ASTROSAT CZTI

Data Quality Report

Orbit 05121

Creation date: 2024-06-27T14:51:35.052806
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/AS1G05_230T05_9000000648_05121cztM0_level2.evt modeM0/AS1G05_230T05_9000000648_05121cztM0_level2_quad_clean.evt
Size (bytes)368,781,12043,522,560
Size351.7 MB 41.5 MB
Events in quadrant A2,009,185263,887
Events in quadrant B2,202,682275,760
Events in quadrant C1,999,614276,550
Events in quadrant D4,673,689207,888

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09711
B09713
C09610
D09410

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09523872
B09990862
C09477861
D0183321568

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4166220.528084%
B4169360.863516%
C4168240.575816%
D416390921.835215%

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 8911 4209 1 1 0.01% 0.02%
B 8911 4211 3 3 0.03% 0.07%
C 8911 4215 1 1 0.01% 0.02%
D 8910 4207 625 625 7.01% 14.86%

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 50 29818 277.69 512 499 105.6
A 0 226 5363 46.07 512 499 105.6
A 12 194 5155 44.1 512 499 105.6
B 8 3 63798 622.41 522 510 101.7
B 15 204 51767 504.09 522 510 101.7
B 10 16 24327 234.23 522 510 101.7
C 14 225 6526 50.33 509 512 119.5
C 13 61 4060 29.69 509 512 119.5
C 1 16 3302 23.35 509 512 119.5
D 12 22 1197280 11112.07 437 422 107.7
D 13 235 1001143 9291.06 437 422 107.7
D 6 223 313378 2905.6 437 422 107.7

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