ASTROSAT CZTI

Data Quality Report

Orbit 28934

Creation date: 2024-06-27T19:58:07.057752
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_048T07_9000004148_28934cztM0_level2.evt modeM0/AS1A10_048T07_9000004148_28934cztM0_level2_quad_clean.evt
Size (bytes)142,479,36037,906,560
Size135.9 MB 36.2 MB
Events in quadrant A980,150255,533
Events in quadrant B1,030,275266,233
Events in quadrant C1,084,333248,552
Events in quadrant D1,090,391240,650

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041401
B042891
C044241
D045171

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A187730.159830%
B1877120.639318%
C1877583.090037%
D1877211.118807%

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 1876 1876 0 0 0.00% 0.00%
B 1876 1876 0 0 0.00% 0.00%
C 1876 1876 1 1 0.05% 0.05%
D 1876 1876 9 9 0.48% 0.48%

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 3632 64.39 253 249 52.5
A 3 137 2344 39.88 253 249 52.5
A 0 226 2077 34.8 253 249 52.5
B 10 245 9541 183.5 259 254 50.6
B 12 111 5845 110.47 259 254 50.6
B 11 111 5174 97.21 259 254 50.6
C 3 233 66582 1123.75 246 247 59.0
C 14 238 45019 758.46 246 247 59.0
C 14 254 5683 92.09 246 247 59.0
D 8 195 102871 1727.83 241 235 59.4
D 1 52 50344 843.56 241 235 59.4
D 2 153 10763 177.23 241 235 59.4

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