ASTROSAT CZTI

Data Quality Report

Orbit 38116

Creation date: 2024-06-27T21:48:35.464390
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/AS1A11_065T21_9000005364_38116cztM0_level2.fits modeM0/AS1A11_065T21_9000005364_38116cztM0_level2_quad_clean.evt
Size (bytes)330,454,08091,399,680
Size315.1 MB 87.2 MB
Events in quadrant A2,667,481622,503
Events in quadrant B2,562,878630,462
Events in quadrant C2,458,038606,778
Events in quadrant D4,145,515549,619

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110443
B0111582
C0104502
D0159522

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5117100.195427%
B5117811.582959%
C511730.058628%
D5117510.996678%

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 7239 5118 3 3 0.04% 0.06%
B 7239 5118 51 51 0.70% 1.00%
C 7239 5118 1 1 0.01% 0.02%
D 7239 5118 43 43 0.59% 0.84%

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 354417 3033.41 581 573 116.6
A 12 189 40384 341.29 581 573 116.6
A 12 16 10831 87.94 581 573 116.6
B 5 172 150822 1354.18 576 563 111.0
B 0 229 138598 1244.01 576 563 111.0
B 12 111 13335 115.11 576 563 111.0
C 15 214 213494 1619.71 563 566 131.5
C 1 23 20256 149.78 563 566 131.5
C 0 10 10757 77.52 563 566 131.5
D 12 235 1704026 12514.74 555 538 136.1
D 13 249 161561 1182.96 555 538 136.1
D 1 52 40772 295.58 555 538 136.1

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