049 80.6 825 810 164.2
A 13 254 10746 60.49 825 810 164.2
A 3 137 7667 41.75 825 810 164.2
B 10 245 58475 372.2 834 816 154.9
B 0 230 40036 253.17 834 816 154.9
B 10 246 24075 150.14 834 816 154.9
C 3 233 301533 1621.54 793 802 185.5
C 14 238 129413 693.47 793 802 185.5
C 0 10 7130 34.12 793 802 185.5
D 1 52 727228 3877.58 788 769 187.3
D 8 195 652032 3476.21 788 769 187.3
D 2 250 93804 496.59 788 769 187.3

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