ASTROSAT CZTI

Data Quality Report

Orbit 42414

Creation date: 2024-06-27T22:39:58.488517
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/AS1T05_138T01_9000005802_42414cztM0_level2.fits modeM0/AS1T05_138T01_9000005802_42414cztM0_level2_quad_clean.evt
Size (bytes)320,682,24093,507,840
Size305.8 MB 89.2 MB
Events in quadrant A2,987,749627,854
Events in quadrant B2,520,835647,487
Events in quadrant C2,593,313618,629
Events in quadrant D3,343,048555,551

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120132
B0112102
C0110992
D0136252

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5460120.219780%
B5460150.274725%
C546050.091575%
D54611432.618568%

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 9074 5462 4 4 0.04% 0.07%
B 9074 5462 7 7 0.08% 0.13%
C 9074 5462 0 0 0.00% 0.00%
D 9075 5463 124 124 1.37% 2.27%

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 10 83 573565 4530.76 613 599 126.5
A 13 248 28014 216.79 613 599 126.5
A 13 6 10875 81.26 613 599 126.5
B 3 112 49252 421.52 607 591 115.4
B 15 85 24045 203.17 607 591 115.4
B 5 252 20481 172.3 607 591 115.4
C 15 214 229648 1656.61 596 599 138.3
C 0 207 14535 100.79 596 599 138.3
C 4 254 7168 47.51 596 599 138.3
D 2 16 371658 2538.03 592 575 146.2
D 1 52 287911 1965.24 592 575 146.2
D 12 6 103763 705.76 592 575 146.2

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