ASTROSAT CZTI

Data Quality Report

Orbit 00707

Creation date: 2024-06-27T14:01:50.332019
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/AS1P01_141T01_9000000104_00707cztM0_level2.evt modeM0/AS1P01_141T01_9000000104_00707cztM0_level2_quad_clean.evt
Size (bytes)977,299,20082,270,080
Size932.0 MB 78.5 MB
Events in quadrant A6,734,004526,716
Events in quadrant B7,825,248533,974
Events in quadrant C7,845,575521,401
Events in quadrant D6,805,055500,409

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0241861
B0273942
C0274381
D0244191

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5853280.478387%
B5852540.922761%
C585380.136682%
D5853530.905519%

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 7043 5854 169 169 2.40% 2.89%
B 7042 5853 436 436 6.19% 7.45%
C 7043 5854 219 219 3.11% 3.74%
D 7043 5854 289 289 4.10% 4.94%

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 15 171 115722 277.49 1717 1732 410.8
A 13 8 21374 47.82 1717 1732 410.8
A 15 69 7864 14.93 1717 1732 410.8
B 5 247 495217 1171.96 1819 1832 421.0
B 5 191 240534 567.0 1819 1832 421.0
B 7 221 69199 160.02 1819 1832 421.0
C 3 31 294036 635.77 1655 1718 459.8
C 3 95 258847 559.24 1655 1718 459.8
C 3 15 235837 509.19 1655 1718 459.8
D 6 226 411593 850.71 1561 1615 481.9
D 0 25 248577 512.45 1561 1615 481.9
D 12 188 120937 247.6 1561 1615 481.9

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