ASTROSAT CZTI

Data Quality Report

Orbit 43978

Creation date: 2024-06-27T22:57:53.185828
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_065T06_9000005924_43978cztM0_level2.fits modeM0/AS1A13_065T06_9000005924_43978cztM0_level2_quad_clean.evt
Size (bytes)621,437,76095,958,720
Size592.6 MB 91.5 MB
Events in quadrant A11,286,805346,545
Events in quadrant B3,595,533734,363
Events in quadrant C3,047,619718,013
Events in quadrant D4,558,573644,420

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0381282
B0152422
C0137892
D0181912

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6621384057.997281%
B66212393.609727%
C6620490.740181%
D66202413.640483%

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 7606 6622 2629 2629 34.56% 39.70%
B 7606 6622 108 108 1.42% 1.63%
C 7605 6621 12 12 0.16% 0.18%
D 7605 6621 178 178 2.34% 2.69%

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 15 223 8100308 79941.24 484 474 101.3
A 10 83 874563 8626.81 484 474 101.3
A 15 222 289361 2851.17 484 474 101.3
B 5 172 488849 3267.87 747 725 149.4
B 0 200 43613 287.12 747 725 149.4
B 0 183 27312 177.99 747 725 149.4
C 14 254 114256 646.45 742 745 175.6
C 2 14 14508 78.38 742 745 175.6
C 3 233 13964 75.28 742 745 175.6
D 1 52 638772 3402.03 731 708 187.6
D 4 222 290279 1543.94 731 708 187.6
D 12 17 230061 1222.86 731 708 187.6

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