ASTROSAT CZTI

Data Quality Report

Orbit 07760

Creation date: 2024-06-27T15:23:38.067836
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_064T01_9000001066_07760cztM0_level2.evt modeM0/AS1G06_064T01_9000001066_07760cztM0_level2_quad_clean.evt
Size (bytes)195,082,56026,807,040
Size186.0 MB 25.6 MB
Events in quadrant A1,387,416147,402
Events in quadrant B1,463,131151,019
Events in quadrant C1,361,633147,522
Events in quadrant D1,478,641140,314

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A063460
B064390
C063360
D066690

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A316520.063191%
B316530.094787%
C316500.000000%
D316530.094787%

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 3165 3165 0 0 0.00% 0.00%
B 3165 3165 1 1 0.03% 0.03%
C 3165 3165 0 0 0.00% 0.00%
D 3165 3165 4 4 0.13% 0.13%

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 0 226 3557 43.24 359 350 74.2
A 12 194 3228 38.8 359 350 74.2
A 8 6 2418 27.88 359 350 74.2
B 4 173 20487 291.52 358 350 69.1
B 0 219 14922 210.95 358 350 69.1
B 0 214 14565 205.79 358 350 69.1
C 13 61 2683 28.79 348 350 81.0
C 12 4 1713 16.82 348 350 81.0
C 8 222 1202 10.52 348 350 81.0
D 2 152 62337 704.51 353 343 88.0
D 12 221 36838 414.74 353 343 88.0
D 2 14 14627 162.33 353 343 88.0

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