ASTROSAT CZTI

Data Quality Report

Orbit 10093

Creation date: 2024-06-27T15:54:57.705210
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_072T01_9000001452_10093cztM0_level2.evt modeM0/AS1G07_072T01_9000001452_10093cztM0_level2_quad_clean.evt
Size (bytes)159,212,16030,623,040
Size151.8 MB 29.2 MB
Events in quadrant A1,066,567204,916
Events in quadrant B1,128,694202,715
Events in quadrant C1,042,736199,923
Events in quadrant D1,422,423151,759

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166122
B0166116
C0163118
D0165113

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01654611524
B01736112307
C01843513572
D02373918224

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A092
B092
C095
D093

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A248170.282144%
B2452170.693312%
C238660.251467%
D1925381.974026%

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 9050 3556 0 0 0.00% 0.00%
B 9035 3498 0 0 0.00% 0.00%
C 9050 3400 0 0 0.00% 0.00%
D 9055 2899 26 26 0.29% 0.90%

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 3977 63.2 275 268 58.7
A 0 226 2587 39.52 275 268 58.7
A 12 194 2235 33.52 275 268 58.7
B 4 174 17049 309.22 275 269 54.3
B 0 214 11223 201.86 275 269 54.3
B 0 219 8865 158.4 275 269 54.3
C 10 22 29120 466.32 257 258 61.9
C 14 234 4871 74.53 257 258 61.9
C 14 67 2176 30.99 257 258 61.9
D 10 157 264714 5079.41 202 195 52.1
D 1 52 196995 3779.04 202 195 52.1
D 7 71 53411 1021.88 202 195 52.1

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