ASTROSAT CZTI

Data Quality Report

Orbit 00407

Creation date: 2024-06-27T13:59:25.534688
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/AS1P01_161T03_9000000070_00407cztM0_level2.evt modeM0/AS1P01_161T03_9000000070_00407cztM0_level2_quad_clean.evt
Size (bytes)141,168,96012,582,720
Size134.6 MB 12.0 MB
Events in quadrant A1,055,01480,796
Events in quadrant B1,015,64776,452
Events in quadrant C970,00579,383
Events in quadrant D1,175,13177,209

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037371
B036170
C034870
D040810

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85130.352526%
B85120.235018%
C85100.000000%
D85130.352526%

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 851 851 27 27 3.17% 3.17%
B 851 851 14 14 1.65% 1.65%
C 851 851 5 5 0.59% 0.59%
D 851 851 47 47 5.52% 5.52%

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 15 200 17048 293.91 257 256 57.1
A 0 238 16828 290.06 257 256 57.1
A 12 243 13081 224.47 257 256 57.1
B 4 82 22452 368.5 246 247 60.3
B 0 182 15851 258.95 246 247 60.3
B 2 253 4357 68.21 246 247 60.3
C 1 1 70139 1085.37 227 236 64.4
C 9 206 2255 31.35 227 236 64.4
C 10 38 2167 29.98 227 236 64.4
D 12 237 99152 1339.05 231 238 73.9
D 1 4 51886 699.18 231 238 73.9
D 1 5 41220 554.79 231 238 73.9

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