ASTROSAT CZTI

Data Quality Report

Orbit 10121

Creation date: 2024-06-27T15:55:14.256609
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/AS1G07_065T01_9000001454_10121cztM0_level2.evt modeM0/AS1G07_065T01_9000001454_10121cztM0_level2_quad_clean.evt
Size (bytes)133,565,76038,736,000
Size127.4 MB 36.9 MB
Events in quadrant A929,305264,237
Events in quadrant B1,041,366265,292
Events in quadrant C881,675256,655
Events in quadrant D1,056,537243,753

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0398110
B043980
C039364
D043614

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A195700.000000%
B196260.305810%
C196000.000000%
D1960140.714286%

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 1962 1962 0 0 0.00% 0.00%
B 1962 1962 4 4 0.20% 0.20%
C 1962 1962 0 0 0.00% 0.00%
D 1962 1962 13 13 0.66% 0.66%

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 8 15 9095 178.72 238 235 49.6
A 0 226 2287 41.39 238 235 49.6
A 12 194 2097 37.56 238 235 49.6
B 0 214 84423 1805.26 235 231 46.6
B 4 239 15034 317.41 235 231 46.6
B 0 219 11367 238.78 235 231 46.6
C 13 61 1667 26.94 225 226 53.5
C 14 67 1163 17.52 225 226 53.5
C 8 222 791 10.56 225 226 53.5
D 8 195 54103 955.29 227 220 56.4
D 2 14 43593 768.96 227 220 56.4
D 7 71 40595 715.81 227 220 56.4

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