ASTROSAT CZTI

Data Quality Report

Orbit 07664

Creation date: 2024-06-27T15:22:25.845926
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/AS1G06_114T01_9000001056_07664cztM0_level2.evt modeM0/AS1G06_114T01_9000001056_07664cztM0_level2_quad_clean.evt
Size (bytes)232,911,36035,386,560
Size222.1 MB 33.7 MB
Events in quadrant A1,458,243213,517
Events in quadrant B1,545,768213,538
Events in quadrant C1,440,845212,635
Events in quadrant D2,387,309201,649

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066362
B067391
C065771
D093431

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3234180.556586%
B3234230.711194%
C3234130.401979%
D32341935.967842%

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 3234 3234 0 0 0.00% 0.00%
B 3234 3234 1 1 0.03% 0.03%
C 3234 3234 0 0 0.00% 0.00%
D 3234 3234 115 115 3.56% 3.56%

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 15 174 16196 201.02 374 366 78.8
A 0 226 3621 41.33 374 366 78.8
A 12 194 3327 37.6 374 366 78.8
B 0 229 25236 336.2 377 368 74.0
B 0 230 19568 259.57 377 368 74.0
B 4 80 11544 151.09 377 368 74.0
C 8 128 6420 69.58 363 366 87.0
C 8 112 3755 38.95 363 366 87.0
C 13 61 2877 28.86 363 366 87.0
D 2 152 761975 8601.93 352 340 88.5
D 13 104 119531 1346.15 352 340 88.5
D 12 233 44385 497.45 352 340 88.5

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