ASTROSAT CZTI

Data Quality Report

Orbit 15561

Creation date: 2024-06-27T17:10:41.146935
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/AS1T02_083T01_9000002304_15561cztM0_level2.evt modeM0/AS1T02_083T01_9000002304_15561cztM0_level2_quad_clean.evt
Size (bytes)97,352,64021,484,800
Size92.8 MB 20.5 MB
Events in quadrant A710,682139,738
Events in quadrant B715,035142,431
Events in quadrant C734,023136,510
Events in quadrant D698,171134,715

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A028020
B028250
C029290
D027430

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A128610.077760%
B128600.000000%
C128680.622084%
D128620.155521%

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 1287 1287 0 0 0.00% 0.00%
B 1287 1287 0 0 0.00% 0.00%
C 1287 1287 0 0 0.00% 0.00%
D 1287 1287 1 1 0.08% 0.08%

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 0 226 1615 37.91 184 180 37.9
A 12 194 1366 31.33 184 180 37.9
A 15 222 1190 26.68 184 180 37.9
B 3 64 5625 153.71 181 177 35.4
B 12 111 3844 103.46 181 177 35.4
B 11 111 3245 86.56 181 177 35.4
C 14 238 28386 668.98 177 178 42.2
C 3 233 9095 211.47 177 178 42.2
C 10 22 5741 131.93 177 178 42.2
D 1 52 9030 196.93 181 176 45.0
D 2 234 4310 91.95 181 176 45.0
D 5 51 3698 78.34 181 176 45.0

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