ASTROSAT CZTI

Data Quality Report

Orbit 08361

Creation date: 2024-06-27T15:31:38.017060
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/AS1A03_036T01_9000001164_08361cztM0_level2.evt modeM0/AS1A03_036T01_9000001164_08361cztM0_level2_quad_clean.evt
Size (bytes)147,876,48030,957,120
Size141.0 MB 29.5 MB
Events in quadrant A1,031,322198,041
Events in quadrant B1,094,099201,870
Events in quadrant C1,026,645196,607
Events in quadrant D1,181,352188,448

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A043462
B044861
C043261
D048531

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2095211.002387%
B2095361.718377%
C2095140.668258%
D2095211.002387%

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 3120 2096 0 0 0.00% 0.00%
B 3120 2096 0 0 0.00% 0.00%
C 3120 2096 0 0 0.00% 0.00%
D 3120 2096 5 5 0.16% 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 15 239 4227 72.11 265 259 55.0
A 13 251 3676 62.1 265 259 55.0
A 14 111 3204 53.52 265 259 55.0
B 0 214 16424 305.51 269 262 52.9
B 4 81 14021 260.09 269 262 52.9
B 4 173 10340 190.51 269 262 52.9
C 13 61 2027 28.09 263 264 62.8
C 3 202 629 5.82 263 264 62.8
C -1 -1 -1 -1.0 263 264 62.8
D 2 152 124778 1925.78 259 250 64.7
D 7 71 23759 363.56 259 250 64.7
D 1 52 14360 218.21 259 250 64.7

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