ASTROSAT CZTI

Data Quality Report

Orbit 02154

Creation date: 2024-06-27T14:14:40.856072
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/AS1T01_072T02_9000000336_02154cztM0_level2.evt modeM0/AS1T01_072T02_9000000336_02154cztM0_level2_quad_clean.evt
Size (bytes)141,310,08038,315,520
Size134.8 MB 36.5 MB
Events in quadrant A1,375,759252,337
Events in quadrant B963,116261,058
Events in quadrant C897,739248,121
Events in quadrant D897,921246,429

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A056111
B043151
C042191
D043291

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A20961044.961832%
B209600.000000%
C209600.000000%
D209620.095420%

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 2096 2096 153 153 7.30% 7.30%
B 2096 2096 0 0 0.00% 0.00%
C 2096 2096 0 0 0.00% 0.00%
D 2096 2096 5 5 0.24% 0.24%

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 0 247 498690 11018.36 225 222 45.2
A 15 236 8839 190.47 225 222 45.2
A 0 1 2996 61.32 225 222 45.2
B 0 234 74384 1712.88 229 225 43.3
B 15 222 6270 139.62 229 225 43.3
B 0 220 4173 91.19 229 225 43.3
C 9 85 29337 596.6 216 216 48.8
C 10 34 11061 222.18 216 216 48.8
C 1 192 7630 151.89 216 216 48.8
D 2 31 31017 615.63 218 214 50.0
D 5 233 14967 294.85 218 214 50.0
D 2 107 9793 191.45 218 214 50.0

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