ASTROSAT CZTI

Data Quality Report

Orbit 24200

Creation date: 2024-06-27T19:03:23.314648
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/AS1A07_160T05_9000003580_24200cztM0_level2.evt modeM0/AS1A07_160T05_9000003580_24200cztM0_level2_quad_clean.evt
Size (bytes)445,443,840102,576,960
Size424.8 MB 97.8 MB
Events in quadrant A3,155,364685,885
Events in quadrant B3,222,909700,922
Events in quadrant C3,453,493651,882
Events in quadrant D3,230,359628,253

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132392
B0134522
C0141562
D0137623

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6293310.492611%
B6294530.842072%
C6294791.255164%
D6293791.255363%

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 8798 6295 0 0 0.00% 0.00%
B 8799 6296 0 0 0.00% 0.00%
C 8799 6296 1 1 0.01% 0.02%
D 8798 6295 51 51 0.58% 0.81%

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 13 254 10401 58.91 818 803 162.9
A 0 226 7157 39.0 818 803 162.9
A 3 137 6878 37.29 818 803 162.9
B 12 111 18032 112.61 821 801 153.0
B 11 111 15930 98.87 821 801 153.0
B 14 111 14381 88.75 821 801 153.0
C 7 247 248265 1378.06 781 788 179.6
C 14 238 126460 699.79 781 788 179.6
C 3 233 24574 132.45 781 788 179.6
D 7 38 127752 675.98 777 753 187.9
D 8 195 102884 543.62 777 753 187.9
D 7 238 27077 140.12 777 753 187.9

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