ASTROSAT CZTI

Data Quality Report

Orbit 17763

Creation date: 2024-06-27T17:41:29.646118
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_070T09_9000002648_17763cztM0_level2.evt modeM0/AS1T03_070T09_9000002648_17763cztM0_level2_quad_clean.evt
Size (bytes)504,993,60074,145,600
Size481.6 MB 70.7 MB
Events in quadrant A3,318,029447,458
Events in quadrant B3,491,730452,738
Events in quadrant C4,120,412416,557
Events in quadrant D3,877,526430,229

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146712
B0149452
C0168122
D0166142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71461141.595298%
B71471502.098783%
C71474626.464251%
D71472383.330069%

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 8831 7147 0 0 0.00% 0.00%
B 8832 7149 7 7 0.08% 0.10%
C 8832 7148 192 192 2.17% 2.69%
D 8832 7149 140 140 1.59% 1.96%

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 10189 53.27 860 841 175.5
A 0 226 7363 37.17 860 841 175.5
A 3 137 6437 31.89 860 841 175.5
B 0 219 29366 170.87 865 842 166.9
B 0 197 26036 150.92 865 842 166.9
B 7 220 19945 114.43 865 842 166.9
C 4 254 757304 3967.03 809 814 190.7
C 14 238 124002 646.0 809 814 190.7
C 5 218 60519 313.09 809 814 190.7
D 7 238 439726 2221.75 827 806 197.6
D 10 70 236614 1193.63 827 806 197.6
D 7 38 35103 173.61 827 806 197.6

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