ASTROSAT CZTI

Data Quality Report

Orbit 34347

Creation date: 2022-02-03T20:18:37.886024
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/AS1A11_047T01_9000004904_34347cztM0_level2.evt modeM0/AS1A11_047T01_9000004904_34347cztM0_level2_quad_clean.evt
Size (bytes)484,522,56093,752,640
Size462.1 MB 89.4 MB
Events in quadrant A2,619,721639,086
Events in quadrant B3,099,133646,447
Events in quadrant C3,108,696628,216
Events in quadrant D5,480,350547,584

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112823
B0126622
C0124392
D0201182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A540490.166543%
B54041112.054034%
C54041142.109548%
D540456710.492228%

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 7227 5405 0 0 0.00% 0.00%
B 7227 5405 63 63 0.87% 1.17%
C 7227 5405 81 81 1.12% 1.50%
D 7226 5404 531 531 7.35% 9.83%

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 10 83 31108 227.89 667 656 133.6
A 13 6 10448 73.28 667 656 133.6
A 13 254 8500 58.7 667 656 133.6
B 5 172 419493 3361.66 655 639 124.6
B 4 251 33691 265.27 655 639 124.6
B 0 229 22037 171.74 655 639 124.6
C 0 10 287731 1957.1 639 645 146.7
C 15 214 224257 1524.39 639 645 146.7
C 14 67 44647 299.97 639 645 146.7
D 12 235 934940 6274.9 612 594 148.9
D 7 223 674184 4523.71 612 594 148.9
D 8 195 577549 3874.73 612 594 148.9

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