ASTROSAT CZTI

Data Quality Report

Orbit 43695

Creation date: 2024-06-27T22:54:39.082652
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/AS1A13_008T01_9000005898_43695cztM0_level2.fits modeM0/AS1A13_008T01_9000005898_43695cztM0_level2_quad_clean.evt
Size (bytes)250,151,04037,514,880
Size238.6 MB 35.8 MB
Events in quadrant A3,369,818242,856
Events in quadrant B1,493,707261,312
Events in quadrant C2,580,686224,822
Events in quadrant D1,630,653236,559

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116631
B060731
C093411
D064771

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A236326411.172239%
B23641064.483926%
C236444718.908629%
D2364903.807107%

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 2363 2363 14 14 0.59% 0.59%
B 2364 2364 45 45 1.90% 1.90%
C 2364 2364 303 303 12.82% 12.82%
D 2364 2364 56 56 2.37% 2.37%

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 15 222 1814328 32374.68 263 258 56.0
A 10 83 356930 6365.32 263 258 56.0
A 14 63 130445 2323.37 263 258 56.0
B 5 235 207699 3814.21 266 258 54.4
B 4 206 75852 1389.94 266 258 54.4
B 5 255 58409 1069.22 266 258 54.4
C 15 157 1289324 22123.02 240 242 58.3
C 3 233 294347 5047.38 240 242 58.3
C 15 174 14311 241.45 240 242 58.3
D 13 171 138561 2002.76 263 255 69.1
D 5 235 82543 1191.58 263 255 69.1
D 2 136 63174 911.11 263 255 69.1

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