ASTROSAT CZTI

Data Quality Report

Orbit 29094

Creation date: 2024-06-27T20:00:29.262243
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_275T01_9000004180_29094cztM0_level2.evt modeM0/AS1T03_275T01_9000004180_29094cztM0_level2_quad_clean.evt
Size (bytes)504,408,96068,613,120
Size481.0 MB 65.4 MB
Events in quadrant A3,185,976436,755
Events in quadrant B3,496,188438,624
Events in quadrant C3,466,717406,026
Events in quadrant D4,740,784397,422

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130042
B0139851
C0140211
D0181121

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57021001.753771%
B57031943.401718%
C57031542.700333%
D57033015.277924%

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 7027 5703 0 0 0.00% 0.00%
B 7028 5704 59 59 0.84% 1.03%
C 7028 5704 3 3 0.04% 0.05%
D 7028 5704 204 204 2.90% 3.58%

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 13 254 10627 60.78 822 809 161.5
A 6 16 9350 52.87 822 809 161.5
A 9 130 7511 41.49 822 809 161.5
B 5 172 166530 1123.07 807 792 147.6
B 5 255 102663 690.3 807 792 147.6
B 10 246 29244 192.8 807 792 147.6
C 3 233 350883 2016.48 761 770 173.6
C 14 238 128102 733.37 761 770 173.6
C 2 114 14135 76.98 761 770 173.6
D 8 195 846225 4709.75 764 747 179.5
D 1 52 469055 2608.72 764 747 179.5
D 12 233 327119 1818.06 764 747 179.5

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