ASTROSAT CZTI

Data Quality Report

Orbit 47995

Creation date: 2024-08-13T01:49:25.162915
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_062T02_9000006384_47995cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47995cztM0_level2_quad_clean.evt
Size (bytes)462,772,800108,607,680
Size441.3 MB 103.6 MB
Events in quadrant A7,103,776687,816
Events in quadrant B3,090,704752,469
Events in quadrant C3,175,911727,962
Events in quadrant D3,258,772669,587

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254804
B0135812
C0140182
D0143882

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64584336.704862%
B6458701.083927%
C6458540.836172%
D6458811.254258%

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 7538 6459 104 104 1.38% 1.61%
B 7538 6459 3 3 0.04% 0.05%
C 7538 6459 26 26 0.34% 0.40%
D 7538 6459 45 45 0.60% 0.70%

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 4165091 27515.95 732 717 151.3
A 14 248 56000 365.28 732 717 151.3
A 7 3 35937 232.71 732 717 151.3
B 7 221 67727 461.32 742 721 145.2
B 0 198 40416 273.29 742 721 145.2
B 0 197 33002 222.25 742 721 145.2
C 14 254 144921 836.42 729 736 172.4
C 15 208 82588 474.83 729 736 172.4
C 1 3 53780 307.71 729 736 172.4
D 2 249 263463 1432.11 731 709 183.5
D 5 222 80709 436.03 731 709 183.5
D 11 224 37979 203.13 731 709 183.5

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