ASTROSAT CZTI

Data Quality Report

Orbit 30677

Creation date: 2024-06-27T20:18:30.513637
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/AS1A10_094T80_9000004424_30677cztM0_level2.evt modeM0/AS1A10_094T80_9000004424_30677cztM0_level2_quad_clean.evt
Size (bytes)134,081,28021,697,920
Size127.9 MB 20.7 MB
Events in quadrant A532,774151,193
Events in quadrant B863,496147,940
Events in quadrant C563,249146,432
Events in quadrant D2,018,259121,349

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023910
B035490
C024610
D068200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A118000.000000%
B118150.423370%
C118140.338696%
D118140534.292972%

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 1180 1180 0 0 0.00% 0.00%
B 1181 1181 0 0 0.00% 0.00%
C 1181 1181 1 1 0.08% 0.08%
D 1181 1181 443 443 37.51% 37.51%

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 13 12241 418.12 134 131 29.0
A 13 254 2280 74.2 134 131 29.0
A 3 137 1313 40.81 134 131 29.0
B 6 159 337277 12607.0 130 127 26.7
B 4 81 14106 522.71 130 127 26.7
B 12 111 3005 107.62 130 127 26.7
C 3 233 58244 1877.43 123 124 31.0
C 14 238 20194 648.31 123 124 31.0
C 2 114 2715 83.7 123 124 31.0
D 12 233 735484 26197.81 111 107 28.1
D 8 195 487387 17359.35 111 107 28.1
D 1 52 163939 5836.51 111 107 28.1

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